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vovangra [49]
3 years ago
6

Which process is a chemical change? burning a match boiling water melting ice breaking glass

Chemistry
2 answers:
Makovka662 [10]3 years ago
6 0

Answer:

A. Burning A Match

Explanation:

Just tested

Tatiana [17]3 years ago
5 0

The process, which is a chemical change is BURNING A MATCH.

In chemistry, there are two basic types of change, these are physical and chemical change. In physical change, no new material is formed and the process is reversible while in chemical change new materials are formed and the process is irreversible. In the question given above, the burning of match will result in a new product, that is, ash and the process is irreversible.

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Calculate a reasonable amount (mass in g) of your unknown acid to use for a titration. You will want about 30 mL of titrant to g
Vinil7 [7]

Answer:

"0.60 g" is the appropriate solution.

Explanation:

The given values are:

Volume of base,

= 30 ml

Molarity of base,

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As we know,

⇒  Molarity=\frac{Number \ of \ moles \ of \ base}{Number \ of \ solution}

On substituting the values, we get

⇒           0.05=\frac{Number \ of \ moles \ of \ base}{30\times 10^{-3}}

⇒  Number \ of \ moles \ of \ base=0.05\times 30\times 10^{-3}

⇒                                             =1.5\times 10^{-3}  

hence,

⇒  Moles \ of \ acid=\frac{Mass \ of \ acid}{Molar \ mass \ of \ acid}

On substituting the values, we get

⇒  1.5\times 10^{-3}=\frac{Mass \ of \ acid}{400}

⇒  Mass \ of \ acid=1.5\times 10^{-3}\times 400

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8 0
3 years ago
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Answer:

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Explanation:

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Answer:

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Explanation:

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