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abruzzese [7]
3 years ago
14

H2O is a single atom of water

Chemistry
1 answer:
defon3 years ago
4 0

H_2O is defined as a single molecule of water.

<em>This is because it contains two hydrogen atoms and one oxygen atoms that are chemically bonded together.</em>

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Where is there higher air pressure, above the land or above the water?
vagabundo [1.1K]

Answer:

The air above land also warms faster than air above the sea. Cooler higher pressure air above the ocean moves toward warmer lower pressue air above land.

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3 years ago
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Question 2 (2 points)
poizon [28]

Answer:

m_w=439.2g

Explanation:

Hello!

In this case, since the by-mass percent of a solution is a measure of the mass of the solute over the mass of the solution:

\%m/m=\frac{m_{solute}}{m_{solution}} *100\%

As we know the mass of the solution and the by-mass percent, we can compute the mass of glucose in the 480 g of solution:

m_{solute}=\frac{\%m/m*m_{solution}}{100\%}

Thus, by plugging in the data, we obtain:

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Best regards!

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3 years ago
How many theoretical plates produce a chromatography peak eluting at 12.83 min with a width at half-height of 8.7 s
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Answer-Figure P38.63a
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