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Anastasy [175]
3 years ago
9

What happens when the temperature of a substance decreases significantly?

Physics
2 answers:
sweet [91]3 years ago
7 0

Answer is .... A I think

Zielflug [23.3K]3 years ago
6 0

Answer:

D. Most substances will contract

Explanation:

I took the test; this is the correct answer (:

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What is the difference between collinear and coplanar
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Answer:

Collinear is when points are in the same straight line but coplanar is when points are all on the same plane.

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What is the mass, in grams, of 2.00 moles of H2O?
tia_tia [17]

Answer:

36g

Explanation:

Given parameters:

Number of moles of H₂O = 2moles

Unknown:

Mass of  H₂O = ?

Solution:

To solve this problem, use the expression below:

   Mass of  H₂O = number of moles x molar mass

Molar mass of  H₂O = 2(1) + 16  = 18g/mol

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4 0
2 years ago
When not in a vacuum, what force causes objects in freefall to fall at different speeds??
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