3 years ago

When you breathe in and out you're using your lungs

1 answer:

4 0

That is correct !! nice job

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pashok25 [27]

Answer:

because the electron is a negatively charge and have high energy

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3 years ago

Artist 52 [7]

<u>Answer:</u> The molarity of calcium hydroxide in the solution is 0.1 M

<u>Explanation:</u>

To calculate the concentration of base, we use the equation given by neutralization reaction:

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid which is $HBr$

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is $Ca(OH)_2$

We are given:

$n_1=1\\M_1=0.120M\\V_1=27.5mL\\n_2=2\\M_2=?M\\V_2=16.5mL$

Putting values in above equation, we get:

$1\times 0.120\times 27.5=2\times M_2\times 16.5\\\\M_2=0.1M$

Hence, the molarity of $Ca(OH)_2$ in the solution is 0.1 M.

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3 years ago

kykrilka [37]

Molecular

Hope it helps

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3 years ago

mestny [16]

It would. be a Solution.

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3 years ago

horsena [70]

Methylene chloride is less dense than water

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3 years ago