Stalactites and Stalagmites form due to the precipitation of : (1) CaCO3 (2) CaCl2 (3) MgCl2 (4) MgCO3

Stalactites and Stalagmites form due to the precipitation of : (1) CaCO3 (2) CaCl2 (3) MgCl2 (4) MgCO3
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(1) CaCO3 Explanation: Stalactites and stalagmites are formed by water dripping or flowing from fractures on the ceiling of a cave. The dominant mineral in them is calcite (calcium carbonate) or CaCaO3. Their largest displays are formed in caves of limestone and dolomite. Other minerals that may be deposited include other carbonates, opal, chalcedony, limonite, and some sulfides.
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Stalactites and Stalagmites form due to the precipitation of : (1) CaCO3 (2) CaCl2 (3) MgCl2 (4) MgCO3

Description : Stalactites and Stalagmites form due to the precipitation of : (1) CaCO3 (2) CaCl2 (3) MgCl2 (4) MgCO3

Last Answer : CaCO3

One of the following is not the result of underground water action – (1) Stalactites (2) Stalagmites (3) Sink holes (4) Fiords

Description : One of the following is not the result of underground water action – (1) Stalactites (2) Stalagmites (3) Sink holes (4) Fiords

Last Answer : (4) Fiords Explanation: Geologically, a fjord is a long, narrow inlet with steep sides or cliffs, created in a valley carved by glacial activity. A fjord is formed when a glacier cuts a U- ... eroded sediment is removed. Both the whole coast of Norway and the island of Greenland have many fjords.

Which one of the following is not the result of underground water action? (1) Stalactites (2) Stalagmites (3) Sinkholes (4) Fiords

Description : Which one of the following is not the result of underground water action? (1) Stalactites (2) Stalagmites (3) Sinkholes (4) Fiords

Last Answer : (4) Fiords Explanation: Geologically, a ford is a long, narrow inlet with steep sides or cliffs, created in a valley carved by glacial activity. A fjord is formed when a glacier cuts a U-shaped valley by ice segregation and abrasion of the surrounding bedrock.

Which one of the following is not the result of underground water action? (1) Stalactites (2) Stalagmites (3) Sinkholes (4) Fiords

Description : Which one of the following is not the result of underground water action? (1) Stalactites (2) Stalagmites (3) Sinkholes (4) Fiords

Last Answer : Fiords

One of the following is not the result of underground water action (1) Stalactites (2) Stalagmites (3) Sink holes (4) Fiords

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Main constituent of dolomite is (A) CaCO3 (B) MgCO3 (C) K2CO3 (D) Na2CO3

Description : Main constituent of dolomite is (A) CaCO3 (B) MgCO3 (C) K2CO3 (D) Na2CO3

Last Answer : (B) MgCO3

Main constituent of limestone is (A) CaCO3 (B) MgCO3 (C) Na2CO3 (D) CaSO4

Description : Main constituent of limestone is (A) CaCO3 (B) MgCO3 (C) Na2CO3 (D) CaSO4

Last Answer : (A) CaCO3

Artificial transformation in laboratory is carried out by treating the cells with a. MgCl2 b. Cacl2 c. NaCl d. HCl

Description : Artificial transformation in laboratory is carried out by treating the cells with a. MgCl2 b. Cacl2 c. NaCl d. HCl

Last Answer : Ans: B

Which of the following is not responsible for causing permanent hardness of water? (A) Ca(HCO3 )2 (B) CaCl2 (C) MgCl2(D) None of these

Description : Which of the following is not responsible for causing permanent hardness of water? (A) Ca(HCO3 )2 (B) CaCl2 (C) Mgcl2 (D) None of these

Last Answer : (A) Ca(HCO3 )2

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Description : The main constituent of bones is (A) CaF2 (B) Ca3(PO4)2 (C) CaCO3 (D) CaCl2

Last Answer : (B) Ca3(PO4)2

If there is one million Mg2+ ions in MgCl2, how many chloride ions are there? (1) Two million (2) One million (3) Half a million (4) Ten million

Description : If there is one million Mg2+ ions in MgCl2, how many chloride ions are there? (1) Two million (2) One million (3) Half a million (4) Ten million

Last Answer : (1) Two million

What does a reaction between MgCO3 and NH4Br form?

Description : What does a reaction between MgCO3 and NH4Br form?

Last Answer : Magnesium carbonate is not soluble in water.

What helps you tell the difference between stalagtites and stalagmites?

Description : What helps you tell the difference between stalagtites and stalagmites?

Last Answer : I always thought it was stalactite with a c and that meant it was from the ceiling. Stalagmite with a g meant it was from the ground. At least that was my way to rember it.

Do stalactites grow upwards or downwards?

Description : Do stalactites grow upwards or downwards?

Last Answer : Downwards

(a) State and explain Kohlrausch law. (b) How much electricity in terms of Faradays is required to produce 20 g of calcium from molten CaCl2? -Chemistry

Description : (a) State and explain Kohlrausch law. (b) How much electricity in terms of Faradays is required to produce 20 g of calcium from molten CaCl2? -Chemistry

Last Answer : a) Corrosion is an electrochemical phenomenon. At a particular spot of iron j oxidation it takes place and the spot behaves j as anode and the reaction will be: i At anode : 2Fe(s) → 2Fe2+ + 4e- Electrons ... Ca i.e. 40 g of Ca requires electricity = 2F ∴ 20 g of Ca will require electricity = 1F

Methanol cannot be dried with anhydrous CaCl2 because - (1) CaCl2 dissolves in it (2) it is not good dehydrating agent (3) it forms a solid CaCl2 × 4CH3OH (4) it reacts with CH3OH

Description : Methanol cannot be dried with anhydrous CaCl2 because - (1) CaCl2 dissolves in it (2) it is not good dehydrating agent (3) it forms a solid CaCl2 × 4CH3OH (4) it reacts with CH3OH

Last Answer : (3) it forms a solid CaCl2 × 4CH3OH

Out of (a) 1 M CaCl2 (b) 1 M AlCl3 which aqueous soln. will show max. vapour pressure at 300 K ?

Description : Out of (a) 1 M CaCl2 (b) 1 M AlCl3 which aqueous soln. will show max. vapour pressure at 300 K ?

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Give reasons : (a) Window glass of old building look milky. b) Window glass of old building is thick at bottom. (c) CaCl2 will introduce Schottky defect if added to AgCl crystal.

Description : Give reasons : (a) Window glass of old building look milky. b) Window glass of old building is thick at bottom. (c) CaCl2  will introduce Schottky defect if added to AgCl crystal.

Last Answer : (a) Due to annealing over a number of years glass acquires some crystalline character. (b) Glass is not a true solid. But a super-cooled liquid of high viscosity. It has the property to ... to maintain electrical neutrality. Thus a hole is created and lattice site for every Ca2+ ion introduced. 

The compound which would have the greatest molar effect on the colligative properties of a dilute solution would be: w) CaCl2 x) NaCl y) C6H12O6 z) Benzene

Description : The compound which would have the greatest molar effect on the colligative properties of a dilute solution would be: w) CaCl2 x) NaCl y) C6H12O6 z) Benzene

Last Answer : ANSWER: W -- CaCl2

Calcium acetate on strong heating gives (a) Methane + CaCO3 (b) Ethane + CaCO3 (c) Acetone + CaCO3 (d) Ethane + CaO

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Last Answer : Acetone + CaCO3

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Description : Mgco3 + hcl = What will happen ?

Last Answer : MgCO₃ + HCl → MgCl₂ + CO₂ + H₂O

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Last Answer : d) Geothite- Fe2O3

Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of (A) MgO & Na2CO3 (B) MgSO4 & BaCl2 (C) BaSO4 & NaCl (D) MgCO3 & NaC

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Last Answer : (A) MgO & Na2CO3

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Last Answer : (B) CaC2 + H2O = Ca(OH)2 + C2H2

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Description : BeCl2 is covalent while MgCl2 is ionic.

Last Answer : Explain : BeCl2 is covalent while MgCl2 is ionic.

What kind of chemical reaction is shown Mg plus 2HCl-MgCl2 plus H2?

Description : What kind of chemical reaction is shown Mg plus 2HCl-MgCl2 plus H2?

Last Answer : Need answer

What kind of chemical reaction is shown Mg plus 2 HCl - mgCl2 plus H2?

Description : What kind of chemical reaction is shown Mg plus 2 HCl - mgCl2 plus H2?

Last Answer : Need answer

How many moles of MgCl2 are there in 313 g of the compound?

Description : How many moles of MgCl2 are there in 313 g of the compound?

Last Answer : Approx 3.29 moles.

Is MgCl2 is an ionic or compound?

Description : Is MgCl2 is an ionic or compound?

Last Answer : Magnesium chloride is an ionic compound.

How many grams make up 1.5 moles of MgCl2?

Description : How many grams make up 1.5 moles of MgCl2?

Last Answer : The molar mass (mass of 1 mole) of MgCl2 is 95.205 g/mol. To determine the mass of 1.5 mol MgCl2, multiply the moles by the molar mass.Molar mass MgCl2 = (1 x 24.305 g/mol Mg) + (2 x 35.45 ... mol MgCl21.5 mol MgCl2 x (95.205 g MgCl2)/(1 mol MgCl2) = 150 g MgCl2 (rounded to two significant figures)

What is the mass of 1.5 moles of MgCl2?

Description : What is the mass of 1.5 moles of MgCl2?

Last Answer : The molar mass (mass of 1 mole) of MgCl2 is 95.205 g/mol. To determine the mass of 1.5 mol MgCl2, multiply the moles by the molar mass.Molar mass MgCl2 = (1 x 24.305 g/mol Mg) + (2 x 35.45 ... mol MgCl21.5 mol MgCl2 x (95.205 g MgCl2)/(1 mol MgCl2) = 150 g MgCl2 (rounded to two significant figures)

Calculate the formula unit mass of NaCl and CaCl2. -Chemistry 9th

Description : Calculate the formula unit mass of NaCl and CaCl2. -Chemistry 9th

Last Answer : hii Here's your answer Molar mass of Na=23g/mol " " " Cl=35.5g/mol Formula unit mass of NaCl=23 + 35.5 = 58.5 gm per mole Molar mass of Ca=40g/mol Molar mass of Cl2= 35.5g/mol*2=70gm per mole F. U. M. = 40+70=110 gm per mole

What is the role of CaCl2 in the preparation of competent cells? -Biology

Description : What is the role of CaCl2 in the preparation of competent cells? -Biology

Last Answer : answer:

How many atoms are present in CaCl2?

Description : How many atoms are present in CaCl2?

Last Answer : There are three atoms in CaCl2 (calcium chloride) - one calcium atom and two chlorine atoms. It might be argued that there are ions inside the molecule instead of atoms. In that case there is one calcium ion and two chlorine ions.~credits to the original person who actually wrote this.

What is the complete ionic equation for the reaction between na2 So4 and cacl2?

Description : What is the complete ionic equation for the reaction between na2 So4 and cacl2?

Last Answer : Feel Free to Answer

How many grams of Cl are in 385 g of CaCl2?

Description : How many grams of Cl are in 385 g of CaCl2?

Last Answer : 246 g

Which of the following solvents is used for the extraction of H3PO4 from CaCl2 solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching? (A) Isopropyl alcohol (B) Butyl alcohol (C) Toluene (D) Hexane

Description : Which of the following solvents is used for the extraction of H3PO4 from CaCl2 solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching? (A) Isopropyl alcohol (B) Butyl alcohol (C) Toluene (D) Hexane

Last Answer : (B) Butyl alcohol

In the production of soda ash by Solvay process, the by-product is (A) CaCl2 (B) NH4Cl (C) NH3 (D) NaOH

Description : In the production of soda ash by Solvay process, the by-product is (A) CaCl2 (B) NH4Cl (C) NH3 (D) NaOH

Last Answer : (A) CaCl2

Ammonia gas can be dried by (A) PCl5 (B) Quick lime (C) CaCl2 (D) Concentrated H2SO4

Description : Ammonia gas can be dried by (A) PCl5 (B) Quick lime (C) CaCl2 (D) Concentrated H2SO4

Last Answer : (B) Quick lime

Calculate the mass of 6.022 × 1023 molecule of Calcium carbonate (CaCO3) -Chemistry 9th

Description : Calculate the mass of 6.022 × 1023 molecule of Calcium carbonate (CaCO3) -Chemistry 9th

Last Answer : Molar mass (Molecular mass in gram) of CaCO3 = 40+12+3×16 = 100 g No. of moles of CaCO3 = No. of molecules/Avogadro constant = 6.022 × 1023/ 6.022 × 1023 = 1 mole Mass of CaCO3 = No. of moles × molar mass = 1 × 100 g = 100 g

Find the mass of 0.5 moles of CaCO3 -Chemistry 9th

Description : Find the mass of 0.5 moles of CaCO3 -Chemistry 9th

Last Answer : 50 Grams Explaination : Molar mass of CaCO3 = 40(mass of Calcium ) + 12(mass of Carbon ) + 16(mass of Oxygen )*3 No of moles = Given mass / Molar mass 0.5 = Given mass / 100gm Mass = 100 x 0.5 = 50 gms

What are the spectator ions in the given balanced chemical equation CaCI2(aq) plus k2CO3(aq) CaCO3 (s) plus 2 KCI (aq)?

Description : What are the spectator ions in the given balanced chemical equation CaCI2(aq) plus k2CO3(aq) CaCO3 (s) plus 2 KCI (aq)?

Last Answer : Need answer

How many grams of LiOH is formed from 25.0 g of CaOH given the following equation... Ca(OH)2 plus Li2CO3 ----- and gt CaCO3 plus 2Li(OH) What is the answer and how did you get it?

Description : How many grams of LiOH is formed from 25.0 g of CaOH given the following equation... Ca(OH)2 plus Li2CO3 ----- and gt CaCO3 plus 2Li(OH) What is the answer and how did you get it?

Last Answer : The chemical reaction is:Li2CO3 + Ca(OH)2 = 2 LiOH + CaCO3Molar maass of LiOH is 23,95 g; molar mass of calcium hydroxide is 74,093 g.74,093 g Ca(OH)2----------------2.23,95 g LiOH25 g Ca(OH)2----------------------xx = (25 x 2 x 23,95)/74,093 = 16,2 g LiOH

Lime (CaCO3 ) is added to neutralize

Description : Lime (CaCO3 ) is added to neutralize

Last Answer : Ans. Acid soils

Raw materials for urea production are (A) CO2 and N2 (B) CO2 , H2 and N2 (C) NH3 and CO (D) HNO3 and CaCO3

Description : Raw materials for urea production are (A) CO2 and N2 (B) CO2 , H2 and N2 (C) NH3 and CO (D) HNO3 and CaCO3

Last Answer : (B) CO2 , H2 and N2

Considering the endothermic dissociation of CaCO3 in a closed vessel (CaCO3 ⇌ CaO + CO2 ), the pressure of CO2 increases, if (A) A catalyst is added (B) The temperature is increased (C) An inert gas is pumped keeping the temperature constant (D) None of these

Description : Considering the endothermic dissociation of CaCO3 in a closed vessel (CaCO3 ⇌ CaO + CO2 ), the pressure of CO2 increases, if (A) A catalyst is added (B) The temperature is increased (C) An inert gas is pumped keeping the temperature constant (D) None of these

Last Answer : (B) The temperature is increased

Calcination reaction of limestone (CaCO3 → CaO + CO2 ) goes to completion in the rotary kiln, because (A) CaO is not dissociated (B) CO2 escapes continuously (C) Of high calcination temperature (D) CaO is more stable than CaCO3

Description : Calcination reaction of limestone (CaCO3 → CaO + CO2 ) goes to completion in the rotary kiln, because (A) CaO is not dissociated (B) CO2 escapes continuously (C) Of high calcination temperature (D) CaO is more stable than CaCO3

Last Answer : (B) CO2 escapes continuously

In case of calcination of limestone, CaCO3 CaO + CO2 , the addition of more of CaO will result in __________ in the concentration of CO2 . (A) No change (B) Increase (C) Decrease (D) Unpredictable from the data

Description : In case of calcination of limestone, CaCO3 CaO + CO2 , the addition of more of CaO will result in __________ in the concentration of CO2 . (A) No change (B) Increase (C) Decrease (D) Unpredictable from the data

Last Answer : (A) No change

Pick out the endothermic reaction out of the following. (A) C+ ½O2 = CO (B) CO + 3H2 = CH4 + H2O (C) CaCO3 = CaO + CO2 (D) CO + ½O2 = CO2

Description : Pick out the endothermic reaction out of the following. (A) C+ ½O2 = CO (B) CO + 3H2 = CH4 + H2O (C) CaCO3 = CaO + CO2 (D) CO + ½O2 = CO2

Last Answer : (C) CaCO3 = CaO + CO2

Fat splitting catalyst is(A) CaCO3(B) ZnO(C) Al2O3(D) Fe

Description : Fat splitting catalyst is (A) CaCO3 (B) ZnO (C) Al2O3 (D) Fe

Last Answer : (B) ZnO