Elements, compounds, mixtures

Question 1

A substance that can not be separated or broken down into simpler substances by chemical means

Answer 1

element

Question 2

a sample of matter, either a single element or a single compound, that has definite chemical and physical properties

Answer 2

pure substance

Question 3

an element that is shiny and conducts heat and electricity well

Answer 3

metal

Question 4

an element that conducts heat and electricity poorly

Answer 4

nonmetal

Question 5

an element that has properties of both metals and nonmetals

Answer 5

metalloid

Question 6

substance made up of two or more different elements joined by chemical bonds

Answer 6

compound

Question 7

compounds that contain carbon and hydrogen found mostly in foods but can also be in synthetic goods

Answer 7

organic

Question 8

organic compounds that are made of living things. 4 categories: carbohydrates, lipids, proteins, and nucleic acids

Answer 8

biochemicals

Question 9

used as a source of energy and includes sugars, starches, and fiber

Answer 9

carbohydrates

Question 10

store excess energy in the body and make up cell membranes which include fats, oils,and waxes

Answer 10

lipids

Question 11

most abundant in your body and they regulate the chemical activities of the body and build and repair body structure

Answer 11

protiens

Question 12

like DNA and RNA- contain genetic information and help your body build protein

Answer 12

nucleic acids

Question 13

combination of two or more substances that are not chemically combined

Answer 13

mixture

Question 14

describes something that has a uniform structure or composition throughout Ex: sugar water

Answer 14

homogeneous

Question 15

describes something that does not have a uniform structure or composition throughout Ex: a handful of rocks, dirt and leaves

Answer 15

heterogeneous

Question 16

a homogeneous mixture of 2 or more substances uniformly dispersed throughout a single phase

Answer 16

solution

Question 17

in a solution, the substance that dissolves in the solvent

Answer 17

solute

Question 18

in a solution, the substance in which the solute dissolves

Answer 18

solvent

Question 19

the amount of a particular substance in a given quantity of a mixture or solution

Answer 19

concentration

Question 20

the amount of one substance to dissolve in another at a given temperature and pressure

Answer 20

solubility

Question 21

a mixture in which particles are more or less evenly dispersed throughout a liquid or gas Ex: snow globe (can settle out)

Answer 21

suspension

Question 22

a mixture consisting of tiny particles that are intermediate in size between those in a solution and those in suspensions that are suspended in a liquid, solid, or gas.

Answer 22

colloid