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horrorfan [7]
3 years ago
9

How should the table be changed to correctly distinguish between mechanical and electromagnetic waves?

Chemistry
2 answers:
shepuryov [24]3 years ago
5 0

Answer:

Sound waves and light waves need to change places.

Explanation:

cluponka [151]3 years ago
4 0

Answer:

D

Explanation:

Sound waves and light waves need to change places.

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How many grams of o2 are necessary to react with 212 G of mg 2mg+o2➡2mgo?
gulaghasi [49]
We are given an equation 2Mg+O2-> 2MgO and a starting chemical Mg of about 212 g. In order to solve for the amount of O2 needed, we need the molecular weight of Mg and O2.
Molecular weight:
Mg=24.305 g/mol
O2=16(2)=32 g/mol

Note that for every 1 mol of O2, the amount of Mg must be 2 mol.
So,
 g O2 = 212 g Mg x1mo Mgl/24.305 g Mg x1mol O2 /2 mol Mg x 32 g O2/mol O2

gO2=139.56 g

Therefore, 139.56 g of O2 is needed for every 212 g Mg.
7 0
4 years ago
How and why do ionic bonds form? Check all of the boxes that apply. Ionic bonds form between metal atoms and other metal atoms.
sammy [17]

2 Ionic bonds form between metal atoms and nonmetal atoms.

4 The less electronegative atoms transfers one or more electrons to the more electronegative atom.

5 The metal atom forms a cation and the nonmetal atom forms an anion.

7 The attraction between ions with an opposite charge forms an ionic bond.



8 0
3 years ago
Read 2 more answers
If the Earth had no tilt, how would that affect our seasons? I will give branliest to first comment
Aleks [24]

Answer:

in my opinion it wouldn't be regular seasons like what we have now it would be equal in every poles .. there would not be ice in North. [its my opinion though] sorry if I am wrong

6 0
3 years ago
Please answer these for my friend she has to turn it in today. will give brainly,five stars and thanks she will do the same
shepuryov [24]

Answer:

Energy transformation is when energy changes from one form to another – like in a hydroelectric dam that transforms the kinetic energy of water into electrical energy. While energy can be transferred or transformed, the total amount of energy does not change – this is called energy conservation.

Explanation:

4 0
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You pretty much answered your own question haha
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providing heat takes a lot of energy.
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3 years ago
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