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kozerog [31]
2 years ago
7

A polyatomic ion is a tightly bound group of atoms that carries its own unique charge.

Chemistry
1 answer:
goldfiish [28.3K]2 years ago
8 0
True would seem to be sufficient
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Trường hợp nào sau đây là chất tinh khiết
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Where would you expect detergent and<br> shampoos to be found?
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Which process creates two new cells from one existing cell in order to maintain homeostasis? (4 points) a Cell division b Cellul
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5 0
2 years ago
For a snack, I ate 40 gummy bears. Each gummy bear weighs 3g.
slega [8]

Taking into account the rule of three, you eat 480 kcal.

<h3>Rule of three</h3>

The rule of three is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.

That is, what is intended with it is to find the fourth term of a proportion knowing the other three.  

If the relationship between the magnitudes is direct, the direct rule of three must be applied as follow, being a, b and c known data and x the variable to be calculated:

a ⇒ b

c ⇒ x

So: x= (c×b)÷ a

<h3>kcal of eaten gummy bears</h3>

To know the mass of eaten gummy bears, the following rule of three applies: if 1 gummy bear weighs 3 g, 40 gummy bears weigh how much mass?

1 gummy bear ⇒ 3 g

40 gummy bears ⇒ x

So: x= (40 gummy bears× 3 g)÷ 1 gummy bear

Solving:

<u><em>x= 120 g</em></u>

If gummy bears are 100% carbohydrates and carbohydrates are 4 kcal/g, the following rule of three applies: If 1 g has 4 kcal, 120 g has how many kcal?

1 g ⇒ 4 kcal

120 g⇒ x

So: x= (120 g× 4 kcal)÷ 1 g

Solving:

<u><em>x= 480 kcal</em></u>

In summary, you eat 480 kcal.

Learn more with this example:

brainly.com/question/12482948

#SPJ1

4 0
1 year ago
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