Does anyone know where i can find a practice cumulative chem test online?

What determines whether or not a substance can be actively transported through the membrane?

The nitrogen cycle is completed with the process of what?

A photon has a frequency of 2.9 * 10-16 Hz. Planck's constant is 6.63 * 10-34 J•s. The energy of the photon, to the nearest tenths place, is___ * 10-49 J.

Which of these statements is true of saturated hydrocarbons? a. They contain one carbon to carbon double bond. b. They have at least one carbon to carbon double bond. c. They have one or more carbon to carbon triple bonds. d.

When an object starts moving on its own, potential energy becomes kinetic energy.?

What is the difference between a root word and a combining form? List 2 examples of combining form

What is the octet rule and how does it explain the formation of ionic compounds?

Can somebody explain step by step how to solve decomposition reactions?

Which of the following statements are correct about the chemical reaction? H2 + O2 - > H2O2 versus 2 H2 + O2 - > 2 H2O? They are both balanced chemical equations. The two reactions are equivalent. The laws of thermodynamics apply to both.

What do chemists use to describe a chemical reaction