What is the first step in nuclear fission?

A. Energy is released

B. Energy is produced

C. A neutron strikes a particle

D. An isotope is formed

Which best describes why scientists need to be creative? a. They need to be sure that the evidence backs up the conclusion. b. They need to notice all of the evidence carefully. c. They need to be constantly asking questions. d.

4HCI + O2 = 2H20 + Cl2 Which of the following would result from increasing the concentration of H20? The rate of the backward reaction increases. The volume of hydrochloric acid decreases. Im The rate of forward reaction increases.

A reaction mixture is at equilibrium. What happens when the amount of one of the reactants is lowered?

Chemical formula for potassium dichromate

Which substance is an electrolyte? (1) CH3OH (3) H2O (2) C6H12O6 (4) KOH

Is carbon monoxide covalent or ionic?

Do all organisms perform meiosis?

which one of these reactions is energy released? A all reactions B no reactions C endothermic reactions D exothermic reactions

Why do ionic compounds conduct electricity when dissolved in water but most covalent compounds do not?

Which of the following is an example of a molecule? F C Al O2