2. Which of these objects has kinetic energy?

a. A ball moving through the air.

b. A ball sitting on a table.

c. A ball buried underground.

d. A ball sitting on the edge of a cliff.

Which statement about hydrogen bonding is true? Select one: a. Hydrogen bonding is the intermolecular attractive forces between two hydrogen atoms in solution. b.

4. Which of the following statements correctly describe atoms? Select all that apply. A) Atoms have mass, B) Atoms are the basic unit of a chemical element. C) Matter is made of atoms. D) Atoms take up space.

5. When would it be useful to know whether a chemical is an acid or base? Give an example.'

A connection between electricity and magnetism can be observed if:

What is the number of known elements?

Consider the reaction: 8H2S (g) + 4O2 (g) →8H2O (g) + S8 (g). Δ[H2S]/Δt = - 0.033M/s. Find Δ[O2]/Δt. Δ[H2O]/Δt. Δ[S8]/Δt. Find the rate of the reaction.

At room temperature and pressure what is the volume of one mole of oxygen?

Ibuprofen, a common pain remedy, has an empirical formula of C7H9O and a molar mass of approximately 218.078 grams per mole. What is the molecular formula of ibuprofen?

Copper (cu) is a transition element used in the making of coins. calculate the mass in grams of 0.0420

In 1864, the Solvay process was developed to make soda ash. One step in the process is represented by the balanced equation below.