The mass number (atomic mass) is the sum of protons and neutrons.

Cations have a positive charge.

Contrast dehydration synthesis and hydrolysis reactions

The chemical symbol for potassium is which of the following?

The prediction is known as a statement of cause and effect.

Scientific Method Scenario: Use the scientific method to solve the problem.  Label each step as you go.  After getting into your car to leave home, you notice that it will not start.

When atoms have differing numbers of neutrons, we them isotopes.

A community is only made up of one population.

Which subatomic particle(s) are found in the nucleus of an atom?

This organelle is responsible of photosynthesis in plant cells.