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Romashka-Z-Leto [24]
3 years ago
12

What observations can you make about the valence electrons in the following columns of the periodic table?

Chemistry
1 answer:
masha68 [24]3 years ago
8 0

Answer:

Column 1. They have one valence electron

Column 2. They have 2 valence electrons

Transition metal column. Variable oxidation states

Column 3–7. Valence electron ranges from 3 to 7 electrons

Column 8. Completely filled i.e no valence electron

Explanation:

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Will give brainliest!
Salsk061 [2.6K]

The given questions belongs to the concept of limiting reagent.

The number of moles of carbon dioxide produced when 4.6 moles of dioxygen reacts is 4.6 moles.

<h3 /><h3>What is Limiting Reagent ?</h3>

The limiting reagent (or limiting reactant or limiting agent) in a chemical reaction is a reactant that is totally consumed when the chemical reaction is completed.

Given ;

Moles of Oxygen = 4.6

To find;

Moles of Carbon di oxide = ?

The reaction that forms CO_2 is as follows:

C(s) + O_2(g) -->  CO_2(g)

This means that O_2 is consumed and  CO_2 is produced in a 1:1 ratio.

If we consume 4.6 mol  O_2, then we produce 4.6 mol  CO_2 .

Hence, 4.6 mol  CO_2 are produced when 4.6 mol of oxygen reacts.

Learn more about Limiting reagent ;

brainly.com/question/27480688

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2 years ago
How does thermal energy result from friction
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Thermal energy from friction. ... All the work done by the friction force results in a transfer of energy into thermal energy of the box-floor system. This thermal energy flows as heat within the box and floor, ultimately raising the temperature of both of these objects. Figure 1: Man pushing a box opposed by friction.


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3 years ago
Which of the following is not a polyatomic ion? A) NO3-
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CaCO₃ is a compound in and of itself thus it is not a polyatomic ion.
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Which of the following would lead to the smallest entropy loss in the surroundings?
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I think the answer is b
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Answer:

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