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Svetllana [295]
4 years ago
8

Pls help i need this before tomorrow and i need to do something ese

Chemistry
1 answer:
meriva4 years ago
5 0
<span>The highest clouds in the atmosphere are cirrocumulus, cirrus, and cirrostratus. Mid-level clouds include altocumulus and altostratus.<span>The lowest clouds in the atmosphere are stratus, cumulus, and stratocumulus.</span></span>
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To separate a mixture of hard candies and marbles, the most efficient method would be
frozen [14]
I think hand picking is best for this case.another method can be done in which first u have melt those candies with marbles.u will hart candy will melt quickly.so,when candies melt ,u will find marbles are still solid but candies are in liquid form .now take a net and purify that solution(candies and marbles).now the candies will pass through net but marbles will stuck in upper net.remove marbles now
6 0
4 years ago
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Except for the noble gases, nonmetals tend to have high electron affinities. What properties of nonmetals do you think are the r
kondor19780726 [428]

Answer:

Nonmetals are further to the right on the periodic table, and have high ionization energies and high electron affinities, so they gain electrons relatively easily, and lose them with difficulty.

Explanation:

They also have a larger number of valence electrons, and are already close to having a complete octet of eight electrons.

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3 years ago
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Of the following gases, ________ will have the greatest rate of effusion at a given temperature. Of the following gases, _______
kolezko [41]

<u>Answer:</u> From the given gases, the greatest rate of effusion is of CH_4

<u>Explanation:</u>

Rate of effusion of a gas is determined by a law known as Graham's Law.

This law states that the rate of effusion or diffusion of a gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows:

\text{Rate of diffusion}\propto \frac{1}{\sqrt{\text{Molar mass of the gas}}}

It is visible that molar mass is inversely related to rate of effusion. So, the gas having lowest molar mass will have the highest rate of effusion.

For the given gases:

Molar mass of NH_3=17g/mol

Molar mass of HCl=36.5g/mol

Molar mass of CH_4=16g/mol

Molar mass of Ar=40g/mol

Molar mass of HBr=81g/mol

The molar mass of methane gas is the lowest. Thus, it will have the greatest rate of effusion.

Hence, the greatest rate of effusion is of CH_4

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4 years ago
If the substance in the diagram was heated to T2, what is happening if the substance is allowed to approach T1?
VMariaS [17]

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b

Explanation:

5 0
3 years ago
In 2012, the number of people attending the South Coast Comic Convention was 5,000. The number of attendees continues to grow at
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11000 = 5000(1.087)^t
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3 years ago
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