Which substance can be broken down by chemical means?

Chemistry

2 answers:

zepelin [54]4 years ago

4 0

Methanol is the substance that can be broken down by chemical means, the remaining ones are elements.

bearhunter [10]4 years ago

4 0

4. Methanol

Methanol is a compoud. The rest of the choices are elements. Elements can't be broken down, and compounds can.

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4. To how much water should 50 mL of 12 M hydrochloric acid be added to

Novosadov [1.4K]

Answer : The volume of water added are, 15 mL

Explanation :

Formula used :

$M_1V_1=M_2V_2$

where,

$M_1\text{ and }V_1$ are the initial molarity and volume of HCl.

$M_2\text{ and }V_2$ are the final molarity and volume of water.

We are given:

$M_1=12M\\V_1=50mL\\M_2=40M\\V_2=?$

Putting values in above equation, we get:

$12M\times 50mL=40M\times V_2\\\\V_2=15mL$

Hence, the volume of water added are, 15 mL

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3 years ago

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zhuklara [117]

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