How many half lives would pass if a mass of copper-66 decayed for 51 minutes? The half life of Cu-66 is 5.10 minutes.

What is the effect of the following on the volume of 1 mol of an ideal gas? The temperature changes from 305 K to 32°C and the pressure changes from 2 atm to 101 kPa. A. Volume increases by 200% B. Volume decreases to 50% of its original value C.

How are changes between phases consistent with the law of conservation of matter

How many ions are in 4.26 moles of Ammonium

A sequence of thermonuclear fusion processes inside massive stars can continue to transform the nuclei of elements such as carbon, oxygen, etc.

The specific heat of wood is 2.03 (J/gºC). How much heat is needed to convert 550 grams of wood at 15°C down to 10 °C?

Chemists use activity series to determine whether which type of reaction will occur?

1. Does the temperature rise or drop when you mix vinegar and baking soda. 2. Does the temperature rise or fall when you mix baking soda and water.

Use the balanced equation from number four above to determine the limiting reactant if we had a mixture of 5.0 moles of Fe and 4.0 moles of O2.

Using the kinetic theory what happens to oxygen particles as they are cooled

Identify the following: 1. The only 2 liquid elements. 2. The element in period 4, group 0. 3. The second metalloid in period 4. 4. The first element in group 4A.