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defon
3 years ago
13

Snow melting is a physical change. True False

Chemistry
2 answers:
Maksim231197 [3]3 years ago
6 0

Answer:

true

Explanation:

because it's only changing state

S_A_V [24]3 years ago
4 0

Answer:

false

Explanation:

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Which is a process that converts sunlight energy into a compound that stores chemical energy?.
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Photosynthesis

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2 years ago
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General Chemistry fourth edition by McQuarrie, Rock, and Gallogly. University Science Books presented by Macmillan Learning.
Helen [10]

Answer:

3.07 Cal/g

Explanation:

Step 1: Calculate the heat absorbed by the calorimeter

We will use the following expression.

Q = C × ΔT

where,

  • Q: heat absorbed
  • C: heat capacity of the calorimeter (37.60 kJ/K = 37.60 kJ/°C)
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Q = 37.60 kJ/°C × 2.29 °C = 86.1 kJ

According to the law of conservation of energy, the heat released by the candy has the same magnitude as the heat absorbed by the calorimeter.

Step 2: Convert 86.1 kJ to Cal

We will use the conversion factor 1 Cal = 4.186 kJ.

86.1 kJ × 1 Cal/4.186 kJ = 20.6 Cal

Step 3: Calculate the number of Cal per gram of candy

20.6 Cal/6.70 g = 3.07 Cal/g

3 0
3 years ago
. When a person weighs himself in pounds, which system of measurement is he using?
timama [110]

Answer:

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Explanation:

8 0
2 years ago
I am a teacher in a college in a large city in China. One day, some students asked me to join
IrinaVladis [17]

Answer:

c or b

Explanation:

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2 years ago
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Answer:

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Explanation: HOPE THIS HELPS YOU..

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3 years ago
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