Theoretically, which nonmetal should be the most reactive?

He

Rn

F

At

Which has a larger radius f or - f

What trend does the electronegativity have on the periodic table?

What is the temperature - 39C expressed in kelvins?

Which of the following is the best definition of a scientific theory? A predicted experimental outcome A mathematical model (an equation) A prediction of how a natural phenomenon will behave A well tested explanation of a natural phenomenon

What does a negative oxidation number mean?

Which is an example of Temporal Isolation? A. Flowers that bloom in different months. B. Birds that have different mating calls C. Fruits flies that mate in different locations. D. Squirrels that have different fur colors

A chemical reaction can start when enough activation energy is added to the reactants. Do you think the activation energy for chemical reactions in living things is high or low / Explain your answer

20 Which statement describes a reversible reaction at equilibrium? (1) The activation energy of the forward reaction must equal the activation energy of the reverse reaction.

Count the total number of atoms in CaCO3: 2 3 4 5 6

Question #21TrueFalse The general name for a substance added to a reaction that affects the rate but is not consumed in the reaction is called a complex a. True b. False