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miv72 [106K]
3 years ago
12

A local fast food restaurant hired a group of investigators to study some aspects of their store, clientele, and food preference

s. Which question would NOT be a valid question to research scientifically?A) How much trash is generated by the restaurant in a week?B) Is the Big Mega Huge Burger the best burger in the world?C) Do the french fries contain the highest fat content per gram?EliminateD) What is the average amount of money spent by each customer per visit?
Chemistry
2 answers:
Keith_Richards [23]3 years ago
4 0

Answer:A

Explanation:it is a factnot a opinion and can be proven

Bogdan [553]3 years ago
4 0

It's most likely B.) Is the Big Mega Burger the best burger in the world?

I think this is it cause this would just be an opinion.

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sp2606 [1]

Answer:

CH₃NH₃⁺ is a weak acid.

HPO₄²⁻ has a negligible acidity.

CH₄ has a negligible acidity.

HNO₂ is a weak acid.

Explanation:

There are 7 strong acids: HCl, HBr, HI, HNO₃, H₂SO₄, HClO₃, HClO₄. The rest of the acids are weak.

CH₃NH₃⁺ is a weak acid, according to the following equation:

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HPO₄²⁻ can act as an acid or as a base:

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<u>Basic reaction:</u> HPO₄² + H₂O ⇄ H₂PO₄⁻ + OH⁻

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CH₄ cannot release nor accept H⁺ so it has a negligible acidity.

HNO₂ is a weak acid, according to the following reaction:

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2. When the temperature of a liquid increases, the volume increases doing the density decreases because density is inversely proportional to volume. And works in the same way for gases because the temperature produce more collisions and the increasing in volume.

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