zn+2hcl=zncl2+h2

527 results, page 2

Chemistry

A 0.4584 g sample of impure zinc chloride, ZnCl2, FW = 136.3 g/mole, was dissolved in water and excess silver nitrate was added to the solution. The mass of the dry silver chloride, AgCl, FW = 143.3 g/mole, produced was 0.8564 g. The balanced precipitation is: ZnCl2 (aq) + 2 ...

chemistry

A mixture of CaCO3 and MgCO3 weighing 7.85 g was reacted with excess HCL. The reactions are CaCO3+2HCL=CaCl2+H2O+CO2 and MgCO3+2HCl=MgCl2+H2O+CO2. The sample reacted completely to produce 1.94 L CO2 at 25 degrees C and 785 torr. Calculate the percentage of CaCO3 and MgCO3 in ...

Chemistry

I have two substances potassium sulfate and potassium carbonate. They are unlabelled and I need to know which one is which. If I add HCl to each substance ie K2SO4(s) + 2HCl(aq)-->2KCl(aq) + H2SO4(aq) K2CO3(s) + 2HCl(aq)--> 2KCl(aq) + H2O(l) + CO2(g) What would I observe...

Chemistry

What is the voltage for CuCl2 + Zn ZnCl2 + Cu?

Chemistry

I'm about to do the second part of a Limiting Reagent laboratory tomorrow. There are a few questions that are giving me trouble on the pre-lab assignment. In the first lab period, we measured the amount of H2 gas produced in a reaction of Mg and 10 mL of 2.0 M HCl. We varied ...

science

How many atoms are in Zinc Chloride, ZnCl2?

Chemistry

Zn(s)+HCl(aq)--> ZnCl2(aq)+H2(g) net ionic??

Chemistry

Identify the chemical reactants in ZnCl2(aq)+H2(g)?

chem.

If 130.0 g Zn reacts, what mass of ZnCL2 are produced?

chemistry

What mass of ZnCl2 is needed to make 4 L of 1.8 M solution?

chemistry

What is the mass of 4.54 10-2 moles of zinc chloride (ZnCl2)?

chemistry

calculate the number of moles in this quantity: 52.5 mg ZnCl2=?

Chem

What is the oxidation half-reaction for Mg(s)+ZnCL2(aq)>MgCL2(aq)+Zn(s)?

CHEMISTRY HELP !!!!

find kb or ka value for ZnCl2 show work! Thanks!

chemistry

What is the mass of 4.80 multiplied by 10-2 moles of zinc chloride (ZnCl2)?

Honors Chemistry (stoichiometry)

Can someone check and make sure I'm doing these problems right? Thanks so much!! 1. N2 + 3H2 ==> 2NH3 : How many moles of hydrogen are needed to completely react with two moles of nitrogen? ==> I got 6 moles. 3. Zn + 2HCl ==> ZnCl2 + H2 : How many moles of hydrogen ...

Chemistry

Can someone help me balance this equation ZnCl2 + (NH4)2S ------- NH4Cl + ZnS

CHEM

How do I work the following question? I found the amu of CaCO3=101.0872g/mol; 2HCL=72.92128g/mol; H2O=18.1582g/mol;CO2=44.0098g/mol; and, CaCl2=110.9834g/mol. You carefully weigh out 10.00g of powder and add it to 40.50g of solution. You notice bubbles as a reaction takes ...

NEED HELP!

A mixture contained CaCO3 and MgCo3. A sample of this mixture weighing 7.85g was reacted with excess HCl. The reactions are-- CaCO3 + 2HCl --> CaCl2 + H2O + CO2 MgCO3 + 2HCl --> MgCl2 + H2O + CO2 Is the sample reacted completely and produced 1.94L of CO2, at 25 degrees C...

chemistry help!

A mixture contained CaCO3 and MgCo3. A sample of this mixture weighing 7.85g was reacted with excess HCl. The reactions are-- CaCO3 + 2HCl --> CaCl2 + H2O + CO2 MgCO3 + 2HCl --> MgCl2 + H2O + CO2 Is the sample reacted completely and produced 1.94L of CO2, at 25 degrees C...

Chemistry

Zn(s) + 2 HCl(aq) H2(g) + ZnCl2(aq) When 25.0 g of Zn reacts, how many L of H2 gas are formed at STP? 1. 0.382 L 2. 0.0171 L 3. 22.4 L 4. 8.56 L 5. 4.28 L

organic biochemistry

Calculate the number of moles of ZnCl2, in 100. mL of 0.600M solution.

Chemistry

Mg(s) + 2HCl(aq) -> MgCl2(aq) + H2(g) delta H1? MgO(s) + 2HCl(aq) ->MgCl2(aq) + H2O(l) delta H2? To make these equations add up to the formation reaction of MgO, you will need to include the following: H2(g) + 1/2O2(l) delta H =-241.8 kJ Using Hess's Law and manipulating...

Chemistry

Zinc - .5 grams HCl- .2 moles Find the Mass of ZnCl2 [How would you solve this?]

chemistry

what mass of zinc chloride, zncl2 is required to prepare 5.00l of a 0.450 molar solution

Chemistry

Zn|ZnCl2(0.00165 M)||CuSO4(0.0125 M)|Cu Find Ecell taking activities into account.

chemistry

calculate the solubility of SrSO4 in A: pure water B: 0.045 M Sr(NO3)2 C: 0.05 M NaCl D: 0.016 M ZnCl2

Chemistry

Zn + 2 HCl = H2 + ZnCl2 / When 25.0 g of Zn reacts, how many L of H2 gas are formed at 25 degrees Celsius and a pressure of 854 mmHg?

chemistry

Zn is less active than Mg. Write the equations describing what occurs when ou mix: a)Zn with 0.5M magnesium chloride, MgCl2 b)Mg with 0.5M ZnCl2

chemistry

Silver chloride, AgCl, would be least soluble in A.1.0M HCl B.1.0M NaNO3 C.1.0M ZnCl2 D.1.0M AgNO3 and why? thx

Organic Chemistry

how many grams of ZnCl2 are needed to prepare 250 ml of an aqueous solution with an osmolarity equal to 0.300?

chemistry

A student used 3.27g of Zn to react with excess HCl and obtains 6.47g ZnCl2. What is the percent yield?

chemistry

H2(g)+Cl2<--->2HCl(g)+184kj

chimistary

mg(oH)2(s)+2hcl(g)_Mgcl2(s)+2h2o(g)

Chemistry

Equal volumes of 0.240 M AgNO3 and 0.140 M ZnCl2 solution are mixed. Calculate the quilibrium concentrations of Ag+, and Zn2+.

Chemistry

In the classroom, we reacted Mg(s) + 2HCl -> MgCl2(aq) + H2 (g) (0.31 g of Mg(s), and 99.46 g of HCl) Initial temp. = 22.5 celsius, max. temp. 36.0 celsius and MgO(s) + 2HCl -> MgCl2(aq) + H2(g) (1.00 g of MgO(s) and 97.71 g of HCl) Initial temp. 22.0 celsius, max. temp...

chemistry

How many moles of H2 are in a beaker of 60ml of 2HCL?

chemistry

difference between 2hcl and hcl

Chemistry

How much Zn is mixed with 2HCl = ZnCl + H2 ?

chemistry

how can i Specify what ions are present in solution upon dissolving each of the following substances in water: ZnCl2, HNO3, (NH4)2SO4,Ca(OH)2

General Chemistry

A 0.1358g zinc metal reacts completely with Dil HCL to produce 52.20ml of H2(g) at 22.0 degrees Celsius. The hydrogen gas is collected over water at 22.0 degree Celsius and a barometric pressure of 755 mm Hg. The water vapor pressure at 22.0 degrees Celsius is 19.8 mm Hg and ...

Physical Science

5. What reactions occurs when a solution of hydrochloric acid, HCl, is mixed with a solution of calcium hydroxide, Ca(OH)2? (A) Cl + Ca(OH) --> HCa + Cl(OH)2 (B) HCl + Ca(OH)2 --> H(OH)2 + CaCl (C) 2HCl + Ca(OH)2 --> 2H2O + CaCl2 (D) 2HCl + Ca(OH)2 --> H2Ca + 2ClOH...

Chemistry

What are the names of the reactants in this equation? Mg (s) + 2HCl (aq) --> MgCl2 (aq) +H2 (g)

chemistry

What is the molarity of ZnCl2 that forms when 19.0 g of zinc completely reacts with CuCl2 according to the following reaction? (Assume a final volume of 195 .)

Chemistry (identifying equations)

What type of reactions are these? Acid-base? Oxidation/Reduction? Precipitation? 1) Zn (s) + 2 HCl (aq) -> ZnCl2 (aq) + H2 (g) 2) Fe (s) + CuSO4 (aq) -> FeSO4 (aq) + Cu (s) 3) Fe (s) + Cu(NO)2 (aq) -> Fe(NO3)2 (aq) + Cu(s)

chemistry

The equation Mg(s) 2HCl(aq)---MgCl2 (aq) H2(g) is an example of which type of reaction?

CHEMISTRY HELP !!!!

NH4CL , ZNCL2 , KAL(SO4)2 FIND THE FOLLOWING NET IONIC EQUATION FOR HYDROLYSIS EXPRESSION FOR EQUILIBRIUM CONSTANT (KA OR KB) VALUE THANK YOU SO MUCH!!!

Chemistry

Zn + HCl --> ZnCl2 + H2 If 18 grams of Zn are used in the following reaction, how many grams of H2 will be produced?

Chemistry

COMPLETION AND BALANCING OF EQUATIONS Complete and balance the following equations: 1. ZnCl2 + AgNO3

Chemistry

COMPLETION AND BALANCING OF EQUATIONS Complete and balance the following equations: 1. ZnCl2 + AgNO3

chemistry

I need help Calculating the mass of HCL neede to react with 20.0 grams Zn. Zn+HCL -> ZnCl2+H2

physical science

what are the uses of CaCo3+2HCl=CaCl2+CO2+H2O?

chemistry

Mg(OH)2 + 2HCl = MgCl2 + 2H2O if 33.5g of Mg(OH)2 react, what mass of H2O could be produced

Science

mg +2Hcl --MgCl2. + h2 Calculate minimum volume of 0.1ml\L Please help

Science

mg +2Hcl --MgCl2. + h2 Calculate minimum volume of 0.1ml\L Please help

Chemistry

What is the oxidized substance in the following reaction? Fe + 2HCl → FeCl2 + H2

science

Calculate the molarity of a solution that contains 0.175 mol ZnCl2 in exactly 136 mL of solution.

CHEMISTRY

HOW MANY MOLES OF HCL ARE REQUIRED TO PRODUCE 4.50 MOLES OF ZnCL2?

chemistry help~Please!!!

What are the Ka and/or Kb value for 1M ZnCl2 Show work please!!!

Chemistry

Order the following solids according to increasing lattice energy. HgI2, CdCl2, ZnCl2 Now I get how to sort of do it, but I do not get how to do it if I'm looking at its radius if they do not provide it in the question.

Chemistry

If you are asked to make exactly 1.0 Liter of 0.80 M ZnCl2 solution, how many grams of zinc chloride would you need to be massed out? How do I go about solving this problem?

Chemistry

Question 9 Marks: 2 In the reaction: Zn + 2 HCl ZnCl2 + H2 An excess of Zn is reacted with 300.0 g of HCl. How many grams of H2 will be produced?

chem

write the ionic equation and the net ionic equations. 1.AgNO3 and K2S 2.ZnCl2 and Na2SO4 3.CuCl2 and Li3PO4

Chem

Find pH. A) 0.10M Zn(OH)4^-2 F) Zn(OH)2 in 0.010M ZnCl2 Q) 0.010 M Zn(NH3)4^+2 hint: fined [NH3] then kb for OH^- Im having trouble with these can someone help me.

Chemistry

Identify the species oxidized and the species reduced in each of these redox equations A. 3Br2 + 2Ga -> 2GaBr3 B. HCL + Zn -> ZnCl2 + H2 C. Mg + N2 -> Mg3N2

chem

what is the balanced equation for aqueous zinc chloride and aqueous sodium chromate? Is it, ZnCl2+NaCrO4-->ZnCrO4+NaCl2 and how do I know if it is reactive or not?

10th grade

what chemicals are being added together in the chemical equation of 2HCL + Ca -> CaCl2 + H2

chemistry

What is Delta H rxn for the following chemical reaction? H2O(l) + CCl4(l)-> COCl2(g) + 2HCl(g)

chemistry

from Balanced CaCO3+2HCL-CaCL2+H2O+CO2 and 7.2*10^-3 L Calculate moles titrated

chemistry

in the equation mg+2hcl-->mgcl2+h2, what mass of the hcl is consumed by the reaction of 2.50 mol of magnesium

Chemistry

2HCl+Pb(NO3)2---> PbCl2 (s)+2HNO3 Can you please tell why this is not an acid base reaction?

Chemistry

Which one of the following combinations of reagents will result in a spontaneous reaction? A) Al(s) + CuCl2(aq) B) Al(s) + CaCl2(aq) C) Zn(s) + CaCl2(aq) D) Cu(s) + ZnCl2(aq) I know the answer is A, but what I don't know is why, or how to figure this out. Thanks!

chemistry please help!!!!!!!!!!!!!!!!!!!!!!

How many molecules of hydrogen are produced if 13.05 g of Zn reacts with excess hydrochloric acid equation Zn plus HCL equals ZnCl2 plus H2?

chemistry please help!

How many molecules of hydrogen are produced if 13.05 g of Zn reacts with excess hydrochloric acid equation Zn plus HCL equals ZnCl2 plus H2?

Chemistry

Given the reaction below, and your knowledge of the "Law of Conservation of Mass", what is the missing product from the chemical reaction? How do you know? Zn(s) + HCl(aq) --> ___ + ZnCl2(aq)

chemistry 1

if 20.2g of zn react with and equal amount of magnesium chloride to form magnesium and zinc chloride[zn+mgcl2> mg+zncl2] a.what is the limiting reactant? b. how much magnesium will be produced? Here is the way to solve most of these stoichiometry problems. Step 1. Write the...

chemistry!!! /10th grade

How many molecules of hydrogen are produced if 13.05 g of Zn reacts with excess hydrochloric acid equation Zn plus HCL equals ZnCl2 plus H2?

chem

How many grams of zinc metal will react completely with 8.2 liters of 3.5 M HCl? Show all of the work needed to solve this problem. Zn (s) + 2 HCl (aq) ZnCl2 (aq) + H2 (g)

Chemistry

Given: Mg + 2HCl --> H2 + MgCl2 0.250 g of magnesium reacts with 10.00 mL of 1.5 M HCl. What volume (in mL) of H2 gas is produced?

chemistry.

What amount of H2(g) is produced when 12g of magnesium reacts completely with dilute HCl(aq) Mg(s) + 2HCl(aq)________MgCl2(aq) + H2(G)

Chemistry

What is the minimum amount of 1.75 m of HCL necessary to produce 28.5 L of H2 at stp? EQUATION IS AS FOLLOWS: Mg+2HCL->>MgCl2+H2

chemistry

Using the balanced equation, Mg + 2HCl= H2 + MgCl2, calculate the amount of MG need to react with 25 mL of 6 M HCl.

Chemistry

Mg +2HCL = MgCl2 +H2 what mass of hydrogen is obtained by adding excess hydrochloric acid to 6g of magnesium

Chemistry

How many grams of dichloromethane result from reaction of 2.62 kg of methane if the yield is 43.5 %? CH4+2Cl -> CH2Cl2+2HCl

Chemisty

Calculate the standard enthalpy change for the following reaction at 25 °C. MgCl2(s)+H2O(l)-->MgO(s)+2HCl

Chemistry

Calculate the standard enthalpy change for the following reaction at 25 °C. MgCl2(s) + H2o(l) ---> MgO(s) + 2HCl(g)

chemistry

Current is applied to a molten mixture of CuF, ZnCl2, and AlBr3. What is produced at the cathode? a)F2 b)Al c)Cu d)Zn e)Cl2 f)Br2 What is produced at the anode? Same options as above.

chemistry

How many milliliters of a 0.5 molar HCl solution are needed to react completely with 11 grams of zinc according to the following equation? ? HCl + ? Zn ! ? ZnCl2 + ? H2 Answer in units of mL

chemistry

consider the following reaction: Mg(s)+ 2HCl(aq) --> MgCl2 (aq)+H2 (g) What minimum amount of 1.75 M HCl is necessary to produce 27.5 L of H2 at STP?

CHEMISTRYYY

consider the following reaction: Mg(s)+ 2HCl(aq) --> MgCl2 (aq)+H2 (g) What minimum amount of 1.75 M HCl is necessary to produce 27.5 L of H2 at STP?

Chemistry

Determine how many milliliters of 0.448 M HClO4 will be required to neutralize 38.30 g Ca(OH)2 according to the reaction: 2HCl+Ca(ClO4)2+2H20

Chemistry

given the equation Mg +2HCL --> MgCL2+H2, how many moles of hydrochloric acid are needed to react with O.50 mol of magnesium ? (1)0.5 (2)1.0 (3)2.0 (4)4.0 is it 3 ?

Chemistry

Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g) If 1.0g of Mg is reacted with 10.0mL of 6.0M HCl, what volume of hydrogen gas will be produced at 298K & 1atm?

chemistry

How many grams of HCl must be used to produce 10.0L of chlorine gas at STP? Reaction: 2HCl (g)--->H2 (g)+Cl2 (g)

chemistry

What Volume of 0.575M HCl will neutralize 4.22g of Mg(OH)2? I got the BRE of 2HCl + 1Mg(OH)2 ---> 1MgCl2 + H2O, what do i do from there?

chemistry

In the reaction Mg(s) + 2HCl(aq) d H¿(g) + MgCl¿(aq), how many moles of hydrogen gas will be produced from 250.0 milliliters of a 3.0 M HCl in an excess of Mg?

chemistry

In the reaction Mg (s) + 2HCl (aq) H2 (g) + MgCl2 (aq), how many liters of hydrogen gas will be produced from 75.0 milliliters of a 3.0 M HCl in an excess of Mg at STP?

chemistry

If 35.0 mL of 0.210 M HCl reacts with excess Mg, how many mL of hydrogen gas are produced at STP? Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)

college chemistry

How many gram of Zn would be necessary to produce 534 grams of Fe by the sequence of reactions shown below? Step 1 Zn + HCl ==> ZnCl2 + H2 Step 2 Fe2O3 + H2 ==> Fe + H2O

chemistry

How many milliliters of a 0.5 molar HCl solution are needed to react completely with 15 grams of zinc according to the following equation? ? HCl+? Zn→? ZnCl2 +? H2 Answer in units of mL

Pages

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6