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Addressing Gaps

Total questions: 22

Worksheet time: 17mins

Name
Class
Date
1.

Which scientist created the compound microscope?

a)

Hooke

b)

Jansen

c)

Virchow

d)

Van Leeuwenhook

2.

What organelle packages proteins?

a)

Ribosome

b)

Mitochondria

c)

Golgi Body

d)

Cell Membrane

3.

A group of organs working together create an

a)

organelle

b)

organ

c)

organ system

d)

organism

4.

Which organelle is the control center of the cell? (It is the BOSS.)

a)

Nucleus

b)

Nucleolus

c)

Golgi Body

d)

Mitochondria

5.

"Small organs" of the cell that carry out specific functions

a)

Organelles

b)

Organs

c)

Cell Wall

d)

Cell

6.

supports and protects the cell; only in plant cells

a)

Cell Window

b)

Cell Wall

c)

Cell Membrane

d)

Cover

7.
A microscope is an instrument that.
a)
makes faraway objects look closer.
b)
makes small objects appear larger.
c)
decreases the size of small objects.
d)
increases the size of small objects.
8.
If the eyepiece of your scope has a power of 10, and the selected objective lens has a power of 20,what is the total magnification?
a)
20x
b)
30x
c)
200x
d)
2000x
9.
What is the chemical symbol for the element hydrogen
a)
H
b)
He
c)
h
d)
he
10.
What is the chemical symbol for the element Silicon
a)
S
b)
Si
c)
si
d)
Sl
11.
What is the chemical symbol for the element Silver
a)
S
b)
Si
c)
Au
d)
Ag
12.

What is the chemical formula of Magnesium chloride?

a)

MgCl

b)

MgCl2

c)

MgC

d)

MgC2

13.

What is the chemical formula of sodium sulfate?

a)

SSO4

b)

SoSO4

c)

NaSO4

d)

Na2SO4

14.

What is the name of this chemical, H2SO4?

a)

Hydrogen sulfate

b)

Sulfuric acid

c)

Sulfate

d)

Sulfate hydrogen

15.
The relative atomic mass is the average mass of an atom compared to 
a)
the mass of a carbon-12 atom.
b)
1/12 the mass of a carbon-12 atom
c)
the mass of a hydrogen atom
d)
1/12 the mass of a hydrogen atom
16.
The relative molecular mass of a compound is equal to the sum of its
a)
Atomic mass
b)
Atomic number
c)
Oxidation number
d)
Valence electrons
17.
What is the relative molecular mass of fluorine gas, F2?
a)
19
b)
38
c)
9
d)
18
18.
The formula of a compound is M(OH)2. Given that the Mr of the compound is 98, calculate the Ar of M.
a)
32
b)
64
c)
81
d)
94
19.

What is the relative formula mass of ammonium nitrate, NH4NO3 ?

[Relative atomic mass: N, 14; H, 1; O, 16]

a)

76

b)

79

c)

80

d)

90

20.
What is the relative formula mass of NaOH?
a)
20
b)
39
c)
40
d)
45
21.

Calculate the relative formula mass of

aluminium sulphate, Al2(SO4)3


[Relative atomic mass:

O = 16 ; Al = 27 ; S = 32 ; Cl = 35.5 ; Cu = 64 ]

(a)  

22.

Calculate the relative formula mass of

copper (ii) chloride, CuCl2


[Relative atomic mass:

O = 16 ; Al = 27 ; S = 32 ; Cl = 35.5 ; Cu = 64 ]

(a)  

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