What kind of rock is this? Igneous

Metamorphic

Sedimentary

To which group of rocks would this rock belong?

Coarse grained rocks

Fine grained rocks

Non grained rocks

Where would this rock most likely be formed?

Along the side of a volcano

On the ocean floor

Underneath the earth

In which situation can a mixture always be called a solution

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.