Name the particle in the nucleus of an atom that adds no charge to the nucleus:

a. proton

b. photon

c. neutron

d. electron

What is the function of a plus sign () in a chemical equation?

Which is NOT a chemical reaction? a. water seeping through a pot of soil b. a nail gradually rusting c. mold growing on a piece of cheese d. eggs being cooked in a pan

What can be made in a laboratory

The energy from the sun, in the form of light, hits the earth through the process of radiation. when the light is absorbed by earth's surface (land or water), it heats up air directly in contact with that surface.

What is the difference between a repetition and replication

Which is the balance equation for S8+O2=SO2

Sound waves travel fastest through? A.) Air B.) Steel C.) Water D.) Vacuum

Which of the following combinations will result in a reaction that is never spontaneous? 1) positive enthalpy change and positive entropy change 2) positive enthalpy change and negative entropy change 3) negative enthalpy change and positive entropy

Which of the formed elements is present in the greatest concentration?

A compound has a percent composition of 24.74% potassium (molar mass = 39.10 g/mol), 34.76% manganese (molar mass = 54.94 g/mol), and 40.50% oxygen (molar mass = 16.00 g/mol).