If an atom gains electrons, it becomes a

a. negatively charged ion.

b. neutral atom.

c. negatively charged atom.

d. neutral ion.

Water vapor in the earth's air is an example of a solution. what type of solution would this be

What are the three best methods that will stop steel from rusting

If you want a reaction to happen more quickly, what do the particles inside the reaction need to do?

Match the term with the definition. Match Term Definition Condensation A) A phase change from a liquid to a solid Evaporation B) A phase change from a liquid to a gas Sublimation C) A phase change from a solid to a gas Freezing D) A phase change

PCL3 the proper name

Which of the following choices are types of energy? (Select all that apply) cube energy visible energy nuclear energy kinetic energy

Hanna hypothesizes that granite is denser than sandstone. How can Hanna test her hypothesis?

It is possible to determine the environment of sedimentation for various sand dunes by

Which change results in the formation of different substances? (1) burning of propane (2) melting of NaCl (s) (3) deposition of CO2 (g) (4) solidification of water

Suppose that a solid cube of some material floats on the surface of an oil puddle at a service station with 75.1 % of its volume submerged. The density of the oil is 923 kg/m 3. What is the density of the cube's material