1st 4th Six Weeks Common Assessment Review

Oxygen gas can be produced by decomposing potassium chlorate using the reaction below. If 138.6 g of KClO₃ is heated and decomposes completely, how many liters of oxygen gas is produced?  2KClO₃ (s) -->2 KCl (s) +3 O₂ (g)

•  25.33 L O₂ produced
• 38.00 L O₂ produced
• 758.3 L O₂ produced
• 138.6 g O₂ produced

How do I change from moles to liters?

• using 22.4 
• using 6.02 x 10²³
• using 1 mol
• using the numbers off the periodic table

Given the following reaction,
2 NaClO₃ (s) --> 2NaCl (s) +3 O₂ (g)  
12.00 moles of NaClO₃ will produce how many liters of O₂?

• 256 g of O₂
• 403 g of O₂
• 288 g O₂
• 8 g O₂

Balance this equation, __Ca + ___H₂O --> ___CaO + ___H₂

• _{1, 2, 1, 2
  1,2, 1, 2}
• 2, 1, 1, 1
• 1,1,1,1
• 1,2,2,2

Name this reaction, Cl₂ + 2KI --> I₂ + 2KCl

• Synthesis
• Single Replacement
• Double Replacement
• Decomposition

Balance this equation,          
__ Al₂O₃ -->__ Al + __O₂ 

• 1,1,1
• 2,2,3
• 2,4,3
• 3,2,1

What does the (aq) stand for in NaCl (aq)?

• solid
• aqueous 
• liquid
• gas

New substances produce by a chemical reaction are_.

• Reactants
• Resultants
• Coefficents
• Products

Which chemical reaction forms Carbon Dioxide and Water?

• Double Replacement
• Single Replacement
• Combustion
• Decomposition

Which chemical reaction breaks down into two substances?

• Double Replacement
• Single Replacement
• Synthesis
• Decomposition