Which of the following is required to change the state of matter?

addition or removal of heat

decrease in temperature

increase in temperature

addition or removal of energy

Explain what happens to a gas when it is put into a container?

The typical reaction of the saturated hydrocarbons is: substitution addition combustion hydrogenation

Describe how you would make 1.0 l of a supersaturated solution of cdi2

In a bottle of coke which would you expect to be higher, the concentration of H + or the concentration of OH+? Why?

Explain why crushing a can is physical change and not chemical

Two children are playing tag. Child A who is doing the chasing can run 100m in 24 seconds Child B is running away from child A and can run 64m in 21 seconds.

What ion does a base increase

What is the definition of Amplitude?

An excess of NiCO3, 12 g, was added to 40cm cube of sulpheric acid, 2.0 mol/dm cube. The unreacted nickel carbonate was filtered out and the filtrate evaporated to optain the crystals.

Under what condition is decompostion the fastest? Under what condition is it the slowest?