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lesya [120]
2 years ago
13

Hi, does anyone want to be friends ?

Chemistry
1 answer:
Olegator [25]2 years ago
5 0

Answer:

sure sure

Explanation:

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How many calories is 52 J of energy?
just olya [345]

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1J = 0.238846cal

52J = 12.42cal

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Does anyone know how to write out the formula for these?? not just the answer x
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The whole reason things stay afloat or sink is because water is​
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4 0
1 year ago
How many joules of energy do you have if you have 0.45 L of water in a can and you heat the 23C water to 55C site:socratic.org
Bess [88]

Answer:

Q = 60192 j

Explanation:

Given data:

Volume of water = 0.45 L

Initial temperature = 23°C

Final temperature = 55°C

Amount of heat absorbed = ?

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT =  55°C - 23°C

ΔT = 32°C

one L = 1000 g

0.45 × 1000 = 450 g

Specific heat capacity of water is 4.18 j/g°C

Q = m.c. ΔT

Q = 450 g.  4.18 j/g°C.  32°C

Q = 60192 j

4 0
3 years ago
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