Giving an example list two information which make a chemical equation more useful (informative). -Chemistry

Giving an example list two information which make a chemical equation more useful (informative). -Chemistry
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(i) Physical state of reactants must be mentioned, e.g. 2H2 (g) + O2 (g)——– > 2H20 (l) (ii) Condition in which reaction takes place are written on the arrow head, e.g. Consider the following chemical reaction X + Barium chloride——–> Y + Sodium chloride (White ppt) (a) Identify ‘X’ and ‘Y’ (b) The type of reaction (a) ‘X’ is Na2SO4 and Y is BaSO4. (b) The type of reaction Na2SO4 + BaCl2—–> BaSO4 + 2NaCl (White ppt) The reaction is precipitation reaction. It is also called double displacement reaction.
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What are the ways by which a chemical equation can be made more informative ?

Description : What are the ways by which a chemical equation can be made more informative ?

Last Answer : 1. The physical state of the reactants and products can be indicated by putting (s) for solid, (l) for liquid, (g) for gas and (aq) for aqueous state. 2. Evolution or ... before their formulae. 5. By the sign → or  information about irreversible and reversible reactions can be obtained.

2g of ferrous sulphate crystals are heated in a dry boiling tube. (i) List any two observations. (ii) Name the type of chemical reaction taking place. (iii) ‘Write the chemical equation for the reaction. -Chemistry

Description : 2g of ferrous sulphate crystals are heated in a dry boiling tube. (i) List any two observations. (ii) Name the type of chemical reaction taking place. (iii) ‘Write the chemical equation for the reaction. -Chemistry

Last Answer : Answer. (i) •Green colour of Fe SO4 disappears and reddish brown solid is formed. • Smell of burning sulphur. (ii) Decomposition reaction

Write the chemical equation of the reaction in which the following changes have taken place with an example of each: (i) Change in colour (ii) Change in temperature (iii) Formation of precipitate -Chemistry

Description : Write the chemical equation of the reaction in which the following changes have taken place with an example of each: (i) Change in colour (ii) Change in temperature (iii) Formation of precipitate -Chemistry

Last Answer : (i)Cu (s) + 2AgNO3 (aq)———–> Cu(NO3)2(aq) + 2Ag The solution will become blue in colour and shiny silver metal will be deposited. (ii) NaOH + HCl ——&mdash ... )———–> Pbl2 (s) + 2KNO3 (aq) Yellow ppt Yellow precipitate of Pbl2will be formed.

What are some experiments or research we could do that would yield informative and useful results, but may be quite unethical?

Description : What are some experiments or research we could do that would yield informative and useful results, but may be quite unethical?

Last Answer : Send all the world’s top athletes (track & field) to Afghanistan & see if they qualify for the next Paralympics? Ouch, that stings a little!

I am planning to move to London in 3 months and I am most concern with how much it will cost me to live decently in this place. I found some useful and informative sites regarding accommodation, but I couldn't find something that can figuratively tell me the cost of a decent meal, utilities among others. Can anyone share their knowledge? Anything that can help me compute for my monthly expenses would be most appreciated.

Description : I am planning to move to London in 3 months and I am most concern with how much it will cost me to live decently in this place. I found some useful and informative sites regarding ... anyone share their knowledge? Anything that can help me compute for my monthly expenses would be most appreciated.

Last Answer : answer:CCCCCONGRATULATIONS, YOU MADE THE LARGEST QUESTION YET !!! …and i’m not even gonna bother reading something that long…

12.Few iron filings and a pinch of sulphur powder are taken in a china dish and mixed properly. Justify the change, giving two points as physical/chemical change. -Chemistry

Description : 12.Few iron filings and a pinch of sulphur powder are taken in a china dish and mixed properly. Justify the change, giving two points as physical/chemical change. -Chemistry

Last Answer : It is a physical change as if we will bring the magnet near it all the iron fillings will attract towards it. Hence it shows the properties of it constituents are present so, no new substance is formed. Therefore, it is a physical change .

Giving a suitable example for each, explain the following : (i) Crystal field splitting (ii) Linkage isomerism (iii) Ambidentate ligand -Chemistry

Description : Giving a suitable example for each, explain the following : (i) Crystal field splitting (ii) Linkage isomerism (iii) Ambidentate ligand -Chemistry

Last Answer : i) Crystal field splitting: It is the splitting of the degenerate energy levels due to the presence of ligands. When ligand approaches a transition metal ion, the degenerate d-orbitals split into two ... the nitrogen atom or one of the oxygen atoms. Example : - SCN thiocyanate, - NCS isothiocyanate

Explain why calcium metal after reacting with water starts floating on its * surface. Write the chemical equation for the reaction. Name one more metal that starts floating after some time when immersed in water. -Chemistry

Description : Explain why calcium metal after reacting with water starts floating on its * surface. Write the chemical equation for the reaction. Name one more metal that starts floating after some time when immersed in water. -Chemistry

Last Answer : Calcium starts floating because the bubbles of hydrogen gas formed stick to the surface of metal. Magnesium reacts with hot water and starts floating due to the bubbles of hydrogen gas sticking to its surface.

What is meant by skeltal type chemical equation? What does it represent? Using the equation for electrolytic decomposition of water, differentiate between a skeltal chemical equation and a balanced chemical equation. -Chemistry

Description : What is meant by skeltal type chemical equation? What does it represent? Using the equation for electrolytic decomposition of water, differentiate between a skeltal chemical equation and a balanced chemical equation. -Chemistry

Last Answer : Answer. The equations in which gaseous are written in atomic form instead of molecular form and equation is not balanced, are called skeltal type equation. They represent gaseous elements formed in atomic state and equation is not balanced

Which products will be obtained when lead nitrate is heated simply. Write balanced chemical equation for the reaction? State the type of chemical reaction that occur in the change. -Chemistry

Description : Which products will be obtained when lead nitrate is heated simply. Write balanced chemical equation for the reaction? State the type of chemical reaction that occur in the change. -Chemistry

Last Answer : Answer. Lead monoxide, nitrogen dioxide and oxygen gas will be liberated. It is thermal decomposition reaction.

Write chemical equation reactions taking place when carried out with the help of (a) Iron reacts with steam (b) Magnesium reacts with dil HCl (c) Copper is heated in air. -Chemistry

Description : Write chemical equation reactions taking place when carried out with the help of (a) Iron reacts with steam (b) Magnesium reacts with dil HCl (c) Copper is heated in air. -Chemistry

Last Answer : This is the Answer.

What is observed when a solution of potassium iodide solution is added to a solution of lead nitrate? Name the type of reaction. Write a balanced chemical equation to represent the above chemical reaction. -Chemistry

Description : What is observed when a solution of potassium iodide solution is added to a solution of lead nitrate? Name the type of reaction. Write a balanced chemical equation to represent the above chemical reaction. -Chemistry

Last Answer : Answer.Yellow precipitate of lead iodide is formed. It is precipitation reaction. Pb( NO3)2 (aq) + 2KI (aq) —-> Pbl2 (s) + 2KNO3 (aq) It is also called double displacement reaction.

(a) Write the essential condition for the following reaction to take place: 2AgBr—-> 2Ag + Br2 Write one application of this reaction. (b) Complete the following chemical equation of a chemical reaction 2FeS04 — chemical-reactions-and-equations-chapter-wise-important-questions-class-10-science-5 (c) What happens when water is added to quick line. Write chemical equation. -Chemistry

Description : (a) Write the essential condition for the following reaction to take place: 2AgBr--> 2Ag + Br2 Write one application of this reaction. (b) Complete the following chemical equation of a chemical ... science-5 (c) What happens when water is added to quick line. Write chemical equation. -Chemistry

Last Answer : Answer. This reaction is used in photography. (c) Slaked lime is formed with hissing sound and lot of heat is envolved.

(a) Define a balanced chemical equation. Why should an equation be balanced? (b) Write the balanced chemical equation for the following reaction: (i) Phosphorus burns in presence of chlorine to form phosphorus penta chloride. (ii) Burning of natural gas. (iii) The process of respiration. -Chemistry

Description : (a) Define a balanced chemical equation. Why should an equation be balanced? (b) Write the balanced chemical equation for the following reaction: (i) Phosphorus burns in presence of chlorine to form phosphorus penta chloride. (ii) Burning of natural gas. (iii) The process of respiration. -Chemistry

Last Answer : Answer. (a) Balanced chemical equation has an equal number of atoms of different elements in the reactants and products. According to law of conservation of mass, matter can neither be created nor be destroyed in a chemical ... C6H12O6 (s) + 6O2 (g) + 6H2O ---> 6CO2 (aq) + 12H2O (l) + energy

A Name the type of chemical reaction represented by the following equation: -Chemistry

Description : A Name the type of chemical reaction represented by the following equation: -Chemistry

Last Answer : Answer. (i) Combination reaction (ii) Double displacement reaction (Precipitation reaction) (iii) Decomposition reaction.

i) Write a balanced chemical equation for process of photosynthesis. (ii)When do desert plants take up carbon dioxide and perform photosynthesis? -Chemistry

Description : i) Write a balanced chemical equation for process of photosynthesis. (ii)When do desert plants take up carbon dioxide and perform photosynthesis? -Chemistry

Last Answer : Answer. (ii) In desert plants the stomata are open at night. They take CO2 at night and is stored in the form of acid and is used during day time for photosynthesis.

“We need to balance a skeltal chemical equation.” Give reason to justify the statement. -Chemistry

Description : “We need to balance a skeltal chemical equation.” Give reason to justify the statement. -Chemistry

Last Answer : Skeltal chemical equation are unbalanced. We need to balance chemical equation because of law of conservation of mass. It states that ‘matter can neither be created nor be destroyed’. Therefore chemical equation must be balanced in each and every chemical reaction.

10.(a) An ore on treatment with dilute hydrochloric acid produces brisk effervesces. What type of ore is this? What steps will be required to obtain metal from the enriched ore. , (b) Copper coin is kept immersed in silver nitrate solution for some time. What change will take place in coin and colour of the solution ? Write balanced chemical equation of the reaction involved. -Chemistry

Description : 10.(a) An ore on treatment with dilute hydrochloric acid produces brisk effervesces. What type of ore is this? What steps will be required to obtain metal from the enriched ore. , (b) ... in coin and colour of the solution ? Write balanced chemical equation of the reaction involved. -Chemistry

Last Answer : (a) Carbonate ore: (i) Calcination: Carbonate ore is heated in limited supply of air and oxide is obtained, e.g. (b) Copper, being more reactive than silver will displace silver from silver nitrate ... and there will be deposition of silver on copper coin. The colour of solution will turn to blue.

Audit programs generally include procedures to test actual transactions and resulting balances. These procedures are primarily designed to a. Detect irregularities that result in misstated financial statements. b. Test the adequacy of internal control. c. Gather corroborative evidence. d. Obtain information of informative disclosures

Description : Audit programs generally include procedures to test actual transactions and resulting balances. These procedures are primarily designed to a. Detect irregularities that result in misstated financial ... control. c. Gather corroborative evidence. d. Obtain information of informative disclosures

Last Answer : Gather corroborative evidence

A metal ‘X’ acquires a green colour coating on its surface on exposure to air. (i) Identify the metal ‘X’ and name the process responsible for this change. (ii)Name and write chemical formula of the green coating formed on the metal. (iii) List two important methods to prevent the process. -Chemistry

Description : A metal X' acquires a green colour coating on its surface on exposure to air. (i) Identify the metal X' and name the process responsible for this change. (ii)Name and write chemical ... the green coating formed on the metal. (iii) List two important methods to prevent the process. -Chemistry

Last Answer : (i) Metal is copper. The process is corrosion. (ii)Basic copper carbonate [CuCO3.Cu(0H)2]. (iii) • It should be coated with tin • It should be mixed with other metals to form alloys.

Write a balanced chemical equation with state symbols for the following reactions : -Chemistry-10

Description : Write a balanced chemical equation with state symbols for the following reactions : -Chemistry-10

Last Answer : (i) BaCl2 (aq) + Na2SO4 (aq) → BaSO4(s) + 2NaCl (aq) (ii) NaOH (aq) + HCl(aq) → NaCl(aq) + H2O(l)

Write the balanced equation for the following chemical reactions. (i) Hydrogen + Chlorine → Hydrogen chloride (ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride (iii) Sodium + Water → Sodium hydroxide + Hydrogen -Chemistry-10

Description : Write the balanced equation for the following chemical reactions. (i) Hydrogen + Chlorine → Hydrogen chloride (ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride (iii) Sodium + Water → Sodium hydroxide + Hydrogen -Chemistry-10

Last Answer : (i) H2 + Cl2 → 2HCl (ii) 3 BaCl2 + Al2(SO4)3 → BaSO4 + 2 AlCl3 (iii) 2Na + 2H2O → 2NaOH + H2↑

To create a Google-friendly site, which of the following is a step towards giving visitors the information they're looking for? A. Create a helpful, information-rich site. B. Think about the words users would type to find your pages and include those words on your site. C. If your pages contain useful information, the content will attract many visitors and entice webmasters to link to your site. D. All of the above

Description : To create a Google-friendly site, which of the following is a step towards giving visitors the information they're looking for? A. Create a helpful, information-rich site. B. Think about the words ... will attract many visitors and entice webmasters to link to your site. D. All of the above

Last Answer : D. All of the above

Give two examples of ligands which form coordination compounds useful in analytical chemistry. -Chemistry

Description : Give two examples of ligands which form coordination compounds useful in analytical chemistry. -Chemistry

Last Answer : Examples : (i) EDTA (Ethylene diamine tetra-acetic acid) (ii) Dimethyl glyoxime (DMG)

Write an equation for the Chemistry involved when a drop of hydrochloric acid make a hole in nylon stockings.

Description : Write an equation for the Chemistry involved when a drop of hydrochloric acid make a hole in nylon stockings.

Last Answer : Ans. The (— CO — NH —) amide bond in nylon gets hydrolysed. 

Will Biden's next speech be informative? Anxious to hear him.

Description : Will Biden's next speech be informative? Anxious to hear him.

Last Answer : I’m glad he’s not speechifying much—it’s a waste of time. He’s working and getting things done.

Are television debates in Presidential campaigns informative or just entertaining?

Description : Are television debates in Presidential campaigns informative or just entertaining?

Last Answer : entertainment

Do you have any extra-informative videos you'd care to share with us? (Details)

Description : Do you have any extra-informative videos you'd care to share with us? (Details)

Last Answer : Here’s one I wish I had in High School…

Is intelius.com really good and informative when it comes to wanting to know who's really calling you,where they live, etc?

Description : Is intelius.com really good and informative when it comes to wanting to know who's really calling you,where they live, etc?

Last Answer : I wasn't at all impressed with the service. Once I signed up and payed, which is the only way you can get the full reports, I did some searches on some very close friends of mine, people I know ... but doesn't do anything to ensure that the data they have is correct. I would steer clear of them.

Does anyone know any especially informative sites about Christopher Columbus?

Description : Does anyone know any especially informative sites about Christopher Columbus?

Last Answer : It's not a website, but I recently read A Voyage Long and Strange by Tony Horwitz, which was about tracking down myths and half-truths about early American history. He had several ... through the West Indies. Apparently there's an amazingly large memorial to Columbus in the Dominican Republic.

What was the most memorable/informative course you took in college?

Description : What was the most memorable/informative course you took in college?

Last Answer : Logic/Philosophy. It was incredibly easy, and yet still educational.

Where can I find informative videos on how to do what?

Description : So far, I came across them more by chance, for example, how a girl painted with her hands in the sand, or how it is printed on a 3D printer. Which key should I search for? Thank you :)

Last Answer : czech page How to do it http://www.jaksetodela.cz/ page in English eHow http://www.ehow.com/ How to - discovery You Tube How to ... http://www.youtube .com / results? search_query = Jak + na & oq = Jak + na

What choice could be a topic for an informative speech?

Description : What choice could be a topic for an informative speech?

Last Answer : the musical influence of Elvis Presley

Can a newspaper be informative and entertaining at the same time?

Description : Can a newspaper be informative and entertaining at the same time?

Last Answer : Absolutely ! A newspaper usually reports on current affairs and sport. Additionally, they may include film reviews, recipes, jokes, puzzles and personal ads.

A systematic display of models, specimens, charts, real objects and any informative materials.

Description : A systematic display of models, specimens, charts, real objects and any informative materials.

Last Answer : Ans. Exhibition

The IMGC is the sole provider of mortgage guarantor for housing finance in India. The alphabet “I” in the abbreviation IMGC stands for________ A. India B. Institute C. Internal D. Informative E. International

Description : The IMGC is the sole provider of mortgage guarantor for housing finance in India. The alphabet “I” in the abbreviation IMGC stands for________ A. India B. Institute C. Internal D. Informative E. International

Last Answer : A. India Explanation: Mortgage Guarantee (also known as mortgage insurance in some parts of the world) is a financial product which compensates lending institutions or housing finance companies for ... down-payment amounts) earlier in life than would have been possible without IMGC s involvement.

An investor, while reading the financial statements of Star Corporation, learned that the statements are accompanied by an unqualified auditor's report. From this the investor may conclude that: a. The auditor has ascertained that Silver's financial statements have been prepared accurately. b. The auditor is satisfied that Silver is operationally efficient. c. Any disputes over significant accounting issues have been settled to the auditor's satisfaction. d. Informative disclosures in the financial statements but not necessarily in the notes to financial statements are to be regarded as reasonably adequate

Description : An investor, while reading the financial statements of Star Corporation, learned that the statements are accompanied by an unqualified auditor's report. From this the investor may conclude that: a ... but not necessarily in the notes to financial statements are to be regarded as reasonably adequate

Last Answer : Any disputes over significant accounting issues have been settled to the auditor's satisfaction.

define informative advertising?

Description : define informative advertising?

Last Answer : Ans: Informative advertising is a sales and marketing approach that focuses on the task of attracting consumers by educating them on the nature and benefits of products.

The informative labels affixed _______. A) Product. C) equipment B) tool. D) machine .

Description : The informative labels affixed _______. A) Product. C) equipment B) tool. D) machine .

Last Answer : product

the learner always appreciate Options: A) a concise and stimulating lecture B) A well researched and informative lecture C) a well organized and presentable lecture D) all of the above

Description : the learner always appreciate Options: A) a concise and stimulating lecture B) A well researched and informative lecture C) a well organized and presentable lecture D) all of the above

Last Answer : D) all of the above 

Two half-reactions of an electrochemical cell are given below : MnO–4 (aq) + 8H+ (aq) + 5e– → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + 2e–, E° = + 0.15 V. Construct the redox equation from the standard potential of the cell and predict if the reaction is reactant favoured or product favoured. -Chemistry

Description : Two half-reactions of an electrochemical cell are given below : MnO-4 (aq) + 8H+ (aq) + 5e- → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + 2e- ... the redox equation from the standard potential of the cell and predict if the reaction is reactant favoured or product favoured. -Chemistry

Last Answer : The reactions can be represented at anode and at cathode in the following ways : At anode (oxidation) : Sn2+ → = Sn4+ (aq) + 2e- ] 5 E° = + 0.15 V At cathode (reduction) : MnO-4(aq) + 8H+ ... = E°cathode - E°anode = 1.51 - 0.15 = + 1.36 V ∴ Positive value of E°cell favours formation of product.

Two half-reactions of an electrochemical cell are given below : MnO–4 (aq) + 8H+ (aq) + 5e– → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + 2e–, E° = + 0.15 V. Construct the redox reaction equation from the two half-reactions and calculate the cell potential from the standard potentials and predict if the reaction is reactant or product favoured. -Chemistry

Description : Two half-reactions of an electrochemical cell are given below : MnO-4 (aq) + 8H+ (aq) + 5e- → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + ... -reactions and calculate the cell potential from the standard potentials and predict if the reaction is reactant or product favoured. -Chemistry

Last Answer : The reactions can be represented at anode and at cathode in the following ways : At anode (oxidation) : Sn2+ → Sn4+ (aq) + 2e- ] 5 E° = + 0.15 V Af cathode (reduction) : MnO-4(aq) + 8H+ ( ... = E°cathode - E°anode = 1.51 - 0.15 = + 1.36 V ∴ Positive value of E°cell favours formation of product.

Write balanced equation for the reaction between magnesium and hydrochloric acid. Name the product obtained, identify the type of reaction. -Chemistry

Description : Write balanced equation for the reaction between magnesium and hydrochloric acid. Name the product obtained, identify the type of reaction. -Chemistry

Last Answer : Answer. The product formed is magnesium chloride and hydrogen gas. It is a displacement reaction.

What are metalloids? Explain by giving examples. -Chemistry-10

Description : What are metalloids? Explain by giving examples. -Chemistry-10

Last Answer : Metalloids are elements which show some properties of metals and some properties of non-metals. Examples: Silicon, boron, arsenic, antimony, germanium, tellurium, polonium.

What information do you get from the following chemical equation: Zn(s) + 2HCl (dil) → ZnCl2 (aq) + H2(g)

Description : What information do you get from the following chemical equation: Zn(s) + 2HCl (dil) → ZnCl2 (aq) + H2(g)

Last Answer : This gives zinc chloride and hydrogen. The word equation is: Zinc + Hydrochloric acid → Zinc chloride + Hydrogen Formulae for the products are ZnCl2 and H2

.Identify the physical and chemical changes from the following (i)Burning of magnesium in air (ii)Electrolysis of water (iii)Tarnishing of silver spoon (iv)Sublimation of iodine -Chemistry

Description : .Identify the physical and chemical changes from the following (i)Burning of magnesium in air (ii)Electrolysis of water (iii)Tarnishing of silver spoon (iv)Sublimation of iodine -Chemistry

Last Answer : (i) Burning of magnesium in air : Chemical change (ii) Tarnishing of silver spoon : Chemical change (iii) Sublimation of iodine : Physical change (iv) Electrolysis of water to form hydrogen and oxygen is also a chemical change.

State the type of chemical reactions and chemical equations that take place in the following: (i) Magnesium wire is burnt in air. (ii) Electric current is passed through water. (iii) Ammonia and hydrogen chloride gases’are mixed. -Chemistry

Description : State the type of chemical reactions and chemical equations that take place in the following: (i) Magnesium wire is burnt in air. (ii) Electric current is passed through water. (iii) Ammonia and hydrogen chloride gases’are mixed. -Chemistry

Last Answer : This is the Answer:

Write balanced chemical equations for the following reactions: (a) Dilute sulphuric acid reacts with aluminium powder. (b) Dilute hydrochloric acid reacts with sodium carbonate. (c) Carbon dioxide is passed through lime water. -Chemistry

Description : Write balanced chemical equations for the following reactions: (a) Dilute sulphuric acid reacts with aluminium powder. (b) Dilute hydrochloric acid reacts with sodium carbonate. (c) Carbon dioxide is passed through lime water. -Chemistry

Last Answer : i hope it helped you

What is Biological Chemistry? Chemical Biology? And BioOrganic Chemistry?

Description : What is Biological Chemistry? Chemical Biology? And BioOrganic Chemistry? 

Last Answer : Definition of Biological Chemistry: Biological Chemistry is the understanding how biological processes are controlled by underlying chemical principles. Definition of Chemical Biology: Chemical Biology is ... Biochemistry deals with study of life processes by means of biochemical methodology. 

Jaroslav Heyrovsky (Czechoslovakiw) received the 1959 Nobel Prize in chemistry for developing what technique used in chemical analysis?

Description : Jaroslav Heyrovsky (Czechoslovakiw) received the 1959 Nobel Prize in chemistry for developing what technique used in chemical analysis?

Last Answer : ANSWER: POLAROGRAPHY