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3 years ago

6

A student is asked to identify an element that contains 2 valence electrons and is inert (stable). At which location in this per

iodic table would the element most likely be found?

1 answer:

krek1111 [17]3 years ago

6 0

Answer:

i think the answer is helium (top right in periodic table)

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How does the solubility of a gas change with decreasing temperature? A. It increases. B. It decreases. C. It is uniform. D. Temp

vitfil [10]

A it increases is the correct answer.

Good luck and I hope this helps.!

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3 years ago

I need help pls I will give you brainlist

White raven [17]

Answer:

I think it is the second one

Explanation:

Because what the cold water did to the table salt, is that it separated its molecules dissolving the salt.

even though the rock salt was in hot water it was a bigger particle. But the big difference was only because the water temperature ️.

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3 years ago

Given the unbalanced combustion equation: C3H8 + O2 → CO2 + H2O, how many moles of carbon dioxide are produced when 64.0 g of ox

gizmo_the_mogwai [7]

Moles of Carbon dioxide : 1.2

<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction(balanced)

C₃H₈ + 5O₂=> 3CO₂ + 4H₂O

mol of O₂ :

$\tt \dfrac{64}{32}=2$

mol of CO₂ :

$\tt \dfrac{3}{5}\times 2=1.2$

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3 years ago

Which symbol represents a particle that has the same total number of electrons as S2-?

Oksanka [162]

The correct answer is D) Ar

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3 years ago

What is the chemical formula for nitrogen monoxide?

vekshin1

Answer: the formula is NO

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2 years ago