Unit 6 vocab

Question 1

anything that takes up space and has mass

Answer 1

matter

Question 2

substance with atoms that are all alike

Answer 2

element

Question 3

element or compound that cannot be broken down into simper components without losing the properties of original substance

Answer 3

substance

Question 4

substance in which atoms of 2+ elements are combined with in a fixed proportion

Answer 4

compound

Question 5

substance in which its different components are easily distinguished

Answer 5

heterogeneous mixture

Question 6

substance containing 2+ components that are blended uniformly so individual components are distinguishable with a microscope

Answer 6

homogenous mixture

Question 7

heterogenous mixture containing liquid in which visible particles slowly settle due to gravity

Answer 7

suspension

Question 8

heterogenous mixture where particles never settle

Answer 8

colloid

Question 9

tendency for beams of light to scatter as it passes through a colloid

Answer 9

Tyndall effect

Question 10

temperature point in which solid begins to liquefy

Answer 10

melting point

Question 11

temp at which pressure of vapor of liquid is equal to external pressure acting on surface of liquid

Answer 11

boiling point

Question 12

fluids resistance to flowing

Answer 12

viscosity

Question 13

max amount of solute that can be dissolved in a given amount of solvent at a given temp

Answer 13

solubility

Question 14

in a solution substance that is being dissolved

Answer 14

solute

Question 15

in a solution substance in which solute is dissolved

Answer 15

solvent

Question 16

homogenous mixture, remains constant and uniformly mixed and has particles that are so small they cant be seen with a microscope

Answer 16

solution

Question 17

mass per unit volume of material

Answer 17

density

Question 18

loss of electrons form atoms of substances in chemical reactions

Answer 18

oxidation

Question 19

process in which 1+ substances are changed into new substances

Answer 19

chemical reaction

Question 20

any characteristic of material, such as size or shape, can be observed without changing identity of material

Answer 20

physical property

Question 21

characteristic of a substance, such as flammability, can be observed that produces new substance

Answer 21

chemical property

Question 22

change of one substance into a new one

Answer 22

chemical change

Question 23

measure of average kinetic energy of all particles that make up an object

Answer 23

temperature

Question 24

matter with enough energy to overcome the attractive forces within its atoms, composed of positively and negatively charged particles

Answer 24

plasma

Question 25

amount of energy required to change substance from solid to liquid phase

Answer 25

heat of fusion

Question 26

amount of energy required for liquid at its boiling point to become gas

Answer 26

heat of vaporization

Question 27

process turning liquid to vapor

Answer 27

evaporation

Question 28

at or near boiling point

Answer 28

boiling

Question 29

states that mass of all substances present before chemical change equals mass of all substances remaining after change

Answer 29

law of conseravtion of mass