3 years ago

if a atom has 12 positively charged protons and 12 negatively charged electrons when is its total charge ?

Mathematics

1 answer:

professor190 [17]3 years ago

3 0

Answer:

The total charge in an atom is zero or it is neutrally charge. both nulify each others charge.

If the atom has some charge in it then it is called an ion.

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Find mzC. B (2x – 12) (9x – 26) (4x + 43)

MrMuchimi

Answer:

m<C = 119°

Step-by-step explanation:

Create an equation to find the value of x.

(9x - 26)° = (2x - 12)° + (4x + 43)° (exterior angle theorem of a ∆)

Solve for x

9x - 26 = 2x - 12 + 4x + 43

Add like terms

9x - 26 = 6x + 31

9x - 6x = 26 + 31

3x = 57

Divide both sides by 3

x = 19

✔️m<C = 4x + 43

Plug in the value of x

m<C = 4(19) + 43

m<C = 76 + 43

m<C = 119°

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Step-by-step explanation:

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Explain why the following statements are equivalent: x + (y + 9) = (x + y) + 9

Alona [7]

Answer:

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Step-by-step explanation:

x + (y + 9)

There are no like terms

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There are no like terms

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Vesna [10]

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