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vova2212 [387]
3 years ago
6

Which among the following electromagnetic radiations have the lowest frequency?

Chemistry
2 answers:
xenn [34]3 years ago
8 0

Answer:

Find g

Write your answer in simplest radical form

insens350 [35]3 years ago
8 0
Lowest to greatest

Microwave
Infra-red
Visible light
Ultra-violet
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Question 3:
Oliga [24]
E. Molarity of vinegar

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5 0
3 years ago
What us the % composition of oxygen (O) in iron (III) hydroxide, Fe(OH)<br> 3?
S_A_V [24]

Answer:

44.91% of Oxygen in Iron (III) hydroxide

Explanation:

To solve this question we must find the molar mass of Fe(OH)3 and the molar mass of the oxygen in this molecule. Percent composition will be:

<em>Molar mass Oxygen / molar mass Fe(OH)3 * 100</em>

<em />

<em>Molar mass Fe(OH)3 and oxygen:</em>

1Fe = 55.845g/mol*1 = 55.845

3O = 16.00g/mol*3 = 48.00 - Molar mass of Oxygen

3H = 1.008g/mol*3 = 3.024

55.845 + 48.00 + 3.024 =

106.869g/mol is molar mass of Fe(OH)3

% Composition of oxygen is:

48.00g/mol / 106.869g/mol * 100 =

<h3>44.91% of Oxygen in Iron (III) hydroxide</h3>
7 0
3 years ago
Can anyone help me with any of the questions
Dafna11 [192]
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3 years ago
A water bath in a physical chemistry lab is 1.75 m long, 0.730 m wide, and 0.650 m deep. If it is filled to within 2.27 inches f
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7 0
3 years ago
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Write a covalent compound formed by nitrogen and oxygen. what is its Lewis structure​
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Answer:

Two covalent bonds form between the two oxygen atoms because oxygen requires two shared electrons to fill its outermost shell. Nitrogen atoms will form three covalent bonds (also called triple covalent) between two atoms of nitrogen because each nitrogen atom needs three electrons to fill its outermost shell.

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