A chemical reaction, where more energy is released than is needed to get the reaction started, is called?

A)

A really amazing reaction

B)

Endothermic

C)

Exothermic

D)

Non-reactive

3. Explain how tectonic plate movement could create another supercontinent like Pangaea.

What happens to the total mass of a carbon and oxygen after they form carbon dioxide

How many moles of malachite should be formed when 1.5 moles of copper sulphate reacts with an excess of sodium carbonate?

What has the greatest affect on reaction rate? - temperature - concentration - pressure - catalyst

What is an extensive property of substance?

How many elements are in one molecule of Methane? How many elements are in one molecule of Ammonia? How many elements are in one molecule of Vinyl Alcohol? How many elements are in one molecule of Ethylene?

A banana split contains 1.12 million calories. What is the energy value in kilojoules? a. 1.12 kJ b. 4.686 x 10^3 kJ c. 4686 kJ d. 2.68 x 10^5 kJ e. 268 kJ

2 grams of a substance was dissolved in 75.0 g of water resulting in a temperature decrease from 23.1 ⁰C to 18.7 ⁰C. The specific heat of the solution is 4.18 J/g·⁰C. Calculate the amount of heat associated with the water.

Why do you think the soccer ball fell more slowly than the golf ball

Which of the following is an example of chemistry research in the main area of energy?. a. producing bioplastics. b. specific reactions between prescription drugs and chemicals in cells. c. developing rechargeable batteries. d.