White ICP Semester I Final

Question 1

What is the mass of a block of steel with a volume of 600 cm3 and density of 7.8 g/cm3 D=M/V

Accepted Answer

4680 g

Question 2

What is the formula for Tin (II) Bromide

Accepted Answer

SnBr2

Question 3

When copper combines with oxygen to form copper (II) oxide, the charge of the copper ion is

Accepted Answer

Cu2+

Question 4

The science of what matter is made of and how it changes is called

Accepted Answer

chemistry

Question 5

Alkali metals are extremely reactive because they

Accepted Answer

have 1 valence electron that is easily removed to form + ion

Question 6

Elements that are found in the same group have the same number of

Accepted Answer

valence electrons

Question 7

What is 78, 900, 000, 000 expressed in scientific notation?

Accepted Answer

7.89 X 1010

Question 8

balance the equation: __ KClO3 --> __ KCl + __ O2

Accepted Answer

2:2:3

Question 9

In an exothermic reaction, energy is transferred from

Accepted Answer

the reactants to the surroundings

Question 10

Which is not a family of the periodic table?

Accepted Answer

Anions

Question 11

A chemical equation is balanced by changing or adding

Accepted Answer

coefficients

Question 12

The forces that hold different atoms or ions together are

Accepted Answer

chemical bonds

Question 13

Metals tend to be

Accepted Answer

conductors of heat

Question 14

In radioactive decay, with each successive half-life, half the remaining sample decays to form another

Accepted Answer

element

Question 15

A scientific model is a

Accepted Answer

representation of a real event or object

Question 16

What is the formula for Sodium Fluoride

Accepted Answer

NaF

Question 17

What happens in a chemical reaction?

Accepted Answer

atoms are rearranged

Question 18

What is the mass of 0.75 mol sulfur with molar mass of 32 g/mol? [Molar Mass = mass/mol]

Accepted Answer

24 g

Question 19

Which of the following is an example of a physical change?

Accepted Answer

dissolving salt in water

Question 20

Each molecule of table sugar, C12H22O11 contains

Accepted Answer

12 atoms of carbon

Question 21

Gases take up a lot of space because gas molecules

Accepted Answer

are not attracted to one another

Question 22

The name dinitrogen tetroxide tells you that this compound contains

Accepted Answer

2 N atoms and 4 O atoms

Question 23

A substance that cannot be broken down into simpler substances is a(n)

Accepted Answer

element

Question 24

Molar mass is defined as

Accepted Answer

the mass in grams of one mole of a substance

Question 25

The chemical formula for table sugar is C12H22O11. How many oxygen atoms are in each molecule?

Accepted Answer

11

Question 26

Avegadro's number is defined as the number of particles in

Accepted Answer

one mole of a substance

Question 27

A loaf of bread weights 1,362 g. What is the weight in kilograms?

Accepted Answer

1.362 kg

Question 28

Radio active materials have unstable

Accepted Answer

Nuclei

Question 29

Mendeleev studied the properties of the elements and looked for

Accepted Answer

patterns

Question 30

What is 78, 900, 000, 000 expressed in scientific notation?

Accepted Answer

7.89 X 1010

Question 31

Fusion occurs when nuclei

Accepted Answer

Combine

Question 32

According to Bohr's theory, an electron's path around the nucleus defines its

Accepted Answer

energy level

Question 33

The energy source in photosynthesis is

Accepted Answer

light energy

Question 34

The 2 main branches of science are

Accepted Answer

natural and social science

Question 35

The decimal equivalent of 10-2 is

Accepted Answer

0.010

Question 36

What is the formula for : Potassium chloride

Accepted Answer

KCl

Question 37

A scientific theory is an explanation that

Accepted Answer

has been tested by many observations

Question 38

Balance the equation: __S8 + __O2 --> __SO2

Accepted Answer

1: 8:8

Question 39

A synthesis reaction is a reaction between at least two compounds in which

Accepted Answer

a new, more complex compound is formed.

Question 40

An atom's mass number equals the number of

Accepted Answer

protons plus the number of neutrons

Question 41

Which of the following is an example of a chemical property?

Accepted Answer

reactivity with oxygen

Question 42

Which statement is true according to Dalton's theory?

Accepted Answer

Atoms of the same element are exactly alike

White ICP Semester I Final

Questions 42

White ICP Semester I Final

Questions 42