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In-s [12.5K]
3 years ago
10

Chemistry help! Thanks to anyone who helps!

Chemistry
1 answer:
zmey [24]3 years ago
5 0
A: 2-methyl-2-propanom
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How does the VSEPR theory explain molecular shape?
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Answer:

D. Electron pairs repelling each other push atoms apart

Explanation:

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3 years ago
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Which of the following is accurate in describing the placement and classification of iodine?
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You can answer this question by only searching the element in the periodic table.

The atomic number of iodine, I, is 53. It is placed in the column 17 (this is the Group) and row 5 (this is the Period).

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Explain what happens to substances during a chemical change
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How many mL of a 4% mass/volume Mg(NO3)2 solution would contain 1.2 grams of magnesium nitrate?
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7 0
3 years ago
We consider a spherical air bubble rising through a water tank. The pressurepinside the bubble isequal to its surrounding pressu
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The answer is a change in internal energy causes work to be done and heat to flow into the system.  

<u>Explanation:</u>

Boyle's law says, PV=RT

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  • When a bubble is present in deep water it has water pressure and atmospheric pressure. Then the Volume increases when water pressure raises which is proportional to the depth reduces.
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  • If the bubble travels from the bottom to the top or vice-versa, it's going to lose or gain heat in a way that must be quite hard to measure.
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