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Gnoma [55]
3 years ago
13

Can someone help me to answer the questions 8 and 9

Chemistry
1 answer:
Elena-2011 [213]3 years ago
3 0
Idk it's stupid do it yourself
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What source of thermal energy does an internal combustion engine use?
Dafna1 [17]

Answer:

D

Explanation:

The source of the thermal energy in a combustion engine is the spark from the spark plug that ignites the fuel and air mixture converting chemical energy into thermal energy.

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Which of the following environments is most likely to have days with a relative humidity of less than 10% (ten percent)?
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Answer:

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Explanation:

Desert barely have any water therefore they can barely produce any amount of humidity

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3 years ago
Using principles of atomic structure, explain why the atomic radius of Te is less than the ionic radius of Te2− . Photoelectron
ValentinkaMS [17]

Answer:

See explanation

Explanation:

Let us recall that a negative ion is formed by addition of electrons to an atom. When electrons are added to the atom, greater interelectronic repulsion increases the size of the Te^2− hence it is greater in size than Te atom. Therefore, the ionic radius of Te^2− is greater than the atomic radius of Te.

In the second question, oxygen is positioned so far to the right because it has a far smaller nuclear charge compared to Te. Hence in the PES spectrum, the 1s sublevel of oxygen lies far to the right of that of Te.

3 0
3 years ago
Upon balancing the equation what is the smallest possible integers that goes in front O₂? HBr + O₂ ➞ H₂O + Br₂ *
Leokris [45]

Answer:

1

Explanation:

4 HBr + O2 → 2H 20 + 2Br 2

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How does Fluoroanimonic acid melt things?
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tall me is this what you looking for

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3 years ago
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