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3 years ago

What would be the temperature change if 3.0 g of water absorbed 15 J of heat? Specific Heat capacity of water= 4.18 J/gºC

Chemistry

1 answer:

kati45 [8]3 years ago

3 0

Not sure but I think it’s B try it out and double check it

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What amount of heat is released when the temperature of 450.0 g of a

Molodets [167]

Answer:

$\boxed {\boxed {\sf 4038.48 \ Joules}}$

Explanation:

Since we are given the mass, specific heat, and change in temperature, we should use this formula for heat:

$q=mc\Delta T$

The substance's mass is 450.0 grams, the specific heat is 1.264 J/g°C, and the change in temperature is 7.1 °C.

$m= 450.0 \ g \\c= 1.264 \ J/g \textdegree C\\\Delta T= 7.1 \ \textdegree C$

Substitute the values into the formula.

$q= (450.0 \ g)(1.264 \ J/g \textdegree C)(7.1 \ \textdegree C)$

Multiply the first 2 values together. The grams will cancel out.

$q= 568.8 \ J/ \textdegree C (7.1 \ \textdegree C)$

Multiply again. This time, the degrees Celsius cancel out.

$q= 4038.48 \ J$

<u>4038.48 Joules</u> of heat energy are released.

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3 years ago

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3 years ago

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Answer:

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Explanation:

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4 years ago

15. List the substances A-E in order from most dense to least dense based on the facts provided.

Volgvan

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So 1st it is B then D then E then a then C

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3 years ago

Of the well-characterized elements of group 7A, which would exhibit the following properties?

Nadusha1986 [10]

Answer: it reacts with the alkali metals (M) to form a salt MX, where X is the halogen.

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