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Amiraneli [1.4K]
3 years ago
5

10.

Mathematics
1 answer:
joja [24]3 years ago
4 0

Answer:

A. No; two range values exist for domain value –2.

Step-by-step explanation:

In a function each input has ONE output. -2 has two range values, so No; two range values exist for domain value -2.

The given relation is

We need to check whether the above relation is a function or not.

A relation is a function if there exist a unique value of y for each value of x.

From the given relation it is clear that

y = 0 at x = -2

y = 6 at x = -2

Two range values exist for domain value –2. So, the given relation is not a function.

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Step-by-step explanation:

Balanced chemical reaction is written first to know the number of moles taking part in original reaction.

NH3 +3 F2 ⇒3 HF  +  NF3

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mass of HF = 4.65

First the number of moles of HF in 4.65 grams is calculated by using the formula:

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putting the values in the above equation number of moles can be found.

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