How many waters are present in tin (IV) chloride pentahydrate?

How many waters are present in tin(II) chloride dihydrate?

How many oxygen atoms are present in CaSO₄•2H₂O?

Cu(CH₃CO₂)₂•H₂O, copper(II) acetate monohydrate, has how many oxygen atoms?

How many hydrogen AND oxygen atoms are in Ba(OH)₂•8H₂O?

How many hydrogen atoms are there in the compound FeCl₂•4H₂O?

How many oxygen atoms are present in the compound MgSO₄•7H₂O?

How many oxygen atoms are present in Mg(NO₃)₂•6H₂O?

What is missing from this balanced equation?

3Na + AlCl₃ --> 3NaCl + ???

What is missing from this balanced equation?

Pb(NO₃)₂ + 2NaCl→2NaNO₃ + ???

What is missing from this balanced equation?

2 C₈H₁₈ + 25 O₂ --> 16 ??? + 18 H₂O

Find the missing product from this balanced equation.

N₂ + 2 O₂ --> 2 ???

Find the missing product in this balanced equation:

Mg(NO₃)₂ + 2 Li --> Mg + 2 ???

Use the balanced equation to figure out how much reactant was present before it decomposed if 20.56 grams of oxygen gas was produced and 54.03 grams of aluminum metal were collected.

Al₂O₃ --> 3O₂ + 4Al

If 45.8 grams of C₂H₄ burns to produce 37.1 grams of carbon dioxide gas and 28.9 grams of water how much oxygen gas was used?

C₂H₄ + 2 O₂ --> 2 CO₂ + 2 H₂O

If 60.7 grams of oxygen gas react with 45.8 grams of hydrogen gas how many grams of water will be produced?

**mass cannot be created or destroyed**

10 grams of nitrogen gas react with 17 grams of hydrogen gas. How many grams of ammonia (NH₃) were produced?

CaCO₃ --> CaO + CO₂

If 76.4 grams of calcium carbonate forms 11.67 grams of calcium oxide how much carbon dioxide would be produced?