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Chemistry in Biology

Total questions: 24

Worksheet time: 12mins

Name
Class
Date
1.
Which defines and atom?
a)
Building Block of energy
b)
Building Block of matter
c)
charged particle
d)
smallest particle
2.
A charged atom that has lost or gained electrons is called a(n)_________
a)
Acid
b)
catalyst
c)
ion
d)
isotope
3.
an organic compound is a compound that contains________
a)
carbon
b)
hydrogen
c)
oxygen
d)
sodium
4.
A bond that is formed when electrons are shared.
a)
Carbon-14
b)
Covalent
c)
Ionic
d)
James
5.
A bond that is formed between charged ions
a)
Carbon-14
b)
Covalent
c)
Ionic
d)
James
6.

What are 2 or more elements that are chemically bonded together?

a)

Neutrons

b)

Compounds

c)

Solutions

d)

Protons

7.

This is a pure substance that consists of only one type of atom.

a)

Element

b)

Compound

c)

Electron

d)

Proton

8.

Which of the following is NOT a subatomic particle?

a)

Proton

b)

Neutron

c)

Electron

d)

Element

9.

This type of bond is formed when electrons from one atom are transferred to another atom.

a)

Ionic

b)

Covalent

c)

Adhesion

d)

Cohesion

10.

Neutrons have ___________ charge.

a)

positive +

b)

negative -

c)

no

11.

Protons have a ________ charge.

a)

positive +

b)

negative -

c)

no

12.
What is the chemical symbol for the element hydrogen
a)
H
b)
He
c)
h
d)
he
13.
What is the chemical symbol for the element Carbon
a)
ca
b)
co2
c)
C
d)
Cd
14.
Is sugar (C12H22O11) an element or a compound?
a)
Element
b)
Compound
15.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
16.

How many Hydrogen atoms are in 4H2O?

a)

6

b)

8

c)

2

d)

4

17.

How many atoms of Hydrogen are in this compound?

a)

1

b)

2

c)

3

d)

4

18.

anything that occupies space and has mass

a)

chemistry

b)

weight

c)

object

d)

matter

19.

how many elements known to exist today

a)

116

b)

117

c)

118

d)

119

20.

True or False: Air is the example of matter.

a)

True

b)

False

21.

The smallest basic unit of matter is the

a)

element

b)

compound

c)

atom

d)

cell

22.

All matter is made of

a)

atoms

b)

cells

c)

energy

d)

compounds

23.

A pure substance that is made up of one type of atom is

a)

element

b)

compound

c)

cell

d)

mixture

24.

Which one of these is NOT a sub-atomic particle?

a)

proton

b)

neutron

c)

nucleus

d)

electron

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