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Maru [420]
2 years ago
11

ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST

Chemistry
1 answer:
yaroslaw [1]2 years ago
6 0

Answer:

There are four electrons

You might be interested in
If 20 grams of N2 react completely with H2 , how many moles of NH3 are produced? Show Work
Maslowich
This is the balanced eq
N2 + 3H2 -> 2NH3
first you need to find mole of N2 by using
mol = mass ÷ molar mass.
mol N2= 20g ÷ (14.01×2)g/mol
=0.7138mol
then look at the coefficient between H2 and NH3.
it is N2:NH3
1:2
0.7138:0.7138×2
0.7138:1.4276 moles
moles of NH3 = 1.4276 moles
5 0
3 years ago
Question 23 (3 points)
Mice21 [21]

Answer:

<h2>The answer is 3.0 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}  \\

From the question

mass of aluminum = 8.1 g

density = 2.7 g/mL

It's volume is

volume =  \frac{8.1}{2.7}  \\

We have the final answer as

<h3>3.0 mL</h3>

Hope this helps you

3 0
2 years ago
The state of the atmosphere at a given time and place is called
s344n2d4d5 [400]

Answer:a

Explanation:

6 0
3 years ago
Read 2 more answers
How much energy would be released if 450.0 g of the substance completely reacted with oxygen?
SOVA2 [1]

Answer:

1.1853 kJ

Explanation:

4 0
3 years ago
How many moles of H20 are needed to produce 1 mole of O2 in the following equation?
Alex787 [66]
2 moles is the answer
6 0
3 years ago
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