Double Jeopardy HeatReactionsGas LawsMolarityStoich Compliments of the James Madison Center, JMU

The unit heat is measured in. Click when you are both ready. What are J (Joules) or Calories?

The variable for heat. Click when you are both ready. What is Q?

The 3 things you need to know To calculate heat. Click when you are both ready. What are specific heat, mass, and temperature change?

A 150 g sample of Al absorbs 3500 cal of energy. If the specific heat = 0.212, the temp change is... Click when you are both ready. What is 110 degrees Celsius?

The starting temp of a piece of Al Is 25 ºC. If it loses enough energy To cause a 55 ºC change in temp, The new temp is… Click when you are both ready. What is -30 ºC?

The type of reaction in which 1 reactant breaks down into 2. Click when you are both ready. What is Decomposition?

The 2 products of all combustion reactions. Click when you are both ready. What are CO 2 and H 2 O?

The products of a Neutralization reaction are: Click when you are both ready. What are a salt and water?

Balance the following reaction: __C 4 H 10 + __O 2  __CO 2 + __H 2 O Click when you are both ready. 2, 13, 8, 10

Write, finish and balance The following reaction: __HCl + __ Al  Click when you are both ready. 6 HCl + 2 Al  2 AlCl 3 +3 H 2

n in the equation PV=nRT stands for this: Click when you are both ready. What are moles?

The variable R in PV=nRT stands For this: (not the #... what it is) Click when you are both ready. What is the Universal gas law constant?

35 ºC is equal to ____ ºKelvin. Click when you are both ready. What is 308 K?

In our room where the temp is 25 ºC and the pressure is 0.95 atm, a gas occupies 1.55 L of space. What volume will it occupy at STP? Click when you are both ready. What is 1.35 L?

Determine the mass of NO 2 gas contained in 5.5 L at 20 ºC and 1.5 atm. Click when you are both ready. What is 15.8 grams?

Another word for Molarity: Click when you are both ready. What is concentration?

How many moles of nitric acid Are in 25 mL of a 3.5 solution? Click when you are both ready moles

How many grams are in 57 mL of a 1.5 M calcium chloride solution? Click when you are both ready. 9.5 grams

Zinc reacts with 25 mL of 4.0 M Nitric acid. How many moles of Zn will react? (Write reaction first!) Click when you are both ready moles of Zn.

If you have 25 mL of 1.5 HCl and 15 mL of 2.1 M Ca(OH) 2, what is the limiting reactant and how many moles of each do you have? (write reaction first!) Click when you are both ready. HCl is LR, HCl=.0375, Ca(OH) 2 =.0315

What is the mole ratio between H 2 and O 2 in the following rxn? 2 H 2 + O 2  2 H 2 O Click when you are both ready. 2 : 1

If you start with 25 g of H 2, how many moles of O 2 will you need? 2 H 2 + O 2  2 H 2 O Click when you are both ready moles O 2

If you start with 12.5 g of O 2, how many g of H 2 O will be made? 2 H 2 + O 2  2 H 2 O Click when you are both ready grams H 2 O

If you start with 12.5 grams of both calcium chloride and sodium carbonate, what is the limiting reactant? (Show your work and write reaction first!) Click when you are both ready. calcium chloride, moles

How many grams of O 2 are needed to combust 25 g of C 2 H 4. (Write and balance reaction first!) Click when you are both ready g of O 2.