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Chemistry

2 answers:

Digiron [165]2 years ago

8 0

Q) which sentence uses emitting correctly ?

<h3>Answer :</h3><h2>(c) Charlie heard birds emitting a very strange sound .</h2>

Explanation :

Emitting means ' to give off ' , since birds are giving off a strange sound , we say " Charlie heard birds emitting a very strange sound " .

sertanlavr [38]2 years ago

3 0

Answer:

its either A or C

Explanation:

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1 year ago

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3 years ago

3) During the day at 27°C a cylinder with a sliding top contains 20.0 liters

tatiyna

Answer:

$T_2=12\°C$

Explanation:

Hello there!

In this case, according to the Charles' law equation which help us to understand the directly proportional relationship between volume and temperature:

$\frac{T_2}{V_2}=\frac{T_1}{V_1}$

Thus, by solving for the final temperature, T2, and making sure we use the temperatures in Kelvin, we can calculate the final temperature as shown below:

$T_2=\frac{T_1V_2}{V_1} \\\\T_2=\frac{(27+273)K*19L}{20.0L}\\\\T_2=285-273\\\\T_2=12\°C$