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ss7ja [257]
3 years ago
15

True or false?

Chemistry
1 answer:
Virty [35]3 years ago
3 0
The answer would be true
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Which choice is not a physical property of matter?
PtichkaEL [24]

Answer: The Correct answer is D.) Heat of combustion

Explanation:

6 0
2 years ago
I need help I don’t understand this and it’s due tmr!
Lynna [10]

Answer:

the second one because it has heat waves sending out

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2 years ago
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A gas has a volume of 25.6 L at a temperature of 278 K. What will be the new temperature, in C, if
Inessa05 [86]
<h2>Hello!</h2>

The answer is: -97.37° C

<h2>Why?</h2>

According to the Charles and Gay-Lussac's Law we have that:

\frac{V}{T}=k

Where:

<em>v</em> is the volume of the gas

<em>t</em> is the temperature of the gas

<em>k </em>is the proportionality constant

From the Gay-Lussac's Law we also have the following relation:

\frac{V1}{T1}=\frac{V2}{T2}

Since we need to find the new temperature (T2) we can use the last equation:

\frac{V1}{T1}=\frac{V2}{T2}\\\\T2=\frac{V2*T1}{V1}=\frac{16.2L*278K}{25.6L}=175.92K

We are asked to find the temperature in Celsius degrees, so, we must convert the result (in K) to Celsius degrees:

Celsius=K-273.15=175.92-273.15=-97.37

So, the temperature is -97.37° C

Have a nice day!

7 0
3 years ago
How many pairs of autosomal chromosomes does each person without chromosomal abnormalities have?
enot [183]
C. 23 pairs

There are a total of 46 chromosomes
6 0
2 years ago
Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation: ()bao
just olya [345]

Based on the given chemical equation, the value of coefficient that is used in the reaction before each molecule is 1.

<h3>What is balanced equation?</h3>

Balanced chemical equations are those equation in which each element is present in equal amount on both side of the chemical reaction.

Given chemical reaction is:

BaO₂ + H₂SO₄ → H₂O₂ + BaSO₄

Above reaction is balanced as all elements are present in equal amounts on both sides. So, the value of coefficients is 1.

Hence the required coefficients is 1.

To know more about balance equations, visit the below link:

brainly.com/question/26227625

3 0
2 years ago
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