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Len [333]
4 years ago
5

Which statement best describes the energy of activation?

Chemistry
2 answers:
Furkat [3]4 years ago
6 0

activation energy start off chemical reaction

iren [92.7K]4 years ago
4 0

Answer:

Explanation:

it is more quickly overcome when the temperature increases

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How might the oceans on early earth have formed?
baherus [9]
Gradual leakage of water stored in hydrate minerals of Earth's<span> rocks could </span>have formed<span> a portion of its water. Water </span>may<span> also </span>have<span> come from volcanism: water vapor in the atmosphere that originated in volcanic eruptions </span>may have<span> condensed to form rain, slowly filling </span>Earth's<span> oceanic basins. So, the answer would be C.

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3 years ago
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A pascal is a unit for measuring pressure. Which of the following is equal to a pascal unit?
Assoli18 [71]
The pascal (pronounced pass-KAL and abbreviated Pa) is the unit of pressure or stress in the International System of Units (SI). It is named after the scientist Blaise Pascal. One pascal is equivalent to one newton (1 N) of force applied over an area of one meter squared (1 m2).
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The temperature of a sample of water from the faucet increases from 22.7°C to 48.9°C when 3,710J are applied through electric sh
MakcuM [25]

Answer:

33.8.

Explanation:

Hello,

In this case, since the used equation is:

Q=mCp(T_2-T_1)

Whereas the specific heat is 4.184 J/(g°C), we compute the mass as follows:

m=\frac{Q}{Cp(T_2-T_1)}

Thus, the mass turns out:

m=\frac{3,710J}{4.184\frac{J}{g\°C} (48.9-22.7)\°C}\\\\m=33.8g

And without units:

33.8.

Best regards.

8 0
3 years ago
Pls answer
nataly862011 [7]

Answer:

The sound wave travelled more quickly through the glass of water than the metal pole.

The sound wave travelled the fastest through the helium.

The sound wave travelled the slowest through the metal pole.

These 3 are most likely true.

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An element has this information:
SVETLANKA909090 [29]

Answer:

hydrogen

Explanation:

5 0
3 years ago
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