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geniusboy [140]
2 years ago
11

A student is standing with their back facing a campfire. The student notices that their back is much warmer than their chest. Th

ey know that thermal energy is being transferred from the fire and that this method of energy transfer can happen even if no air is present.
This method of energy transfer is —



convection

condensation

conduction

radiation
Chemistry
2 answers:
fiasKO [112]2 years ago
8 0
Conduction because it transfers thermal energy
Mandarinka [93]2 years ago
3 0

Answer:Conduction occurs when energy is passed between objects. The transfer of thermal energy is called heat. Particles of matter are in constant motion.

Explanation:

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scZoUnD [109]

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5 0
2 years ago
Which of the following is TRUE about enzymes?
Vinil7 [7]

Answer:

All options are correct.

Explanation:

All options are correct.

Enzymes being faster, than chemical catalysts and their reaction rate is almost 10 times faster.They are highly specific producing large amount of good residues and can work at mild conditions, physiological pH and temperature.

They can be regulated by other molecules that either increase or reduce their activity.

Molecules that increase the activity of an enzyme are called activators, while molecules that decrease the activity of an enzyme are called inhibitors.

6 0
3 years ago
Identify and explain the process shown below. Name any two products obtained during this process and state their uses.
lapo4ka [179]

Answer:

This is heating limestone

Explanation:

Process:

limestone is heated strongly. After a while, the limestone begins to go cloudy. Test tube is heated too much that it is beginning to  soften it. After removing limewater, test tube cools down, the pressure in the test tube drops and air pressure pushes the cold the liquid into the hot test tube with terrible result.

Products:

Limestone is also known as calcium carbonate and Limewater

Click on the link provided to show the video

https://youtu.be/RLL5rT_DeKc

or search heating calcium carbonate

you will find a video

5 0
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Number of
zzz [600]

Answer:

symbol= F

proton= 9

neutron= 19 I understand this is it ok for you

6 0
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