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Leto [7]
2 years ago
13

How many electron energy shells are occupied in an unstable atom of silicon

Chemistry
1 answer:
drek231 [11]2 years ago
8 0

Answer:

4

Explanation:

it will share its valence electrons with other elements to acquire noble gas confriguration of the nearest inert element.

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Based on the context of paragraph 4, what are salient factors?
Stella [2.4K]

Answer:

importent factors

Explanation:

The salient facts about something or qualities of something are the most important things about them: She began to summarize the salient features/points of the proposal. The article presented the salient facts of the dispute clearly and concisely. SMART Vocabulary: related words and phrases. Very important or urgent.

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3 years ago
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A plant uses the energy from sunlight to create oxygen and glucose from carbon dioxide and water. Which statement is true about
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Consider the reaction.
N76 [4]

Answer: m = 50 g ZnSO4

Explanation: First is convert the moles of Zn to the moles of ZnSO4 by having their mole ratio which is 2:2 based from the balanced equation. Next is convert the moles of ZnSO4 to mass using its molar mass.

0.311 mole Zn x 2 moles ZnSO4 / 2 moles Zn

= 0.311 moles ZnSO4

0.311 moles ZnSO4 x 161 g ZnSO4 / 1 mole ZnSO4

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3 years ago
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A block of iron has a mass of 150 g and a volume of 20 ml. What is the density of iron? *
shtirl [24]

Answer:

<h3>The answer is 7.50 g/mL</h3>

Explanation:

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

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

From the question

mass of iron = 150 g

volume = 20 mL

We have

density =  \frac{150}{20}  =  \frac{15}{2}  \\

We have the final answer as

<h3>7.50 g/mL</h3>

Hope this helps you

4 0
2 years ago
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Which scientist arranged the elements in order of increasing atomic number, rather than increasing atomic mass? Antoine Lavoisie
Natalka [10]
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