Energy

H₂O

Ca

Cl

K

HCl

C₆H₁₂O₆

Rb

Na

NaCl

C₇H₁₄

a.

can combine with

protons to make an atom

b.

is made up of compounds

can combine with one or more other elements to make a compound

is defined by the

number of electrons it has

is an atom or group of atoms with a charge

Na

Na⁺

Fl^-

Ca²⁺

C

more hydroxide ions than hydrogen ions and a pH greater than 7

more hydrogen ions than hydroxide ions and a pH greater than 7

more hydroxide ions than hydrogen ions and a pH less than 7

more hydroxide ions than hydrogen ions and a pH of 7

more hydrogen ions than hydroxide ions and a pH less than 7

a.

a physical change

a chemical change

both a physical and chemical change

first a physical

change and then a chemical change

neither a physical change nor a chemical change

a.

thermodynamic

something that has the

capacity to do work

positively charged

something that can produce change

anything that has mass

and takes up space

neutrons and isotopes

neutrons and electrons

c.

neutrons and protons

protons, neutrons, and electrons

protons only