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STAAR Review Day 14

Total questions: 20

Worksheet time: 21mins

Name
Class
Date
1.

In the chemical formula H2OH_2O , how many hydrogen atoms are present?

a)

1

b)

2

c)

3

d)

4

2.

In the compound NaClNaCl , what is the number of sodium atoms?

a)

1

b)

2

c)

3

d)

4

3.

Identify the number of carbon atoms in the formula C6H12O6C_6H_{12}O_6 .

a)

6

b)

12

c)

18

d)

24

4.

For the chemical formula H2SO4H_2SO_4 , how many sulfur atoms are there?

a)

1

b)

2

c)

3

d)

4

5.

Identify the number of hydrogen atoms in the formula C2H5OHC_2H_5OH .

a)

5

b)

6

c)

7

d)

8

6.

Which element is a rare Earth element?

a)

Palladium

b)

Cerium

c)

Cobalt

d)

Tin

7.

What term describes a pure substance made up of two or more different elements in a specific ratio?

a)

Element

b)

Solution

c)

Compound

d)

Matter

8.

Which of the following is a pure substance made up of one type of atom?

a)

Compound

b)

Solution

c)

Element

d)

Matter

9.

What is the term for a substance that occupies space, has mass, and is composed of microscopic particles?

a)

Solution

b)

Matter

c)

Element

d)

Compound

10.

What term describes the unique combination of chemical symbols and subscripts that describe which and how many of each element are bonded together in a compound?

a)

Periodic table

b)

Chemical formula

c)

Solution

d)

Element

11.

This word is used to describe a substance that breaks apart easily and is weak and fragile

a)

Conductivity

b)

Ductile

c)

Malleable

d)

Brittle

12.

Manganese is shiny, conducts heat and electricity, and can be hammered into thin sheets. What is is?

a)

Nonmetal

b)

Metal

c)

Metalloid

d)

None of the above

13.

Silicon has a dull, metallic luster, conducts heat well, and is brittle. What is it?

a)

Nonmetal

b)

Metal

c)

Metalloid

d)

None of the above

14.

Where are the nonmetals located on the Periodic Table?

a)

On the right

b)

On the left

c)

On the stairstep

15.

Where are the metalloids located on the Periodic Table?

a)

On the right

b)

On the left

c)

On the stairsteps

16.

______________ refers to the way a metal can be hammered or rolled into thin sheets.

a)

Luster

b)

Malleable

c)

Metalloids

d)

Solid

17.

Which of the following represents an element?

a)

H2O

b)

HCl

c)

NaCl

d)

Au

e)

CaCO3

18.

Which of the following is a Metal?

a)

Sodium

b)

Carbon

c)

Oxygen

d)

Argon

19.

The colored part of the periodic table is called (a)   .

Choose from the below words
Metals
Nonmetals
Transition metals
Metalloids
20.

An element has a metallic luster. Also, it is a good conductor of heat & electricity and malleable. In which section of the periodic table would the element most likely be found?

a)

section 1

b)

section 2

c)

section 3