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ladessa [460]
3 years ago
11

Which coefficient before hydrogen (H2) balances this chemical equation? N2 + __H2 2NH3 A. 2 B. 3 C. 4 D. 5

Mathematics
1 answer:
klio [65]3 years ago
4 0

Answer:


Step-by-step explanation:

The answer to this question is 3

Hope this helps

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36 - (-4) + 5+ (-10) =
Eduardwww [97]

Answer:

=35

Step-by-step explanation:

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Find the equation of the line that contains the given point and is perpendicular to the given line. Write the equation in slope-
devlian [24]

Answer:

Attached picture

Step-by-step explanation:

if anything remains unclear, just let me know in comments.

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3 years ago
Factor the trinomial in to 2 sets of parentheses <br> 12a squared minus 13a minus 35
Juliette [100K]
It can't be factored because there are no 2 numbers that when you multiply you get 35 and when you add you get 13.
8 0
3 years ago
Simplify the expression.<br> 9(4+t) - 7(t + 3)<br> 9(4 +t) - 7(t + 3) =
Nadusha1986 [10]

Answer:

−63t2−439t−741

Step-by-step explanation:

Let's simplify step-by-step.

9(4+t)−7(t+3)(9)(4+t)−7(t+3)

Distribute:

=(9)(4)+(9)(t)+−63t2+−441t+−756+(−7)(t)+(−7)(3)

=36+9t+−63t2+−441t+−756+−7t+−21

Combine Like Terms:

=36+9t+−63t2+−441t+−756+−7t+−21

=(−63t2)+(9t+−441t+−7t)+(36+−756+−21)

=−63t2+−439t+−741

5 0
4 years ago
I tried to do this but i dont understand <br> Help?
dolphi86 [110]

Answer:

I think:

28  7   4

4   7    2

1   14   28

Step-by-step explanation:

See how that works. I have no idea what the rules are so this is just speculation

5 0
3 years ago
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