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IceJOKER [234]
2 years ago
11

Plz help with as many as u can

Mathematics
1 answer:
nydimaria [60]2 years ago
8 0
This is the right answer

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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.

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2 years ago
Consider the function, f(x)=2x-1
sukhopar [10]

Answer:

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Step-by-step explanation:

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Whisper is exercised twice a day.
aleksklad [387]

Answer:

I:23/48

ii 25/48

Step-by-step explanation:

30min=0.5hr

total time exercised: 11+0.5=11.5hr

Divided by total hours of a day:

11.5/24=115/240=23/48

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What are the first five multiples of 7​
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7, 14, 21, 28, 35

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Two trees cast shadows on the ground as shown. The smaller tree is 17m high and cast a 10m long shadow.
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Answer:

2.8

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