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Arlecino [84]
3 years ago
14

How many electrons are in O2-?

Chemistry
1 answer:
egoroff_w [7]3 years ago
5 0

Answer:

There will be 16 electrons in O2-

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What is the volume of 2 moles of methane (CH4)? (One mole of any gas occupies 22.4 L under certain conditions of temperature and
Tju [1.3M]

Answer:

2 moles of Methane gas will occupy 44.8 L

Explanation:

If one mole of any gas occupies 22.4 L under certain conditions of temperature and pressure, and those conditions are assumed in this question, then we comfortably solve this problem as follows;

1 mole of Methane gas ---------------> 22.4 L

2 moles of Methane gas -------------->?

Cross and multiply, 2 moles of Methane gas = 2 X 22.4 L = 44.8L

Therefore, 2 moles of Methane gas will occupy 44.8 L, if the conditions of temperature and pressure are maintained.

OPTION A IS THE RIGHT SOLUTION.

8 0
4 years ago
What is the kinetic energy of a 3kg ball that is rolling at 2 meters per second
marissa [1.9K]

Answer:

<h2>6 J</h2>

Explanation:

The kinetic energy of an object can be found by using the formula

k =  \frac{1}{2} m {v}^{2}  \\

m is the mass

v is the velocity

From the question we have

k =  \frac{1}{2}  \times 3 \times  {2}^{2}  \\  =  \frac{1}{2}  \times 3 \times 4 \\  = 3 \times 2

We have the final answer as

<h3>6 J</h3>

Hope this helps you

7 0
3 years ago
What is the volume of 10 paper clips in ml
vredina [299]

Answer:

10.000

Explanation:

7 0
3 years ago
Read 2 more answers
What is the number of protons in a neutral atom with 31 electrons and 38 neutrons?
PSYCHO15rus [73]

31

I think. Protons and electrons share the same number as well as the atomic number.

5 0
2 years ago
Read 2 more answers
Which organisms dose the mouse in the food web provide energy for? a. deer and snake b. hawk and coyote c. grasshopper and snake
Delicious77 [7]
I would say B) hawk and coyote.


Hope this helps!
8 0
3 years ago
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