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Tresset [83]
3 years ago
5

Consider the following statements.

Chemistry
1 answer:
Vsevolod [243]3 years ago
3 0

Answer: B and C only

Explanation:

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a piece of food is burned in a calorimeter that contains 200.0g of water. If the temperature of the water rose from 65.0°C to 83
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Answer: 15062.4 Joules

Explanation:

The quantity of heat energy (Q) required to heat a substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Since,

Q = ?

Mass of food = 200.0g

C = 4.184 j/g°C

Φ = (Final temperature - Initial temperature)

= 83.0°C - 65.0°C = 18°C

Then, Q = MCΦ

Q = 200.0g x 4.184 j/g°C x 18°C

Q = 15062.4 J

Thus, 15062.4 joules of heat energy was contained in the food.

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3 years ago
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Answer:

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All Molecules in a compound are the_____<br> Please Help I don't know the answer.
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A compound<span> is a </span>molecule<span> that contains at least two different elements. </span>All compounds<span> are </span>molecules<span> but not </span>all molecules<span> are </span>compounds<span>. </span>Molecularhydrogen (H2<span>), </span>molecular<span> oxygen (O</span>2<span>) and </span>molecular<span> nitrogen (N</span>2) are notcompounds<span> because each is composed of a single element.</span>
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Explain the difference between cocl2 6h2o and anhydrous cobalt chloride
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An endothermic reaction occurs when water and ammonium nitrate are combined. Which of the following statements correctly
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C.Energy is absorbed because the products have more chemical energy than the reactants.

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