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Assoli18 [71]
3 years ago
10

Please help with chemistry homework

Chemistry
1 answer:
Hitman42 [59]3 years ago
4 0

Answer:

I and IV are the answers.

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inysia [295]

Answer:

It have 31 electrons

It have 31 electrons

4 0
3 years ago
To create hydrogen and oxygen from water, you would need to perform which type of reaction?
Murrr4er [49]
B. Decomposition is the correct answer~
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Fill in the missing piece of the table​
djyliett [7]

Answer: The final volume V_2 is 263.09 ml

Explanation:

To calculate the final volume of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where,

V_1\text{ and }T_1 are the initial volume and temperature of the gas.

V_2\text{ and }T_2 are the final volume and temperature of the gas.

We are given:

V_1=156ml\\T_1=215^oC=(215+273)K=488K\\V_2=?\\T_2=550^0C=(550+273)K=823K

Putting values in above equation, we get:

\frac{156}{488}=\frac{V_2}{823}\\\\V_2=263.09ml

Thus final volume V_2 is 263.09 ml

5 0
3 years ago
N2 + 3H2 2NH3 How many molecules of H2 are represented in the reaction? How many nitrogen atoms are represented in the reactants
Tanzania [10]
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2 moles of NH3 are formed.
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(04.02 LC) Based on the cell theory, which of the following is true?
prohojiy [21]

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c

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there are billions of cells in living things. We are made out of millions of cells

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