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Taya2010 [7]
2 years ago
13

Is Solar energy a matter?

Chemistry
2 answers:
Zina [86]2 years ago
6 0

Answer:

a solar energy is a renewable free source of energy

NikAS [45]2 years ago
5 0

Answer:

Solar energy is a renewable free source of energy

Explanation:

It is sustainable and totally inexhaustible, unlike fossil fuels which are finite. It is also a non-polluting source of energy and it does not emit any greenhouse gases when producing electricity.

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What is Cd2+ and F1- together as a formula
geniusboy [140]

Answer:

i am not sure tho

Explanation:

Cd ²+ + F¹- = CdF2

F fluor is a non metal so he takes the electons that Cd gives so if Vd has to give 2 electrons and F can take only 1, there has to be 2 F atoms so all the electrona can be neutral and in ionisation

4 0
3 years ago
Calculate the mole fraction of the total ions in an aqueous solution prepared by dissolving 0.400 moles of CaI2 in 850.0 g of wa
Evgesh-ka [11]

Answer:

0.00840

Explanation:

The computation of the mole fraction is as follow:

As we know that

Molar mass = Number of grams ÷ number of moles

Or

number of moles = Number of grams ÷ molar mass

Given that

Number of moles of CaI2 = 0.400

And, Molar mass of water = 18.0 g/mol

Now  Number of moles of water is

= 850.0 g ÷ 18.0 g/mol

= 47.22 mol

And, Total number of moles is

= 0.400 + 47.22

= 47.62

So, Molar fraction of CaI2 is

= 0.400 ÷ 47.62

= 0.00840

4 0
3 years ago
Carbon has a neutral overall charge, an atomic mass of about 12 and an atomic number of 6. How many electrons does carbon have?
Artist 52 [7]
For the atom to be neutral, it must have the same number of electrons and protons. The aromic number indicates the number of protons. Since Carbon has 6 protons, it would have to have 6 electrons for it to be neutral
4 0
3 years ago
Read 2 more answers
Hot water is poured into four cups made of different materials (foam, glass, metal, plastic).After one minute, which will feel t
Marta_Voda [28]
The answer to this is metal
6 0
3 years ago
Read 2 more answers
When a glow stick is crushed and shaken, the two liquids mix and the stick glows.
Mars2501 [29]

Answer:

A chemical change has occurred, with energy being given off.

Explanation:

The liquids mix and the stick gives off energy in light form

3 0
3 years ago
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