P.1.4 Test
Authored by Cindy Gillespie
Science
8th Grade
NGSS covered
Used 57+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which chemical reaction supports the law of conservation of mass?
H2O → H2 + O2
H2O → 2H2 + O2
H2O → H2 + 2O2
2H2O → 2H2 + O2
Tags
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many methane (CH4) molecules would be needed to produce 13 carbon dioxide (CO2) molecules?
CH4 + 2O2 → CO2 + 2H2O
4
13
26
52
Tags
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A 12-gram sample of magnesium (Mg) reacts with an 18-gram sample of sulfur (S) when heated. Magnesium sulfide (MgS), a solid crystalline material, is formed. What mass of MgS is most likely produced?
6 grams
30 grams
60 grams
216 grams
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If a chemical reaction such as photosynthesis begins with 6 atoms of carbon (C), how many atoms of carbon (C) should be in the products?
12 atoms of carbon
6 atoms of carbon
3 atoms of carbon
2 atoms of carbon
Tags
NGSS.MS-PS1-5
NGSS.MS-LS1-6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When 15 grams of zinc are combined with 20 grams of hydrochloric acid, two new products are created. What will be the combined weight of the products?
5 grams
15 grams
20 grams
35 grams
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
How does a balanced chemical equation satisfy the Law of Conservation of Mass?
During a chemical reaction, the total amount of matter stays the same.
During a chemical reaction, matter is destroyed.
During a chemical reaction, one or
During a chemical reaction, the total number of atoms increases.
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If 100 grams of vinegar and 5 grams of baking soda are poured in a container, a small amount of gas will be produced. What will the final mass of the products be if the gas is trapped in the container?
100 grams
104 grams
105 grams
110 grams
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
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