The elements that do not ordinarily form compounds are

a. elements in the carbon family.

b. metals.

c. halogens.

d. noble gases.

An ice cube melts when it's chemical energy increases?

What are some examples of things you expect to see when observing a chemical reaction?

Which of these statements best explains why chemistry is reliable? It is biased. It cannot be verified. It cannot add new evidence to existing evidence. It gives the same result when an experiment is repeated.

Table sugar is not a mineral because: it is made of more than one element. it is not made by a geologic process. Its chemical composition is always changing. it is in crystal form.

Which property of a substance is not affected by physical changes? A) reactivity B) size C) shape D) position

What are the best unit to use to measure a liquid?

Process A: Waves in a river lift rocks which crash down to the river bed and break Process B: Water in the cracks of rocks freezes and breaks open the rocks Process C: An organic acid produced by rotting vegetation makes holes in rocks Process D:

How do you make clorifil?

Gases are unique because it is the only phase that can be compressed can flow is composed of moving particles cannot be compressed

Under equilibrium condition, what is the probability of an electron state being occupied if it is located at the Fermi level