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gizmo_the_mogwai [7]
3 years ago
11

Pls help me I don’t understand it’s for my science class.

Chemistry
2 answers:
navik [9.2K]3 years ago
6 0
So just remember Hetero= ONE and Homo= 2
LenKa [72]3 years ago
4 0
I agree and Those aren’t elements and compounds
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Why do scientists continue to investigate certain topics like the atom?
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to understand the human life

Explanation:

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3 years ago
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A 8L sample of gas at 250 K is cooled to 75 K. What is the volume of the gas after it is cooled?
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by \: Charles'\: law: \:  \\  \frac{v_{1}}{t_{1}}  =  \frac{v_{2}}{t_{2}}  \\

Where v is the volume(in L) and t is the temperature(in °K)

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7 0
2 years ago
A weather system moving through the American Midwest produced rain with an average pH of 5.02. By the time the system reached Ne
bulgar [2K]

Answer:

The rain falling in New England is 2.29 times more acidic than the one in the American Midwest.

Explanation:

The acidity of a solution depends on the concentration of H⁺ ions ([H⁺]). We can calculate this concentration from the pH using the following expression.

pH = -log ([H⁺])

American Midwest

pH = -log ([H⁺])

5.02 = -log ([H⁺])

[H⁺] = antilog (-5.02) = 9.55 × 10⁻⁶ M

New England

pH = -log ([H⁺])

4.66 = -log ([H⁺])

[H⁺] = antilog (-4.66) = 2.19 × 10⁻⁵ M

The ratio of concentrations is:

\frac{2.19 \times 10^{-5} M  }{9.55 \times 10^{-6} M} =2.29

The rain falling in New England is 2.29 times more acidic than the one in the American Midwest.

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3 years ago
Pleaseeeeee hellllllpppp
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