Ch 2.1 vocab

Question 1

Matter

Answer 1

anything that has mass and takes up space

Question 2

molecule

Answer 2

2 or more atoms connected by chemical bonds

Question 3

pure substance

Answer 3

substances that are made up of only one kind of particle and have a fixed structure

Question 4

mixture

Answer 4

2 ore more substances physically combined and looks like the substance it is made of

Question 5

element

Answer 5

only made of one type of element/atom

Question 6

compound

Answer 6

made of 2 or more elements chemically combined

Question 7

homogenous mixture (Solution)

Answer 7

looks like one substance. the same throughout

Question 8

heterogeneous mixture

Answer 8

looks like 2 or more substances, not the same throughout

Question 9

alloy

Answer 9

a metallic homogenous mixture (brass, bronze, steel)

Question 10

physical property

Answer 10

property that can be observed w/o changing a substances chemical makeup

Question 11

chemical property

Answer 11

a property that involves a possible change in the chemical make up of a substance

Question 12

physical change

Answer 12

change that alters a substance but doesn’t change its chemical composition

Question 13

chemical change

Answer 13

change that involves at least one substance changing into a new substance

Question 14

distillation

Answer 14

separates mixtures of liquids through physical changes

Question 15

decanting

Answer 15

separates mixtures through physical changes

Question 16

filtration

Answer 16

separates mixtures of liquids and solids through physical change