Law of Conservation of Mass Practice
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Last updated 10 months ago
15 questions
Required
5
Define the law of conservation of mass:
Matter ___________ be ____________ or______________
Other Answer Choices:
can
balanced
cannot
created
unbalanced
reformed
destroyed
will
conserved
Required
5
According to the Law of Conservation of Mass, the mass of reactants and products are__________
Other Answer Choices:
equal
unknown
chemically bonded
unbalanced
missing
neutrally charged
Required
2
What is the difference between an open system and a closed system?
What is the difference between an open system and a closed system?
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
open system | arrow_right_alt | systems that can result in a lower mass of the reactants in the products |
closed system | arrow_right_alt | systems that always result in an equal mass of the reactants in the products |
Required
5
What is the missing value on the table?
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What is the missing value on the table?
REMEMBER TO ADD THE UNIT
Required
5
What is the missing value on the table?
REMEMBER TO ADD THE UNIT
What is the missing value on the table?
REMEMBER TO ADD THE UNIT
Required
5
What is the missing value on the table?
REMEMBER TO ADD THE UNIT
What is the missing value on the table?
REMEMBER TO ADD THE UNIT
Required
5
What is the missing value on the table?
REMEMBER TO ADD THE UNIT
What is the missing value on the table?
REMEMBER TO ADD THE UNIT
Required
5
What is the missing value on the table?
REMEMBER TO ADD THE UNIT
What is the missing value on the table?
REMEMBER TO ADD THE UNIT
Required
5
What is the missing value on the table?
REMEMBER TO ADD THE UNIT
What is the missing value on the table?
REMEMBER TO ADD THE UNIT
Required
10
What is the missing value on the table?
REMEMBER TO ADD THE UNIT
What is the missing value on the table?
REMEMBER TO ADD THE UNIT
Required
12
Hydrogen & oxygen react chemically to form water. How much water (H₂O) would form if 14.8g of hydrogen (H₂) reacted with 34.8g of oxygen (O₂)?
(H₂ + O₂ → H₂O)
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Hydrogen & oxygen react chemically to form water.
How much water (H₂O) would form if
14.8g of hydrogen (H₂) reacted with 34.8g of oxygen (O₂)?
(H₂ + O₂ → H₂O)
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Required
12
When ammonium nitrate (NH₄NO₃) explodes, the products are nitrogen, oxygen, & water.
When 40g of ammonium nitrate explode, 14g of nitrogen and 8g of oxygen form. How many grams of water form?
(NH₄NO₃ → N₂ + O₂ + H₂O)
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When ammonium nitrate (NH₄NO₃) explodes, the products are nitrogen, oxygen, & water.
When 40g of ammonium nitrate explode, 14g of nitrogen and 8g of oxygen form. How many grams of water form?
(NH₄NO₃ → N₂ + O₂ + H₂O)
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Required
12
A solid mass of 25g is mixed with 60g of a solution. A chemical reaction takes place and a gas is produced. The final mass of the mixture is 75 g.
What is the mass of the gas released?
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A solid mass of 25g is mixed with 60g of a solution. A chemical reaction takes place and a gas is produced. The final mass of the mixture is 75 g.
What is the mass of the gas released?
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Required
12
If 115g of a substance reacts with 84g of another substance.What will be the mass of the products after the reaction?
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If 115g of a substance reacts with 84g of another substance.
What will be the mass of the products after the reaction?
REMEMBER TO ADD THE UNIT
Required
0