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Jobisdone [24]
2 years ago
7

1) How many Joules of energy are released when 75g of water is heated

Chemistry
1 answer:
Pie2 years ago
8 0

Answer: 23,199 J

Explanation:

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Airida [17]

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You can test this by freezing water in a water bottle: when you take it out of the freezer, the cap might have popped off or cracks may have formed in the sides of the bottle.

Answer: Water expands when frozen, not contracts.

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3 years ago
Which statement describes the role of consumers in an ecosystem?
SOVA2 [1]
Either C or D. Those r the answers that make more sense.
5 0
3 years ago
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A solution has a [oh−] of 1 x 10−12. what is the poh of this solution? 2 7 10 12
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POH = - log [ OH-]

pOH = - log [ 1 x 10⁻¹²]

pOH = 12
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3 years ago
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Which phrase describes a compound that consist of two elements
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Answer:

there are no phrases

Explanation:

7 0
3 years ago
A mixture of helium, nitrogen and oxygen has a total pressure of 821 mmHg. The partial pressure of helium is 105 mmHg, and the p
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Answer:

Total partial pressure, Pt = 821 mm Hg

Partial pressure of Helium, P1 = 105 mm Hg

Partial pressure of Nitrogen, P2 = 312 mm Hg

Partial pressure of Oxygen, P3 = ? mm Hg

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Pt = P1 + P2 + P3

So, <u>P3 = 404 mm Hg</u>

4 0
2 years ago
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