An atom with 16 protons must be:

A. oxygen

B. selenium

C. sulfur

D. can't tell

Why are alkenes not usually burned as fuels?

Identify the option below that exemplifies how the intrinsic chemical properties of a reactant affect the rate of reaction. Select the correct answer below: When exposed to air, sodium reacts completely overnight, whereas iron barely reacts.

Acetic acid ionizes only partially in solution. What type of acid is acetic acid?

Which of the following statements is true? A. Unsaturated solutions will not dissolve more solute. B. For most substances, the solid state is more dense than the liquid state. C. Density is not temperature dependent. D.

Which of the following statements is false? A) Racemic mixtures of enantiomers do not rotate the plane of polarized light. B) Cyclobutane is more reactive than butane. C) Aldehydes are less reactive than ketones.

2. If you add water to dilute a solution, what happens to the molarity of the compound in the solution? Explain

Which of the following is NOT true of nitrogen fixation? (A) it is a process that occurs exclusively in some species of prokaryotes (B) it sometimes occurs in bacteria that are mutualistic symbionts in plant roots (C) it is the metabolic process

What two pieces of information do u need to describe force

Why are the atomic masses for most elements not whole numbers?

An aqueous solution is 0.387 m in hcl. what is the molality of the solution if the density is 1.23 g/ml?