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Bess [88]
3 years ago
9

What can affect the properties of a substance?

Chemistry
1 answer:
suter [353]3 years ago
3 0
The answer is D because it makes more sense than all of the other ones
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The unbalanced equation below shows the combustion of methane.
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B. 1, 2, 1, 2. You balance the equation by making sure there are equal elements on both sides.
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A sample of helium gas initially at 37.0°C, 785 torr and 2.00 L was heated to 58.0°C while the volume expanded to 3.24 L. What i
spayn [35]

Answer:

0.681 atm

Explanation:

To solve this problem, we make use of the General gas equation.

Given:

P1 = 785 torr

V1 = 2L

T1 = 37= 37 + 273.15 = 310.15K

P2 = ?

V2 = 3.24L

T2 = 58 = 58+273.15 = 331.15K

P1V1/T1 = P2V2/T2

Now, making P2 the subject of the formula,

P2 = P1V1T2/T1V2

P2 = [785 * 2 * 331.15]/[310.15 * 3.24]

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We convert this to atm: 1 torr = 0.00132 atm

515.715 Torr = 515.715 * 0.00132 = 0.681 atm

8 0
3 years ago
How are the atomic number and the number of protons related to each other?
SpyIntel [72]

Answer:

Neutral atoms of each element contain an equal number of protons and electrons. The number of protons determines an element's atomic number and is used to distinguish one element from another. ... Together, the number of protons and the number of neutrons determine an element's mass number.

Explanation:

5 0
3 years ago
What type of bond would form between aluminum and fluorine?
sesenic [268]

Answer:

I think it would be B

Explanation:

Im sorry if its wrong!!!!!!!

8 0
2 years ago
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