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WorksheetsConservation of Matter (Group Quiz)
Total questions: 11
Worksheet time: 1hrs 6mins
Name
Class
Date
1.
Who is your team?
(FULL NAMES)
4 lines
2.
What is matter?
4 lines
3.
What is the Law of Conservation of Mass?
4 lines
4.
What happens to matter during physical changes?
4 lines
5.
What happens to matter during chemical changes?
4 lines
6.
What is the chemical equation for photosynthesis?
a)
6CO2 + 6H2O + light -> C6H12O6 + 6O2
b)
C6H12O6 + 6O2 -> 6CO2 + 6H2O + light
c)
2H2 + O2 -> 2H2O
d)
H2O -> H2 + O2
7.
What percentage of the universe's mass consists of dark matter?
a)
50%
b)
25%
c)
75%
d)
100%
8.
In a reaction A + B ----> C, reactant A has 5g and product C has 9g. How many grams does reactant B should have?
a)
4g
b)
5g
c)
9g
d)
14g
9.
The Coefficient (3) in the Chemical Formula, 3H2O, tells you how many _____________ there are.
a)
Atoms of Hydrogen
b)
Atoms of Oxygen
c)
Atoms of Water
d)
Molecules of Water
10.
Which Chemical Equation is Balanced?
a)
CH₄+O₂------CO₂+2H₂O
b)
H₂+O₂-----2H₂O₄
c)
4Al+3O₂-----2Al₂O₃
11.
When CaCO3 is heated, it forms CaO and CO2. Which of these statements best describes the mass of the products if 100 g of CaCO3 is heated?
a)
The difference in the products’ masses is equal to the mass of the CaCO3
b)
The sum of the products’ masses is less than the mass of the CaCO3
c)
The mass of each product is equal to the mass of the CaCO3
d)
The sum of the products’ masses equals the mass of the CaCO3
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