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nasty-shy [4]
2 years ago
13

What model is the basis for chemistry? Group of answer choices

Chemistry
1 answer:
serg [7]2 years ago
6 0

Answer:

bohrs atomic model

Explanation:

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What type of reaction occurs in the core of a nuclear reactor in a nuclear power plant?
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3 years ago
Read 2 more answers
What is the empirical formula for a compound that contains 79.86 % iodine and 20.14 % oxygen by mass?
serg [7]

Answer:

IO₂

Explanation:

We have been given the mass percentages of the elements that makes up the compound:

Mass percentage given are:

Iodine = 79.86%

Oxygen = 20.14%

To calculate the empirical formula which is the simplest formula of the compound, we follow these steps:

> Express the mass percentages as the mass of the elements of the compound.

> Find the number of moles by dividing through by the atomic masses

> Divide by the smallest and either approximate to nearest whole number or multiply through by a factor.

> The ratio is the empirical formula of the compound.

Solution:

I O

% of elements 79.86 20.14

Mass (in g) 79.86 20.14

Moles(divide by

Atomic mass) 79.86/127 20.14/16

Moles 0.634 1.259

Dividing by

Smallest 0.634/0.634 1.259/0.634

1 2

The empirical formula is IO₂

7 0
3 years ago
What element has 31 protons and 37 neutrons?
Vlada [557]
The answer is going to be  Rubidium. hope that helped
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2 years ago
Which of the following is an ion with a correct charge ?<br><br> O 4-<br> Ne8+<br> Ca2+<br> Na1-
KengaRu [80]

Answer:

Ca2+ is an ion with a correct charge.

8 0
3 years ago
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