Given the reaction: 6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂ What is the total number of grams of water needed to make 2.5 moles of C₆H₁₂O₆?

Given the reaction: Mg + 2 HCl → MgCl₂ + H₂ What is the total number of grams of Mg consumed when 0.50 mole of H₂ is produced?

Given the reaction: 4 Al + 3 O₂ → 2 Al₂O₃ What is the total number of moles of aluminum oxide that can be formed when 2.0 moles of aluminum reacts completely with oxygen?

A number written in front of a chemical formula is called a(n)

The blue numbers in the image below represent ________

What is a coefficient?

Given the balanced equation representing a reaction: CaO(s) + CO₂(g) → CaCO₃(s) + heat What is the total mass of CaO(s) that reacts completely with 88 grams of CO₂(g) to produce 200 grams of CaCO₃(s)?

Given the reaction: 2 H₂ + O₂ → 2 H₂O The total number of grams of O₂ needed to produce 3 moles of water is

Given the reaction: Mg + H₂SO₄ → MgSO₄ + H₂ How many grams of H₂SO₄ are needed to produce exactly 11.2 liters of H₂, measured at STP? (Hint:@ STP 1 mol of any gas occupies 22.4 L)

Given the reaction: 2 C₈H₁₈(g) + 25 O₂(g) → 16 CO₂(g) + 18 H₂O(g) What mass of C₈H₁₈(g) will completely react to produce exactly 1.6 moles of H₂O(g)?

Given the balanced equation: C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(g) What is the total number of liters of CO₂(g) produced when 20.0 liters of O₂(g) are completely consumed? (Hint:@ STP 1 mol of any gas occupies 22.4 L)

Given the balanced equation representing a reaction: 2H₂ + O₂ → 2H₂O What is the total mass of water formed when 8 grams of hydrogen reacts completely with 64 grams of oxygen?

N₂ +  3H₂ → 2NH₃ 
How many moles of hydrogen are needed to react with 2 moles of nitrogen?

2H₂   +   O₂  →  2H₂O
How many moles of water can be produced if 8 moles H₂ are used?

For the Balanced Reaction: 3 Mg + 1 Fe₂O₃ → 3 MgO + 2 Fe; What is the Ratio of moles of MgO to moles Fe?

Cl₂ + 2KBr → Br₂ + 2KCl
How many grams of potassium chloride (KCl) can be produced from 356 g of potassium bromide (KBr)?

What is the first thing you must do to solve a stoichiometry problem?

How many grams of aluminum sulfate would be formed if 250g H₂SO₄ completely reacted with aluminum?

AlCl₃ →2Al + 3Cl₂ lf 25.0 g of aluminum chloride are decomposed, how many molecules of Cl₂ are produced?

B₂H₆ + 3O₂ -->2 HBO₂ + 2 H₂O
 What mass of O₂ will be needed to burn 36.1 g of B₂H₆?

Given the reaction: @@ ext{C}_3 ext{H}_8 + 5 ext{O}_2 ightarrow 3 ext{CO}_2 + 4 ext{H}_2 ext{O} $$, how many moles of$$ ext{O}_2 $$are needed to completely react with 2 moles of$$ ext{C}_3 ext{H}_8@@?

In the reaction: @@ ext{2 Na} + ext{Cl}_2 ightarrow ext{2 NaCl} $$, what mass of$$ ext{NaCl} $$is produced when 23 grams of$$ ext{Na} $$completely reacts? (Molar mass of$$ ext{Na} = 23 ext{g/mol} $$,$$ ext{Cl} = 35.5 ext{g/mol}@@)

For the reaction: @@ ext{2 H}_2 + ext{O}_2 ightarrow ext{2 H}_2 ext{O} $$, how many grams of water are produced from 4 grams of hydrogen? (Molar mass of$$ ext{H}_2 = 2 ext{g/mol} $$,$$ ext{H}_2 ext{O} = 18 ext{g/mol}@@)

Given the balanced equation: @@ ext{N}_2 + 3 ext{H}_2 ightarrow 2 ext{NH}_3 $$, how many grams of$$ ext{NH}_3 $$are produced from 28 grams of$$ ext{N}_2 $$? (Molar mass of$$ ext{N}_2 = 28 ext{g/mol} $$,$$ ext{NH}_3 = 17 ext{g/mol}@@)