Free Printable CLASH OF CLASSES-Chemistry

1.

WHICH OF THE FOLLOWING IS A BALANCED EQUATION?

a)

$H_2\ +Br_2\ \rightarrow\ 2HBr$

b)

$H_2\ +Br_2\ \rightarrow\ HBr$

c)

$H_2\ +2Br_2\ \rightarrow\ 2HBr$

d)

$2H_2\ +Br_2\ \rightarrow\ 2HBr$

2.

THE SHADED ROW IN THE TABLE IS CALLED A ___

a)

COLUMN

b)

FAMILY

c)

GROUP

d)

PERIOD

3.

The elements Fluorine, Chlorine, Bromine, and Iodine are all found in the same group (17) on the periodic table. They are grouped together because

a)

same number of valence electrons

b)

all metals

c)

same atomic mass

d)

same size

4.

Which element has the LEAST amount of protons?

a)

Selenium

b)

Oxygen

c)

Sulfur

d)

Tellurium

5.

Which is an example of a physical change?

a)

Burning Wood

b)

rusting Iron Pan

c)

Mixing baking soda & vinegar

d)

melting ice cubes

6.

Which one of the following is a compound?

a)

C

b)

Si

c)

CO

d)

He

7.

What is the temperature at which a substance

changes from a Solid to a Liquid?

a)

Melting point

b)

Freezing point

c)

Boiling point

d)

Condensation point

8.

The temperature at which all

molecular motion stops is know as

a)

Kelvin

b)

Celsius

c)

Solid state

d)

Absolute zero

9.

Which of the following types of elements

would bond together to form ionic bonds?

a)

two nonmetals

b)

two metals

c)

metal and nonmetal

d)

metalloid and metal

10.

When covalent bonds form

a)

Protons convert into Neutrons

b)

Electrons are shared

c)

Electrons are removed

d)

Neutrons are lost

11.

Which particles are responsible for the

chemical properties of an element?

a)

protons

b)

neutrons

c)

valence electrons

d)

ions

12.

The mass of a liquid is 45 grams.
The volume of the liquid is 30 mL.
What is the density of the liquid?

$D=\frac{m}{V}$

a)

0.67 g/mL

b)

30 g/mL

c)

1350 g/mL

d)

1.5 g/mL

13.

Which element has 16 neutrons, 15 protons, and 15 electrons?

a)

Sulfur (S)

b)

Phosphorus (P)

c)

Gallium (Ga)

d)

Zinc (Zn)

14.

$Ca\ +2H_2O\ \rightarrow\ Ca\left(OH\right)_2+H_2$ How many different elements are involved in the chemical reaction shown?

(a)

15.

Which element will most likely form covalent bonds with Fluorine?

a)

carbon

b)

potassium

c)

neon

d)

tin

16.

Which material will complete the chart?

a)

Gold, because it's a shiny material

b)

Salt, because it is made of two types of atoms

c)

Nitrogen, because it is a gas in the atmosphere

d)

Carbon, because it is part of many different molecules

17.

Name the phase change: The change in state from a solid directly to a gas without passing through the liquid state.

a)

Vaporization

b)

Condensation

c)

Sublimation

d)

Ionization

18.

Most of the mass of an atom is located in the _.

(a)

19.

What side of the Periodic Tables would nonmetals be found?

a)

left side

b)

right side

20.

What subatomic particle has a negative charge?

(a)

CLASH OF CLASSES-Chemistry

Total questions: 20

Worksheet time: 12mins

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