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mixas84 [53]
3 years ago
10

Calculate the speed of a marble that rolls 9 cm in 4 seconds

Chemistry
1 answer:
cupoosta [38]3 years ago
6 0

Answer:

2.25

Explanation:

9/4

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25.9cm^3 divided by 6.32 g/cm^3
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4 0
3 years ago
Read 2 more answers
How did the mass change when the copper coin was made to look silver?
il63 [147K]

We have that The  the mass change when the copper coin was made to look silver is an increase in mass

Correct option C

It increased.

It is important to note that the copper coin after its cutting into shape will have a specific mass or weight and the silver coating solution will also have a net value of mass or weight

Therefore

The  the mass change when the copper coin was made to look silver is an increase in mass

Correct option C

It increased.

For more information on this visit

brainly.com/question/17756498?referrer=searchResults

7 0
2 years ago
What best explains the type of energy present in natural gas?
tamaranim1 [39]

Answer:

1. true

2.false

3. true

4 0
3 years ago
How does a buffer work?
Margarita [4]

Answer:

It bonds with the added H+ or OH in solution.

Explanation:

8 0
3 years ago
Soda pop is carbonated with CO2. Mark puts one bottle of soda pop in the refrigerator and leaves the other out in the hot sunlig
fomenos

Answer:

The one left in the hot sunlight.

Explanation:

The solubility of gases decreases when temperature increases. The gas in the soda pop (CO2) left in the sun will not stay dissolved as much as the on left in the refrigerator.

3 0
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