Please help meeee, I will brainliest. and Put it into your own words, if u use from internet.

Chemistry

1 answer:

Step2247 [10]3 years ago

4 0

Answer:

energy is used to break bonds in reactants and energy is released when new bonds form in products.The law of conservation of energy states that matter cannot be created or destroyed. Whether a chemical reaction absorbs or releases energy there is no overall change in the amount of energy during the reaction.

Explanation:

Sorry if im wrong

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Does a helium balloon have a larger volume when it is heated or cooled?<br>

Nadusha1986 [10]

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3 years ago

Ordinary water boils at 100°C. Can it be made to boil at 95°C or 105°C.

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It can be done. Normally the boiling point of water is 100°C. It will boil at temperature greater than 100°C more quickly. Water can be boiled at 95°C but for that the atmospheric pressure of the water should be decreased which will decrease the boiling point of water.

<h3>Concept :</h3>

To boil water at 95°C, decrease the atmospheric pressure.

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katovenus [111]

<u>Answer:</u> The final temperature of the coffee is 43.9°C

<u>Explanation:</u>

To calculate the final temperature, we use the equation:

$q=mC(T_2-T_1)$