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garik1379 [7]
4 years ago
8

How many hydrogen atoms are there in 7.30 moles of ethanol

Chemistry
1 answer:
saveliy_v [14]4 years ago
6 0
There are 6 hydrogen atoms in every molecule of ethanol
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What two elements are present in the compounds in the last two rows of table 4​
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Balance <br> Na2O+H2O → NaOH
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Answer:
Na2O+H2O=2NaOH
Step by step exp.
Given:
Equation Na2O+H2O=NaOH
To find: Balance the equation
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3 years ago
The gasses in a hair spray can are at temperature 300k and a pressure of 30 atm, it
Sergeeva-Olga [200]

Answer:

900 K

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\displaystyle PV = nRT

Because only pressure and temperature is changing, we can rearrange the equation as follows:
\displaystyle \frac{P}{T} = \frac{nR}{V}

The right-hand side stays constant. Therefore:

\displaystyle \frac{P_1}{T_1} = \frac{P_2}{T_2}

The can explodes at a pressure of 90 atm. The current temperature and pressure is 300 K and 30 atm, respectively.

Substitute and solve for <em>T</em>₂:

\displaystyle \begin{aligned} \frac{(30\text{ atm})}{(300\text{ K})} & = \frac{(90\text{ atm})}{T_2} \\ \\ T_2 & = 900\text{ K}\end{aligned}

Hence, the temperature must be reach 900 K.

7 0
3 years ago
A rock is an
Gekata [30.6K]

Answer:

mineral

Explanation:

6 0
3 years ago
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