Physical Science Chemistry Study Guide

Front 1

A neutral solution has a pH of?

Back 1

7

Front 2

What piece of equipment will measure 75 mL of sulphuric acid with the greatest precision.

Back 2

100 mL graduated cylinder

Front 3

What should you do if you find an unlabled chemical bottle in the lab?

Back 3

Tell the teacher so it can be disposed properly.

Front 4

Why do atoms of sodium and chlorine attract each other in a salt chrystal?

Back 4

Sodium has a positive charge and chlorine has a negative charge.

Front 5

What type of bond does a compound of Barium and Sulfur (Barium Sulfide) have?

Back 5

Ionic

Front 6

What kind of reaction happens when wood burns and releases heat into the environment?

Back 6

Exothyrmic

Front 7

Name the compound with the formula N2O5? (the 2 and 5 are subscripts)

Back 7

Dinitrogen pentoxide

Front 8

Where are valence electrons located?

Back 8

The outer shell

Front 9

Determine the number of atoms in the following compound: Al(OH)3. (3 is a subscript)

Back 9

7

Front 10

Atoms are electrically neutral because they have:

Back 10

Equal numbers of protons and electrons

Front 11

What kind of change is a glue gun melting a glue stick?

Back 11

Physical change

Front 12

What kind of change is a leaf changing color?

Back 12

Chemical Change

Front 13

What is the base unit for mass?

Back 13

Kilogram

Front 14

What kind of mixture is air?

Back 14

Homogeneous

Front 15

Chlorine has atomic number 17 and mass number 35. It has
___Protons____ electrons ____ neutrons

Back 15

17 protons, 17 electrons, 18 neutrons
(protons = electrons = atomic number)
Neutrons = mass # - atomic #

Front 16

good electrical conductor and heat conductor

Back 16

metal

Front 17

1.06L of water = _______mL of water

Back 17

1.06 L of water = 1060 mL water
(to move from L to mL, move the decimal to the right three spaces)

Front 18

A substance, made of two or more atoms that are chemically bonded, that can be broken down into simpler, stable substances:

Back 18

Compound

Front 19

Lab equipment, mostly used to hold liquids

Back 19

Beaker

Front 20

The relationship between the mass m of a material, its volume V, and its density D is:

Back 20

D = m/V

Front 21

What is the metric unit that is closest to the diameter of a pencil?

Back 21

centimeter

Front 22

If a mixture is uniform in composition, it is said to be:

Back 22

homogeneous

Front 23

What are the Noble Gasses in Group 18 best known?

Back 23

unreactive

Front 24

Elements in a group or column in the periodic table can be expected to have similar:

Back 24

properties

Front 25

Group 17

Back 25

Halogens

Front 26

A blend of any two or more kinds of matter, as long as each maintains its own unique properties:

Back 26

Mixture

Front 27

Vertical columns on the periodic table

Back 27

groups

Front 28

What does the symbol mm represent?

Back 28

Millimeter

Front 29

Measure of the quantity of matter

Back 29

mass

Front 30

Properties of Ionic Compounds:

Back 30

brittleness
conducts electricity
hardness

Front 31

Examples of units:

Back 31

gram
kilometer
teaspoon
kilogram

Front 32

Examples of physical change:

Back 32

cutting
grinding
boiling
melting

Front 33

SI base unit for length:

Back 33

Meter

Front 34

All atoms of the same element have the same:

Back 34

atomic number

Front 35

Why do Noble gasses not typically form compounds?

Back 35

Noble gasses do not typically combine with other elements, due to their full outer energy level, which has eight electrons.

Front 36

A non-metal is typically:

Back 36

brittle

Front 37

Examples of chemical change:

Back 37

igniting
rusting
burning

Front 38

What is the formula for the compound formed by calcium ions, Ca^2+, and chloride ions, Cl^-?

Back 38

CaCl2 (the 2 is a subscript)

Front 39

0.25 g = _____ mg

Back 39

.25 g = 250 mg (move the decimal three decimals to the right)

Front 40

atomic # = # neutrons = # protons

Back 40

remember atomic number equals the number of neutrons equals the number of protons

Front 41

What state of matter has a material with no definite shape but a definate volume

Back 41

gas

Front 42

what group of the periodic table does lithium and potassium belong?

Back 42

alkali metals

Front 43

Remember your periodic table...

Back 43

...write what group is what on the top of every one. Make a note of groups, periods and families.

Front 44

What kind of ion is HCO3?

Back 44

a polyatomic ion

Front 45

heterogeneous mixtures

Back 45

are NOT uniform throughout

Front 46

When is a metal malliable

Back 46

if it can be hammered into thin sheets

Front 47

What is the base measure of mass?

Back 47

gram (g)

Front 48

Isotopes are atoms of the same element that have different _________.

Back 48

masses

Front 49

chemical bond formed when two atoms share one or more pairs of electrons

Back 49

covalent bond

Front 50

Where are all known chemical elements organized into groups based on similar chemical properties:

Back 50

periodic charg

Front 51

Metalloids are often ______________.

Back 51

Semiconductors

Front 52

the horizontal rows on the periodic table:

Back 52

periods

Front 53

Mass number for chlorine

Back 53

35

Front 54

When an atom gains 2 electrons, what does it become?

Back 54

anion

Front 55

Put these symbols of length in order from largest to smallest:
m, cm, km, mm

Back 55

km, m, cm, mm

Front 56

What is another name for a homogeneous mixture?

Back 56

solution

Front 57

What are the group numbers 3-12 on the periodic table know as?

Back 57

Transition elements

Front 58

What is the smallest unit of matter that maintains its chemical identity?

Back 58

atom

Front 59

SI base unit for time

Back 59

second

Front 60

Write 250 mL in scientific notation

Back 60

2.5 X 10^-1 L

Front 61

What is the appropriate unit for density?

Back 61

g/cm^3

Front 62

What is the common oxidation number of alkali metals

Back 62

an oxidation number of 1+