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lianna [129]
2 years ago
7

1. Which of the following combinations correctly represents the process of

Chemistry
2 answers:
Nitella [24]2 years ago
6 0

Answer:

A

Explanation:

sesenic [268]2 years ago
3 0

Answer:

I think It should be option A. It would have been B but, solar energy is not giving out, it's taken in

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What is an example of conduction, raditaon convection
Tom [10]

Answer:

convection could be a pot on a stove, radiation could be the sun and heat waves, and conduction could be a cup with coffee.

Explanation:

Conduction occurs when two objects are in direct contact with each other.

Convection is the transfer of heat through liquids and gases. Convection occurs above a hot surface because hot air expands and rises and is replaced by cooler, denser air.

Radiate energy is given off by a hot object and directly absorbed by another cooler object. This cause the cooler object to get warmer. Radiation can occur even if no air is present.

3 0
3 years ago
What is another element that will have the same valence electrons as Be and Ca?
Oduvanchick [21]
Another element maybe BeCa if you combine them
8 0
2 years ago
g The boiling of water is a Question 4 options: chemical and physical damage chemical change because a gas (steam) is given off
Strike441 [17]

Answer:

physical change because the gaseous water is chemically the same as the liquid

Explanation:

Matter can be defined as anything that has mass and occupies space. Any physical object that is found on earth is typically composed of matter. Matter are known to be made up of atoms and as a result has the property of existing in states.

Generally, matter exists in three (3) distinct or classical phases and these are; solid, liquid and gas.

A physical change can be defined as a type of change that only affects the physical form of a chemical substance (matter) without having any effect on its chemical properties. Thus, a physical change would only affect the physical appearance and properties of a chemical substance (matter) but not its chemical properties.

This ultimately implies that, a physical change result in a change of matter from one form or phase (liquid, solid or gas) to another without a corresponding change in chemical composition.

Hence, the boiling of water is considered to be a physical change because the gaseous water is chemically the same as the liquid i.e there isn't any changes in chemical composition of water when boiling.

8 0
3 years ago
How many grams are 1.20 x 1025 molecules of calcium iodide?
jeka57 [31]

Answer:

1230

Explanation:

1.20×1025=1230 is your answer

5 0
2 years ago
How does a hydroelectric power plant convert energy?
Oksana_A [137]

Answer:

D. As water flows through the channels toward the turbines, it has kinetic energy. This is changed to mechanical energy as the water turns the turbines. Then the mechanical energy of the turbines is changed to electrical energy by the generator.

Explanation:

I hope this helps. :)

3 0
3 years ago
Read 2 more answers
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