1) The crystal of potassium chloride is composed of A) potassium chloride molecules B) potassium atoms and chlorine atoms C) potassium atoms and chloride ions D) potassium ions and chloride ions

Is the part of an experiment that is not being tested and is used for comparison

Define and give an example of an acid and of a base.

A chemical reaction has not occurred if the products have

The equation [M] = mol/L represents which concentration measurement? A. molarity B. molality C. parts per million

Which of the following toxic forms of oxygen is improperly paired with the detoxifying enzyme or molecule?

If you add a large piece of zinc to a beaker of acid and, in a separate beaker, zinc shavings to a beaker of acid (of equal concentration/volume), the sample with the zinc shavings will react faster than the sample with the large piece.

How many atoms of oxygen are in 0.100 miles of silicon dioxide, SiO^2

All heat engines involve combustion. True False

What is the mass of 2.2 moles of aluminum oxide (Al2O3) ?

Which are components of cell theory? Check all that apply. All living things are made of cells. Cells are the basic unit of structure and function of all living things. All cells come from other cells. All cells come from nonliving matter.