Which energy changes would take place when a water is heated using a Bunsen burner?

Heat energy causes water molecules to gain kinetic energy. More energy is gained by these molecules into potential energy to expand into atmosphere to form vapor molecules.

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.