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pshichka [43]
3 years ago
8

Someone please help me

Chemistry
1 answer:
Ymorist [56]3 years ago
7 0
The correct answer is B.14.007
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Describe how Fire Making undergo heat to light energy transformation.
Pavel [41]

As the combustible materials burn, some of the chemical energy is transformed into heat energy, and some are transformed into light energy. Light energy, also known as radiation or electromagnetic energy, is a type of kinetic energy that takes the form of visible light waves, such as the light from a match.

4 0
2 years ago
A chemist wants to calculate the amount of heat that is absorbed by a sample of copper as it is melted. Which constant should sh
34kurt

The constant used for the absorption of heat by the sample in melting is +\Delta H_{fus}.  Thus, option A is correct.

The chemical reaction has been defined as the energy in which the energy has been released or absorbed for the breaking of bonds in the reactants and the formation of product.

<h3>Constant for energy absorbed</h3>

The energy has been absorbed in the melting of the copper sample. Thus, the sample has been converted from the solid to the liquid state.

The change in energy with the conversion in solid and liquid state has been termed as heat of fusion.

The energy has been absorbed by the system, thus it has been marked with the positive sign.

Therefore, +\Delta H_{fus} has been the constant used for the absorption of heat by the sample in melting. Thus, option A is correct.

Learn more about melting sample, here:

brainly.com/question/8828503

8 0
2 years ago
What does a gamma ray primarily consist of?
damaskus [11]
Answer is D

Explanation: A gamma ray primarily consists of pure energy and no mass.
6 0
3 years ago
A brass doorknob has a mass of 80grams and a volume of 10cubic centimeters. What is its density?
ki77a [65]

Density = mass/volume = 80 g/10cm³ = 8 g/cm³

5 0
3 years ago
Oxygen is an example of a(n)
stepladder [879]

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C. element. oxygen is an element

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