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WorksheetsChemistry - 8.5DEF
Total questions: 33
Worksheet time: 32mins
Name
Class
Date
1.
How many O's are in Al₂(SO₄)₃
a)
4
b)
12
c)
7
d)
24
2.
2H2 + O2 ----> 2H2O What is the product?
a)
------>
b)
2H2O
c)
2H2+ O2
3.
How many atoms are there TOTAL in:
H2SO4
H2SO4
a)
6
b)
5
c)
7
d)
3
4.
How many total atoms are in this molecule of Calcium Phosphate?
a)
12
b)
15
c)
10
d)
11
5.
How many atoms of phosphorus are in Ba3(PO4)2 ?
a)
3
b)
2
c)
8
d)
4
6.
What direction are groups on the periodic table?
a)
Vertical
b)
horizontal
c)
sideways
d)
left to right
7.
Where can you find metals on the periodic table?
a)
To the left of the zigzag line.
b)
To the right of the zigzag line.
c)
At the top of the table.
d)
At the bottom of the table.
8.
Which of the following is not a property of metals?
a)
brittle
b)
malleable
c)
lustrous
d)
conductive
9.
Which elements have the most similar chemical properties?
a)
K and Na
b)
K and Ca
c)
K and Cl
d)
K and S
10.
Elements in the same ________ are more chemically similar.
a)
group
b)
period
c)
club
d)
table
11.
What element is in Group 2, Period 4?
a)
Ca (calcium)
b)
Br (bromine)
c)
Be (beryllium)
d)
He (helium)
12.
What element is in Group 8, Period 1?
a)
Ar (argon)
b)
H (Hydrogen)
c)
Be (beryllium)
d)
He (helium)
13.
What element is in Group 5, Period 6?
a)
Ca (calcium)
b)
Bi (bismuth)
c)
P (phosphorus)
d)
C (carbon)
14.
What are the rows (left to right) on the Periodic Table?
a)
Non-metals
b)
Metals
c)
Periods
d)
Groups
15.
Based on its position in the Periodic Table of the Elements, how many valence electrons does phosphorus (atomic number 15) have?
a)
3
b)
5
c)
8
d)
15
16.
Which element has 2 electrons in the outermost energy level?
a)
cesium (Cs)
b)
magnesium (Mg)
c)
boron (B)
d)
argon (Ar)
17.
Calcium is most like which of the following?
a)
Barium
b)
Potassium
c)
Cesium
d)
Nitrogen
18.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
19.
The majority of metalloids are located on the ________ side of the Periodic Table
a)
right (R) side of the P.T.
b)
left (L) side of the P.T.
c)
Close to the "staircase" between the transition metals and halogens
d)
the middle (M) of the P.T.
20.
Which equation is balanced?
a)
3 P4+1 O2 ---> 2 P2O3
b)
1 P4+1 O2 ---> 2 P2O3
c)
1 P4+ 3 O2 ---> 2 P2O3
d)
1 P4+ 2 O2 ---> 3 P2O3
21.
Is this equation balanced?
a)
yes
b)
no
c)
Not enough information
22.
The formation of a solid due to a chemical reaction...
a)
Precipitate
b)
State Change
c)
Physical Change
d)
Freezing
23.
A bottle with with water has a mass of 75 grams. A balloon with alka-seltzer has a mass of 5 grams. When the balloon is attached to the bottle and the reaction occurs, what will the total mass be?
a)
The total mass will be 80 grams.
b)
The total mass will be 75 grams.
c)
The total mass will be 70 grams.
d)
The total mass will be 85 grams.
24.
Marie had a beaker with a small amount of baking soda. She added a few drops of pickle juice to the baking soda and observed fizzing and bubbling. Based on her observation, which of these can Marie determine about the new substance formed by mixing the baking soda and pickle juice?
a)
A chemical reaction produced a
solid.
b)
A chemical reaction produced
a gas.
c)
No chemical reaction took place.
d)
Only a physical change happened.
25.
A granular substance is added to a liquid. Which of the following would provide evidence to suggest a chemical change has taken place?
a)
The liquid gives off heat.
b)
The granules dissolve completely.
c)
The volume of the liquid increases.
d)
The granules seem to get smaller.
26.
A student observes some sugar as it is heated and burns. The student concludes that a chemical reaction has occurred. Which of the following observations about the burning sugar provides evidence of a chemical reaction?
a)
Heat is added to the sugar crystals.
b)
The sugar melts and becomes a liquid.
c)
Gas is produced as the sugar turns black.
d)
No evidence of chemical reaction is present.
27.
Elements in the DARK gray area can best be described as -
a)
Malleable
b)
Brittle
c)
Dull
d)
Poor conductors
28.
What does luster mean?
a)
Breaks into pieces
b)
can be hammered into thin sheets
c)
No shine
d)
reflects light, shiny
29.
An element has properties of BOTH metals and nonmetals. WHERE would it be found in the periodic table?
a)
To the right
b)
To the left
c)
on the zig zag line
30.
All of the following would classify an element as a metal except?
a)
Dull
b)
Luster
c)
Malleable
d)
Hard
31.
Nonmetals occur to the ________of the dark zig-zag on the periodic table.
a)
A. right
b)
B. middle
c)
C. left
32.
Which element in period four is a metalloid?
a)
Silicon
b)
Gallium
c)
Arsenic
d)
Titanium
33.
How would this element be classified?
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Metamorphic
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