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Ahat [919]
3 years ago
15

What is the answer to 16.3-2.666

Mathematics
1 answer:
djverab [1.8K]3 years ago
4 0
The answer: <span>13.634

Don't believe me? Check with a(n) calculator!</span>
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How much heat in kJ is released when nitrogen and hydrogen react as below to form 100.g ammonia heat equals-92.2kj
tresset_1 [31]

100g of ammonia releases 271.18 kJ of heat.

<u>Explanation:</u>

Given:

N₂ reacts with H₂

The reaction is:

2N₂ + 3H₂ → 2NH₃ + 92.2 kJ

According to the balanced reaction:

2 X 17g of ammonia releases 92.2 kJ of heat

34g of ammonia releases 92.2 kJ of heat

100g of ammonia will release = \frac{92.2}{34} X 100 kJ of heat

                                                 = 271.18 kJ

Therefore, 100g of ammonia releases 271.18 kJ of heat.

8 0
3 years ago
(2(n+1)-1)^2-(2n-1)^2 simplified
Westkost [7]

Answer: 8n

Let's simplify step-by-step.

(2(n+1)−1)2−(2n−1)2

Distribute:

=4n2+4n+1+−4n2+4n+−1

Combine Like Terms:

=4n2+4n+1+−4n2+4n+−1

=(4n2+−4n2)+(4n+4n)+(1+−1)

=8n

7 0
2 years ago
Which expression is equivalent to (2x to 4 y) 3 exponent?
nirvana33 [79]
I’m pretty sure it’s b
5 0
3 years ago
Positive irrational numbers; addition<br> Someone please help me!!
kap26 [50]

Answer:

Addition is...

1+1 = 2

But addition irrational numbers is...

π + 5 normally when using pi (π) the numbers are 3.14 but the number is infinite, all irrational numbers are infinite

then the sum will be 3.14 + 5 = 8.14

4 0
3 years ago
At a market 8 mangoes and 6 pears cost $25.00 and 4 mangoes and 8 pears cost$30.00. what is the cost of one mangoes
satela [25.4K]

Answer:

4.00 I THINK

Step-by-step explanation:

8 0
3 years ago
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