3 years ago

Why is food coloring added to water and it turning blue is a physical change

Chemistry

1 answer:

adell [148]3 years ago

4 0

Answer:

No new substance is formed.

Explanation:

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You must make 1 L of 0.2 M acetic acid (CH3COOH). All you have available is concentrated glacial acetic acid (assay value, 98%;

Sergeu [11.5K]

Answer:

The correct answer is "11.44 ml".

Explanation:

Molarity,

= 0.2 M

Density,

= 1.05 g/ml

Volume,

= 1 L

As we know,

⇒ $Molarity=\frac{No. \ of \ moles }{Volume \ of \ solution}$

or,

⇒ $No. \ of \ moles=Molarity\times Volume$

On putting the values, we get

⇒ $=0.2\times 1$

⇒ $=0.2 \ moles$

Now,

⇒ $No. \ of \ moles=\frac{Mass \ taken}{Molecular \ mass}$

or,

⇒ $Mass \ taken=No. \ of \ moles\times Molecular \ mass$

⇒ $=0.2\times 60.05$

⇒ $=12.01 \ gram$

hence,

⇒ $Density= \frac{Mass }{Volume}$

or,

⇒ $Volume=\frac{Mass}{Density}$

⇒ $=\frac{12.01}{1.05}$

⇒ $=11.44 \ ml$

7 0

3 years ago

Solid solution are called:

forsale [732]

Answer:

Chemical solution in solid form; whose solvent's crystal structure is not altered by solute

Explanation:

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3 years ago

Which bonds are found inside a water molecule, between hydrogen and oxygen?

Papessa [141]

Hydrogen bond is found between water molecule if im correct

5 0

3 years ago

The primary method in which two connected objects transfer energy by heat flow is _____.

swat32

Conduction is heat tranfer through physical contact. Hope this helps. :)

7 0

3 years ago

Read 2 more answers

Which is always going to be the highest ionization energy?

Law Incorporation [45]

Answer: I think it's B.

Explanation:

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1 year ago