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Aliun [14]
3 years ago
12

What do these substances have in common? apple juice, helium gas, salt water and copper wire

Chemistry
2 answers:
JulsSmile [24]3 years ago
7 0

They are all compounds! Good Luck Mate!

Llana [10]3 years ago
6 0

Answer;

They are compounds

Explanation;

A compound is a substance formed when two or more elements are chemically joined. Water, salt, and sugar are examples of compounds.

When the elements are joined, the atoms lose their individual properties and have different properties from the elements they are composed of.

Elements are substances that cannot be separated into simpler substances.

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A 2.04 g lead weight, initially at 10.8 oC, is submerged in 7.62 g of water at 52.3 oC in an insulated container. clear = 0.128
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Answer: The final temperature of both the weight and the water at thermal equilibrium is 50.26^{o}C.

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Let us assume that T be the final temperature. Therefore, heat lost by water is calculated as follows.

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          = 7.62 g \times 4.184 J/^{o}C \times (52.3 - T)

Now, heat gained by lead will be calculated as follows.

       q = mC \times \text{Temperature change of lead}  

           = 2.04 \times 0.128 \times (T - 11.0)

According to the given situation,

     Heat lost = Heat gained

7.62 g \times 4.184 J/^{o}C \times (52.3 - T) = 2.04 \times 0.128 \times (T - 11.0)

        T = 50.26^{o}C

Thus, we can conclude that the final temperature of both the weight and the water at thermal equilibrium is 50.26^{o}C.

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