A large bar of solid gold is melted into liquid. The liquid is then poured into molds to make a number of gold coins. Was this a chemical or physical
change? Explain.

Chemical, because the gold turned into something new and is no longer gold.

Physical, because the gold changed size and shape, but is still gold.

How does the release of trapped gases in magma cause a volcano to erupt? a. they push the magma up the pipe and then are reabsorbed into the magma chamber. b. they cause the magma to change chemically into lava. c. the gases form vents that allow the magma to flow out. d. the gases rush out and carry the magma with them.

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?

Which process is represented a.) deletion b.) nondisjunction c.) translocation d.) insertion