During a chemical reaction, energy

is converted from one form to another

increases

decreases

is used up as bonds are broken and formed

Nonmetals tend to form what kind of ions?

Which are structural elements that are unique to dramas? check all that apply?

The difference in the color and consistency of different types of crayons and pastels is due to: A. the use of different binders. the use of liquid pigmentation. B. the fact that these media do not need a binding agent. C.

The state of matter that keeps its shape and volume when it is placed in a different container

C, H, O, + 3HCI → C, HCl, + 3H20 right 5 possible mole ratios

How does th composition of a mixture of hydrogen and oxygen differ from the composition of a compound containing hydrogen and oxygen?

You are asked to prepare 500 mL 0.250 M acetate buffer at pH 5.00 using only pure acetic acid (MW=60.05 g/mol, pKa=4.76), 3.00 M NaOH, and water. Answer the questions regarding the preparation of the buffer. 1.

Which direction do electrons move in when metals react with non-metals?

Hen an electric current passes through liquid water, hydrogen gas passes accumulates at one electrode and oxygen accumulates at the other. Which of the following is true? A) A physical change has occurred, with energy is being absorbed.

Explain what happens to water when heat energy is absorbed a. Ice melts b. Liquid water freezes c. Water vapor condenses