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777dan777 [17]
3 years ago
13

4) A granola bar has a mass of 42.9 g and the granola bar contains 26.20% honey

Chemistry
1 answer:
nata0808 [166]3 years ago
7 0

<u>Answer:</u>

The percentage of honey in one granola bar is 26.02 percent.  

<u>Explanation:</u>

The weight of 1 granola bar is 42.9 grams. The grams of honey that is present in one granola bar is equal to 26.02 percent of 42.9 = 11.16 g

Now the amount of honey in the factory is given as 189.5g the weight of total granola bars would be

                                     = 42.9/11.16 x 189.5= 728.25

So no. of granula bars =728.25/42.9 =16.9 that can be Approximated to nearly 17

Now if one box has 6 bars then 17 bars will have to fit inside three boxes  

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Sergio039 [100]

The reaction is not balanced

<h3>Further explanation</h3>

Given

Reaction

2Fe(s)+3O₂(g)⇒2Fe₂O₃(s)

Required

The number of atoms

Solution

In a balanced chemical equation, the number of atoms in the compound that reacts (the reactants and products) will have the same number

Reactants : Fe(s)+O₂(g)

Fe = 2 atoms

O = 3 x 2 = 6 atoms

Products : Fe₂O₃(s)

Fe = 2 x 2 = 4 atoms

O = 2 x 3 = 6 atoms

The reaction is not balanced because the number of Fe atoms is not the same

The balanced reaction should be:

4Fe(s)+3O₂(g)⇒2Fe₂O₃(s)

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3 years ago
The sum of the protons and neutrons in an atom equals the ____. *
Anna11 [10]

Answer:

The sum of the number of protons and neutrons in an atom is called the mass number.

Explanation:

Carbon-12 has 12 protons and 12 neutrons. 12+12=24 , so the mass number of C-12 is 24..

Hope it helps..

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3 years ago
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I hope this helps.

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