Description : (1) a homogeneous mixture of two or more substances Explanation: A homogeneous mixture of two or more substances uniformly dispersed throughout a single phase is called solution. In such a mixture, a ... the solvent including its phase, and the solvent is commonly the major fraction of the mixture.
Last Answer : Choose the incorrect statement pertaining to organic compounds - (1) They have low melting and boiling points (2) They do not dissolve in water (3) They are not easily combustible (4) They contain mainly carbon and hydrogen
Description : Choose a statement that correctly defines the term AMALGAM: A. Amalgam is a metallic powder composed of silver, tin, copper and zinc B. Amalgam is an alloy of two or more metals that have been dissolved in ... is mixed with mercury E. Amalgam is an alloy of two or more metals, one of them is tin
Last Answer : C. Amalgam is an alloy of two or more metals, one of them is mercury
Description : When homogeneous mixture in which one substance is dissolved in another substance is known as a?
Last Answer : Need answer
Description : What Substance that dissolved or seems to disappear?
Description : What is a substance that donates H when dissolved in water?
Last Answer : This is an acid.
Description : Pick out the wrong statement (A) Co-current absorbers are usually used, when the gas to be dissolved in the liquid is a pure substance (B) In case of gas absorption, HETP is ... reaction (D) In actual practice, absorption is an endothermic process, while stripping is an exothermic process
Last Answer : (D) In actual practice, absorption is an endothermic process, while stripping is an exothermic process
Description : Co-current absorbers are usually used when the gas to be dissolved in the liquid is (A) Sparingly soluble (B) Highly soluble (C) A pure substance (D) A mixture
Last Answer : (C) A pure substance
Description : The process of taking dissolved material into the substance of the cell is called. a. Phagocytosis b. Pinocytosis c. absorption d. diffusion
Last Answer : absorption
Description : Give the term that describes different crystalline modifications of the same chemical substance. Is it: w) polymorphism x) isomorphism y) tetrahedral z) perovskite
Last Answer : ANSWER: W -- POLYMORPHISM
Description : a) 110 g of salt is present in 550g of solution. Calculate the concentration of solution. b) 10 ml of H2SO 4 is dissolved in 90 ml of H2O. Calculate the concentration of solution. -Chemistry
Last Answer : The concentration of salt is determined by the division of mass of the solute by the mass of the solution and the percentage is obtained by multiplying the value by 100. The quotient of the division of 110 by 550 is 0.2 here. So after multiplying it with 100, it is 20%. So the concentration is 20%.
Description : A pungent smelling gas X after being dried by concentrated `H_2SO_4` was dissolved in water to give strongly acidic solution. The gas also gives dense
Last Answer : A pungent smelling gas X after being dried by concentrated `H_2SO_4` was dissolved in water ... `CO_2` from the solution of sodium hydrogencarbonates.
Description : When 25 g of `Na_(2)SO_(4)` is dissolved in `10^(3)` Kg of solution, its concentration will be
Last Answer : When 25 g of `Na_(2)SO_(4)` is dissolved in `10^(3)` Kg of solution, its concentration will be A. 2.5 ppm B. 25 ppm C. 250 ppm D. 100 ppm
Description : To measure the quantity of `MnCl_(2)` dissolved in an queous solution, it was completely converted to `KMnO_(4)` using the reaction `MnCl_(2)+K_(2)S_(
Last Answer : To measure the quantity of `MnCl_(2)` dissolved in an queous solution, it was completely converted to `KMnO_(4)` ... g `mol^(-1)`: Mn=55,Cl=35.5)
Description : 10g sample of bleaching powder was dissolved into water to make the solution one litre. To this solution 35 mL of 1.0 M Mohr salt solution was added c
Last Answer : 10g sample of bleaching powder was dissolved into water to make the solution one litre. To this solution 35 ... Cl_(2)` approximately is (mol wt = 71)
Description : The species present in solution when `CO_(2)` is dissolved in water is/are:
Last Answer : The species present in solution when `CO_(2)` is dissolved in water is/are: A. `CO_(2), H_(2)CO_(3), HCO_(3)^ ... (3)^(-)` D. `CO_(2), H_(2)CO_(3)`
Description : Which of the following compounds when dissolved in water, gives a solution with pH less than seven ?
Last Answer : Which of the following compounds when dissolved in water, gives a solution with pH less than seven ? A. `CH_(3)COCH_( ... (5)NH_(2)` D. `C_(2)H_(5)OH`
Description : Is a solid is dissolved to make a solution used to clean jewellery physical or chemical?
Last Answer : jhzeiusduhjreest
Description : What no more solute can be dissolved in the solvent the solution is what?
Last Answer : The word you're looking for is..... saturated.
Description : When you open a bottle of carbonated cola you see bubbles of gas bursting from the surface. What can you infer about the amount of gas dissolved in the solution before you opened the bottle?
Last Answer : If gas comes out of solution when a bottle is opened, then there must have been a greater amount of dissolved gas in the substance while it was under pressure prior to opening the bottle.
Description : If 140 grams of KNO3 is dissolved in 100g of water at 80oC, the solution will be?
Last Answer : That's hard
Description : What is a solution A. a solid dissolved in a gas B. a solute and a solvent C. a liquid dissolved in a gas D. an amalgam of solids, liquids, and gases?
Last Answer : B. A solute and a solvent
Description : If a 2% solution of sewage sample is incubated for 5 days at 20°C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is A. 100 mg/l B. 200 mg/l C. 300 mg/l D. 400 mg/l
Last Answer : ANS: D
Description : What happens when? a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. b) A pinch of mercuric oxide is kept in a test tube. c)A small crystal of silver nitrate is dissolved in distilled water and a drop of ammonium hydroxide & a pinch of glucose powder are added.
Last Answer : a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. After a few hours a coating of copper is seen on iron nail/plate. It is based on displacement reaction. ... on the inner walls of the test tube. Aldehyde group in glucose reduced silver nitrate to metallic silver.
Description : The phenomenon occuring during pumping of a liquid solution containing dissolved gases, which may come out of the solution giving rise to gas pockets, is termed as (A) Evaporation (B) Cavitation (C) Sublimation (D) Stripping
Last Answer : (B) Cavitation
Description : The enthalpy change when ammonia gas is dissolved in water is called the heat of (A) Solution (B) Formation (C) Dilution (D) Combustion
Last Answer : (A) Solution
Description : On opening the soda water bottle the dissolved CO2 comes out, would the pH of the solution increase or decrease as the gas comes out? Give reason.
Last Answer : Answer. The pH of soda water increases. Because soda contains carbonic acid which is the weak one. When CO2 escape the carbonic acid’s strength weakens and therefore pH would increases.
Description : 20 gram of caustic soda are dissolved in water to prepare 500 ml of solution. Find the normality and molarity of solution.
Last Answer : Basis: 500 ml solution. Weight of solute = 20 gm Molecular weight of NaOH = 40 Gram moles of solute = 20/40 = 0.5 Molarity = Gram moles/ Volume of solution in lit 0.5/0.5 = 1 M Normality = gram equivalent of solute/ volume of solution in lit = 0.5/0.5 = 1N
Description : HCl is dissolved in solvent A; the solution is non-conducting towards an electric current. Solvent A must be: w) polar x) non-polar y) organic z) more acidic than HCl
Last Answer : ANSWER: X -- NON-POLAR
Description : When CO2 (carbon dioxide) is dissolved in water, i yields a solution that: a) has acidic properties b) has basic properties c) is neutral
Last Answer : ANSWER: A -- HAS ACIDIC PROPERTIES
Description : A solution is (1) a homogeneous mixture of two or more substances (2) a solid dissolved in a liquid (3) a solid dissolved i water (4) a mixture of two liquids
Last Answer : a homogeneous mixture of two or more substances
Description : A mid-term poll is conducted when – (1) the Lok Sabha is dissolved before completion of its term (2) an elected member resigns from his seat (3) there are discrepancies in voting (4) all MP's of a political party resign
Last Answer : (1) the Lok Sabha is dissolved before completion of its term Explanation: A midterm election refers to a type of staggered election where the members take office at the middle of the term of ... Normally, the pre-mature dissolution of the Lok Sabha or the State Assemblies calls for such elections.
Description : The Lok -Sabha can be dissolved before the expiry of its normal five year term by - (1) The Prime Minister (2) The Speaker of Lok Sabha (3) The President on the recommendation of the Prime Minister (4) None of the above
Last Answer : (3) The President on the recommendation of the Prime Minister Explanation: The Lok Sabha may be dissolved before the expiry of its term by the President on the advice of the Prime Minister. During ... time. The new Lok Sabha must be elected within six months after the national emergency is lifted.
Description : (2) amount of oxygen used for biochemical oxidation Explanation: Biochemical oxygen demand or B.O.D. is the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to ... quantitative test, although it is widely used as an indication of the organic quality of water.
Last Answer : The addition of gypsum to port-land cement helps in : (1) increasing the strength of cement (2) rapid setting of cement (3) preventing rapid setting of cement (4) reduction in the cost of cement
Description : The Lok - Sabha can be dissolved before the expiry of its normal five year term by: (A) The Prime Minister (B) The Speaker of Lok Sabha (C) The President on the recommendation of the Prime Minister (D) None of the above
Last Answer : Answer: C
Description : What sentence best describes a cell that that isotonic for substance?
Last Answer : The solute concentration is equal on both sides of the cellmembrane.
Description : What describes a chemical property of a substance?
Last Answer : A chemical property involve a chemical reaction.
Description : Which of these best describes temperature of a substance?
Last Answer : average kinetic energy
Description : Which of the following statements accurately describes a risk factor for depression? a) History of physical or sexual abuse History of physical or sexual abuse and current substance abuse are risk ... years. d) Negative family history of depression Family history of depression is a risk factor.
Last Answer : a) History of physical or sexual abuse History of physical or sexual abuse and current substance abuse are risk factors for depression.
Description : What is the word that describes a substance that reacts with both strong acids and strong bases?
Last Answer : ANSWER: AMPHOTERIC
Description : Which of the following statements correctly describes Hitler's final Solution? -History 9th
Last Answer : laws to end Jewish influence in government and school as well as in society because he believes that world war 1 Germany defeated because of Jewish people therefore tere is no reason to Jewish to live taht's why Hitler do this
Description : which of the following best describes a solution that contains a buffer?
Last Answer : A citric acid is added to the solution but the pH of the solution does not change
Description : Which statement best describes the Software as a Service cloud delivery model? A. A virtual machine provisioned and provided from the cloud which allows the customer to deploy custom ... and run the application on the customer's own computers and simplifying maintenance and support.
Last Answer : An application delivered to the client from the cloud which eliminates the need to install and run the application on the customer's own computers and simplifying maintenance and support.
Description : What is the name of the process where a substance dissolves in a liquid to form a solution?
Last Answer : A: Dissolution.
Description : A solution of a substance ‘X’ is used for white washing. (i) Name the substance ‘X’ and write its formula. (ii) Write the reaction of the substance ‘X’ named in (i) above with water. -Chemistry-10
Last Answer : (i) The substance whose solution in water is used for white washing is calcium oxide (or quick lime). Its formula is CaO.
Description : 13.a) What is solute and solvent in aerated drinks? b) Given a solution of substance 'A' how will you test whether it is saturated or unsaturated with respect to 'A' at the given temperature. -Chemistry
Last Answer : (a) No solute and solvent is available in aerated drinks. (b) in the given solution add small amount of solute A, if A dissolved a daydream a transparent solution is formed then it is an unsaturated solution and if A doesn't dissolved and a precipitate is formed then it's a saturated solution
Description : A solution is said to be _______ if it cannot dissolve more of the substance in it. -Science
Last Answer : When a solution reaches the point where it cannot dissolve any more solute it is considered "saturated." If a saturated solution loses some solvent, then solid crystals of the solute will start to form
Description : To prepare a standard solution of a substance, what is generally used ? -Do You Know?
Last Answer : answer:
Description : which. orange juice is a solution that contains citric acid, which gives orange juice an approximate pH of 3.5. Which substance is more acidic than orange juice?
Last Answer : battery acid with a pH of 0.8
Description : what is the difference between a mixture ,a solution ,and pure substance
Last Answer : Need Answer