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Allisa [31]
3 years ago
13

How many molecules of calcium chloride are in 3CaCl2

Chemistry
1 answer:
Soloha48 [4]3 years ago
8 0
3*40+3*2*35.5=333* Avogadro’s number =
1.98*10^25
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3 years ago
Draw the best Lewis structure for CH 3 -1. What is the formal charge on the C?
djyliett [7]

Answer :  The formal charge on the C is, (-1) charge.

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is, CH_3^{-1}

As we know that carbon has '4' valence electrons and hydrogen has '1' valence electron.

Therefore, the total number of valence electrons in CH_3^{-1} = 4 + 3(1) + 1 = 8

According to Lewis-dot structure, there are 6 number of bonding electrons and 2 number of non-bonding electrons.

Now we have to determine the formal charge on carbon atom.

Formula for formal charge :

\text{Formal charge}=\text{Valence electrons}-\text{Non-bonding electrons}-\frac{\text{Bonding electrons}}{2}

\text{Formal charge on C}=4-2-\frac{6}{2}=-1

The formal charge on the C is, (-1) charge.

3 0
3 years ago
State the law of conservation of energy.
LUCKY_DIMON [66]

Answer:

A) The law of conservation of energy states that energy can neither be created nor destroyed.

and

B) Energy can be transferred from one object to another, and it can assume different forms.

6 0
3 years ago
For most substances, the distance between the particles is smallest when the substance
olchik [2.2K]
Is a solid? has strong intermolecular forces? 
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A ruptured tank in Anywhere, USA, spilled hydrochloric acid. Officials were reported to be concerned that the acid might mix wit
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Option C; NONE.

Explanation:

A chemical reaction forms new chemicals called the products from the initial chemicals called the reactants. The reaction between an acid and a base is called neutralization, and the products formed are water and a salt.

When hy­drochlo­ric acid and sodi­um hy­drox­ide is mixed together, they in­ter­act, and re­sult­ in salt and a release of heat.

The re­sult of the in­ter­ac­tion of these two high­ly ag­gres­sive com­pounds is ta­ble salt and wa­ter, these resulting com­pounds are ul­ti­mate­ly harm­less, and even ben­e­fi­cial, to hu­man be­ings.

Therefore, NO TOXIC GAS WOULD BE FORMED BY MIXING HYDROCHLORIC ACID WITH SODIUM HYDROXIDE.

5 0
3 years ago
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