2 years ago

Charlotte's car averages 25 miles per gallon of gas. How many dal would she need to travel 3,241 hm?

1 answer:

7 0

Answer:

Around 129 galons

Explanation:

if you divied 3,241 by 4 you get 129 gallons but if you times that by 25 you get 3,225 so a little bit off but close.

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gladu [14]

Isotopes have same atomic number but different atomic mass number.
Hence option B is correct.

Hope this helps you!

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3 years ago

Sedaia [141]

The Law of Conservation of Energy

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3 years ago

Mashcka [7]

Explanation:

Calcium chloride is an ionic compound as it is formed by transfer of an electron to each chlorine atom.

So, being an ionic compound calcium chloride is able to dissociate completely into water.

Hence, the dissociation reaction will be as follows.

$CaCl_{2}(s) \rightarrow Ca^{2+}(aq) + 2Cl^{-}(aq)$

Since, two electrons has been lost by single calcium atom. Therefore, calcium atom will have a charge of +2.

Thus, we can conclude that the charge on the calcium ion, in elementary units is +2.

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3 years ago

fredd [130]

Divide by the molar mass of HCl which is 36.5g/mol grams cancels out and you are left with 1.99 mol.

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3 years ago

Fofino [41]

That would be an ion, so A.

8 0

3 years ago