INTERACTIVE SCIENCE INTRODUCTION TO CHEMISTRY CHAPTER 1

Question 1

Homogeneous mixtures can be

Accepted Answer

Liquids, solids, gasses

Question 2

_____ is a single kind of matter that is pure, meaning it always has a specific makeup, or ____

Accepted Answer

substance; composition

Question 3

SI is the abbreviation for what

Accepted Answer

International System of Mass

Question 4

Which are the correct symbols for the elements

Accepted Answer

C for carbon; O for oxygen; Ca for calcium

Question 5

Methods to separate parts are

Accepted Answer

Distillation;Evaporation;Filtration ;Magnetic Attraction

Question 6

Photosynthesis is a ___ chemical change

Accepted Answer

natural

Question 7

__ alters appearance of matter; doesn't change substance in the matter into different substance

Accepted Answer

Physical Change

Question 8

What charge does the nucleus possess

Accepted Answer

a negative charge

Question 9

Energy is ____ in a chemical change

Accepted Answer

conserved

Question 10

When elements chemically combine they....

Accepted Answer

have properties from both elements, form a new compound

Question 11

_made of two or more substances that are together in the same place but their atoms aren't _ __

Accepted Answer

chemically bonded

Question 12

change in which energy is absorbed

Accepted Answer

endothermic change

Question 13

___ when left in the open air liquid solution can turn into gas leaving solid components behind

Accepted Answer

Evaporation

Question 14

rapid combustion of a fuel with oxygen;produces heat, light, and new substance

Accepted Answer

combustion

Question 15

In a chemical change atoms are only ____

Accepted Answer

rearranged, moved

Question 16

Substances in mixtures have their ___ properties

Accepted Answer

own

Question 17

Examples of matter are

Accepted Answer

Wood, Air, Metal, Plastic

Question 18

___ ____ _ __- system scientists use to measure the properties of matter

Accepted Answer

International System of Units

Question 19

Unlike a __ ___, a chemical change produces new ___ with new and different ____

Accepted Answer

physical change;substances;properties

Question 20

Energy can be transformed from __ ___ __ ____

Accepted Answer

one form to another

Question 21

A substance that undergoes a ____ change is still the same substance after the change

Accepted Answer

physical

Question 22

A mixture can be ____ or ______

Accepted Answer

heterogeneous;homogeneous

Question 23

___ amount of space that matter occupies

Accepted Answer

Volume

Question 24

___ force of atttractionbetween two atoms

Accepted Answer

chemical bond

Question 25

Finding the density of an object is

Accepted Answer

dividing its mass by its volume

Question 26

slow combination of bright metal with sulfur/other substance produces dark coating on the metal

Accepted Answer

tarnishing

Question 27

Thermal energy ___ flows from ____ matter to ____ matter

Accepted Answer

naturally; warmer;cooler

Question 28

The SI unit of mass is the

Accepted Answer

kilogram

Question 29

______ substance made of two or more elements that are chemically combined in a set ratio

Accepted Answer

compound

Question 30

combination of a substance with oxygen

Accepted Answer

oxidation

Question 31

__ iron objects can be separated form a mixture using a magnet

Accepted Answer

Magnetic Attraction

Question 32

The kilogram is

Accepted Answer

smaller unit to measure grams

Question 33

measure of how hot or cold something is

Accepted Answer

temperature

Question 34

Scientists know that all matter in the universe is made of more than 100 different __, called _

Accepted Answer

substances; elements

Question 35

___ measure of the mass of a material in a given volume

Accepted Answer

Density

Question 36

_ _ __ _ _- the fact that matter is not created or destroyed in any chemical or physical change

Accepted Answer

Law of Conservation of Mass, Law of Conservation in Volume

Question 37

Homogenous mixtures are ___ to separate

Accepted Answer

difficult

Question 38

___ ___-change in matter that produces one or more new substances, or chemical ____

Accepted Answer

chemical change ;reaction

Question 39

__a characteristic of a substance that can be observed without changing into another substance

Accepted Answer

Physical property

Question 40

___the energy stored in the chemical bonds between atoms is a form of energy

Accepted Answer

chemical energy

Question 41

___ measure of the force of gravity on you

Accepted Answer

Weight

Question 42

The formula is

Accepted Answer

(g/mL), (g/cm³)

Question 43

__ explains that all matter is from atoms

Accepted Answer

Particle Theory

Question 44

__ solids can be separated into liquids by pouring the mixture through a filter

Accepted Answer

Filtration

Question 45

_________ is the study of matter and how it changes

Accepted Answer

Chemistry

Question 46

total energy of the motion of all the particles in an object

Accepted Answer

thermal energy

Question 47

Elements=

Accepted Answer

simple, pure

Question 48

releases energy

Accepted Answer

exothermic change

Question 49

_______ mixture - so evenly mixed you can't see the different parts

Accepted Answer

homogeneous

Question 50

Other examples of physical properties are

Accepted Answer

Bending,breaking,chopping, Crushing

Question 51

Density is a ____ property

Accepted Answer

physical

Question 52

Less dense→ liquids ____

Accepted Answer

float

Question 53

________ is anything that has mass and takes up space

Accepted Answer

Matter

Question 54

The SI unit of volume is the

Accepted Answer

cubic meter

Question 55

Unlike a physical change a chemical change produces ___ substances with ___ and ___ properties

Accepted Answer

new; new;different

Question 56

Elements and compounds ___ and are ___

Accepted Answer

differ; substances

Question 57

Every form of matter has two kinds of properties-- _____ _____ and ______ ________

Accepted Answer

physical property; chemical property

Question 58

Chemical energy changes into other forms of energy and

Accepted Answer

other forms of energy can change into chemical energy

Question 59

__ liquids can be separated by heating them to a temperature until one of them boils then cools

Accepted Answer

Distillation

Question 60

_a characteristic of a substance that describes its ability to change into different substances

Accepted Answer

chemical property

Question 61

use of electricity to break a compound into elements or simpler compounds

Accepted Answer

electrolysis

Question 62

Every chemical and physical change in matter includes a change in _____

Accepted Answer

energy

Question 63

__amount of matter an object is ; doesn't change with location even if force of gravity changes

Accepted Answer

Mass

Question 64

What are some characteristics for materials

Accepted Answer

Hard or soft, Solid or gas, Hot or cold

INTERACTIVE SCIENCE INTRODUCTION TO CHEMISTRY CHAPTER 1

Questions 77

INTERACTIVE SCIENCE INTRODUCTION TO CHEMISTRY CHAPTER 1

Questions 77