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3h

Law of Conservation of Mass Word Problem

If 19.2g O2 react with Fe, how much Fe in grams were used given the following equation: 4Fe + 3O2 = 2Fe2O3? Is this even a physical science question???

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Chemistry

3h

Limiting Reactants

For this reaction, 35.1 g bromine reacts with 13.6 g chlorine gas.bromine (g) + chlorine (g) bromine monochloride (g)What is the maximum mass of bromine monochloride that can be formed? What is... more

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Chemistry

7h

what is the molarity where 3.21g of CaCl2 is in a 0.5 L solution

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Chemistry

8h

chemistry sapling homework

What is the number of formula units in a 7.12 mol sample of FeCl3?

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Chemistry

20h

Balance and label the oxidation state of each element in each reaction.

Oxidation: Zn --> Zn2+ + 2e-Reduction: As2O3 + 12e- + 6H+ --> 2As3- + 3H2OReactions:As2O3 + 6Zn + 6H+ --> 2As3- + 6Zn2+ 3H2OAs2O3 + 6Zn + 6H2SO --> 2AsH3 + 6ZnSO4 + 3H20

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Chemistry

20h

Chemistry chem chem chem..!1

What volume of a 6.0M solution of NaOH would be required to neutralize 135.0mL of a 0.50M solution of HCI?

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Chemistry

20h

Chemistry chemi$try

200.0L of a solution of H2SO4 of an unknown concentration is titrated with a 2.4-M solution of KOH. If it takes 124mL of KOH to reach the endpoint, what is the concentration of H2SO4?

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Chemistry

20h

CHEMISTRY CHE,M CHEM

How much of a 1.4 M solution of NaOH will neutralize 250.0mL OF HNO3 with a molarity of 3.5M?

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Chemistry

20h

Chemistry chem chem

What volume of 1.5-M solution of HCI would be required to neutralize 315.0mL of a 0.85M solution of Ca(OH)2?

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Chemistry

20h

Theoretical Yield

The theoretical yield of a reaction is the amount of product obtained if the limiting reactant is completely converted to product.Consider the reaction:C(s) + O2(g) → CO2(g)If 15.51 g C is mixed... more

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Chemistry

23h

In the balanced equation, N2 + 3H2 = 2NH3, If 4.0 moles of H2 react, how many moles of NH3 can be produced?

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Chemistry

1d

What is the heat q required to melt 10 grams of ice?

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History Chemistry

1d

Who is credited with the invention of the modern periodic table?

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Chemistry

1d

Chemistry molarity question??

Chem hw..help pleaseA solution is prepared by dissolving 55.5g of CaCl2 in 300g of water. The density of the resulting solution is 1.05g/mL. The concentration of CaCl2 in this solution is... more

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Chemistry

1d

Reverting a total chlorine residual with ammonia present, to a free residual with no ammonia present in drinking water

In a drinking water holding tank of 438k gallons, and a total combined residual of a 3.00 mg/l, with a 0.14 mg/l of free available ammonia, how many lbs of 100% chlorine gas would it take to revert... more

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Chemistry Organic Chemistry

1d

What are the examples of environmental chemistry?

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Chemistry Chemistry 115

1d

What rearranges molecules, but doesn't affect their internal structures?

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Chemistry Organic Chemistry

1d

What are the examples of environmental chemistry?

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Chemistry

1d

Is there a way to reverse the hardened cement to its original composition?

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Chemistry

1d

What would happen if you stuck your hand in liquid nitrogen and then put it into molten lead?

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Chemistry Chemical Engineering

1d

What is film theory in mass transfer?

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Chemistry

1d

6.92 grams of chlorine gas are mixed with excess iron. The reaction yields 8.50 grams of iron(iii)chlorine. What is the theoretical yield of iron(iii) chlorine?

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Chemistry

1d

Chem hw..help please

A solution is prepared by dissolving of CaCl2 in 300g of water. The density of the resulting solution is 1.05g/mL. The concentration of CaCl2 in this solution is ____molar.Answer: 1.48why??

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Science Chemistry Kj

1d

Trigonemetry-Finding heat lost and absorbed

You place a bottle containing 1.5 Liters of mineral water at 30*C into a refrigerator to cool to 6*C. How many kJ of heat are lost by the water? q=1500 g*C *24*C This is how far I've gotten and... more

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Chemistry World History Anthropology

1d

Are there any scientific achievements by ancient civilizations that baffle scientists today?

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chemistry

Law of Conservation of Mass Word Problem

Limiting Reactants

what is the molarity where 3.21g of CaCl2 is in a 0.5 L solution

chemistry sapling homework

Balance and label the oxidation state of each element in each reaction.

Chemistry chem chem chem..!1

Chemistry chemi$try

CHEMISTRY CHE,M CHEM

Chemistry chem chem

Theoretical Yield

In the balanced equation, N2 + 3H2 = 2NH3, If 4.0 moles of H2 react, how many moles of NH3 can be produced?

What is the heat q required to melt 10 grams of ice?

Who is credited with the invention of the modern periodic table?

Chemistry molarity question??

Reverting a total chlorine residual with ammonia present, to a free residual with no ammonia present in drinking water

What are the examples of environmental chemistry?

What rearranges molecules, but doesn't affect their internal structures?

What are the examples of environmental chemistry?

Is there a way to reverse the hardened cement to its original composition?

What would happen if you stuck your hand in liquid nitrogen and then put it into molten lead?

What is film theory in mass transfer?

6.92 grams of chlorine gas are mixed with excess iron. The reaction yields 8.50 grams of iron(iii)chlorine. What is the theoretical yield of iron(iii) chlorine?

Chem hw..help please

Trigonemetry-Finding heat lost and absorbed

Are there any scientific achievements by ancient civilizations that baffle scientists today?

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