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LenaWriter [7]
3 years ago
11

Arrange the following atoms in order of increasing size (radius).

Chemistry
1 answer:
LenaWriter [7]3 years ago
7 0

Answer:

S<Se<Te

Br<Ni<K

F<Si<Ba

Explanation:

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In the reaction Fe2O3 + 3CO a 2Fe + 3CO2, 10 moles of solid iron and 15 moles of carbon dioxide are produced from 5 moles of iro
Schach [20]

Answer:

Ratio is 3:2

3CO = 2Fe or 1.5 CO = 1 Fe

Explanation:

Fe2O3 + 3CO = 2Fe + 3CO2

Fe2O3 = Iron (|||) oxide

CO = Carbon monoxide

Fe = Solid Iron

CO2 = Carbon dioxide

Excellent is already balanced.

10 Moles Fe and 15 Moles of CO2

5 Moles Fe2O3 + 15 Moles 3CO = 10 Moles Fe + 15 Moles 3CO2

What is the ratio of carbon monoxide to solid iron

Ratio is 3:2 or 1.5 CO = 1 Fe

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2 years ago
What is the lewis dot structure for Ca3P2 and Al2O3?
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Answer:

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Explanation:

The atomic number of the sodium atom is 11. The atomic mass number can be estimated by rounding the atomic mass to 23.

3 0
3 years ago
In which of these statements are protons, electrons, and neutrons correctly compared?
algol13
The statement that correctly compares protons, electrons, and neutrons is, "Quarks are present in protons and neutrons but not in electrons". Quarks are tiny particles which compose the neutrons and protons. These quarks in protons and neutrons are linked together by gluons. 
5 0
3 years ago
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a sample of an unknown metal has a mass of 21.6g and volume of an 8.00cm3 calculate the density of the unknown metal
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Answer:

<h2>2.70 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question we have

density =  \frac{21.6}{8}  \\  = 2.7

We have the final answer as

<h3>2.70 g/cm³</h3>

Hope this helps you

4 0
2 years ago
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Answer:

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5 0
1 year ago
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