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liraira [26]
3 years ago
10

PLEASE HELP MEEE THIS NEEDS TO BE DONE IN HALF AN HOUR :(

Chemistry
1 answer:
AveGali [126]3 years ago
4 0
D is the answer.Brainliest?!?
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12.2 scientific notation
Nadya [2.5K]

This would be 1.22 x 10^1

You simply move the decimal.

If this helped you, please list me as brainliest!

3 0
3 years ago
Hydrazine, N2H4 , reacts with dinitrogen tetroxide, N204.
Virty [35]

Answer:

C

Explanation: thats what i got

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3 years ago
Convert 55.6 km to m <br> show equation
crimeas [40]

Explanation:

1 km = 1000m

55.6 km = x m

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5 0
3 years ago
Read 2 more answers
X, Y &amp; Z represents 2, 12 &amp; 17 relatively a. Write the electronic configuration of x, y, and z b. Place the elements in
olasank [31]

The electronic configuration of x, y, and z.

x=1s^2

Y= 1s^22s^22p^63s^2

Z= 1s^22s^22p^63s^23p^5

<h3>What is an electronic configuration?</h3>

Electronic configuration, also called electronic structure, is the arrangement of electrons in energy levels around an atomic nucleus.

a.

x=1s^2

Y= 1s^22s^22p^63s^2

Z= 1s^22s^22p^63s^23p^5

b.

x= Period 1 and group18

Y=Element is in period 3 and Group 2

Z=Element is in period 3 and group 17.

c.

X, Y & Z represents Helium, magnesium, and chlorine.

Learn more about the electronic configuration here:

brainly.com/question/19589767

#SPJ1

3 0
2 years ago
The chemical formula for magnesium oxide is 2MgO. The number 2 represents the number of ___.
patriot [66]

Answer:

Magnesium oxide molecules

Explanation:

3 0
3 years ago
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