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snow_tiger [21]
3 years ago
6

What is wrong with the way that the hypothesis, “Chocolate may cause pimples”, is written?

Chemistry
2 answers:
DaniilM [7]3 years ago
8 0

Answer:

More sweet and cute with the little ones on the surface and a little more

Semenov [28]3 years ago
7 0

Answer:

because chocolate have many pimples on the face

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Determine the amount of energy (heat) in joules required to raise the temperature of 20g of gold from 5°C to 37°C.
insens350 [35]

Answer:

The answer to your question is E = 83.2 J

Explanation:

Data

Element: Gold

Initial temperature = T1 = 5°C

Final temperature = T2 = 37°C

mass = 20 g

Specific heat = 130 J/kg°K

Process

1.- Convert temperature to kelvin

T1 = 273 + 5 = 278°K

T2 = 273 + 37 = 310°K

2.- Convert mass to kg

             1000 g --------------- 1 kg

                 20 g --------------- x

                 x = (20 x 1)/1000

                 x = 0.02 kg

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E = mC(T2 -T1)

4.- Substitution

E = (0.02)(130)(310 - 278)

E = (0.02)(130)(32)

E = 83.2 J

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3 years ago
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