Unit 7 review

Front

What is the balanced equation for the reaction of iron(III) oxide with hydrogen?

Back

Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)

Front

How many moles of iron can be produced from 6 moles of hydrogen in the reaction Fe2O3 + 3H2 → 2Fe + 3H2O?

Back

4 moles Fe

Front

What is the first step in stoichiometry?

Back

Determine a balanced equation.

Front

How do you convert grams of a substance to moles?

Back

Use the formula: moles = grams / molar mass.

Front

What is the molar mass of NaCl?

Back

58.44 g/mol

Front

How many grams are in 7.8 moles of NaCl?

Back

452 grams

Front

What is the balanced equation for the reaction of aluminum with sulfuric acid?

Back

2Al + 3H2SO4 → Al2(SO4)3 + 3H2

Front

How many grams of aluminum sulfate are produced from 250g of H2SO4?

Back

290 g Al2(SO4)3

Front

What is the molar mass of B2H6?

Back

27.67 g/mol

Front

What mass of O2 is needed to burn 36.1 g of B2H6?

Back

124 g O2