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4vir4ik [10]
3 years ago
7

Question 5 of 10

Chemistry
1 answer:
vitfil [10]3 years ago
5 0

Answer:

A

Explanation:

A option is correct .

you cannot create energy neither you can destroy it but you can only convert into other form

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If the density of water is 1g/ml, what is the mass of 254ml of water?
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The mass of 254 mL of water is 254 g. Since the density of water is 1g/mL, we can simply multiply the density 1g/mL by 254 mL of water and get 254 g as our answer.  Since mL is in the numerator and denominator, mL cancels out and we are left with g only. 
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Chlorine has an atomic number of 17.
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Explanation:

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What order must the earth, the sun, and the moon be in to be a lunar eclipse?​
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Describe a method to calculate the average atomic mass of the sample in the previous question using only the atomic masses of li
alexira [117]

Answer:

Explanation:

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The abundace is the proportion or percentage or fraction by which each of the isotopes of an element occurs in nature.

This can be expressed below:

        RAM = Σmₙαₙ

where mₙ is the mass of isotope n

           αₙ is the abundance of isotope n

for this problem:

RAM of Li = m₆α₆ + m₇α₇

       m₆ is mass of isotope Li-6

        α₆ is the abundance of isotope Li-6

       m₇ is mass of isotope Li-7

        α₇ is the abundance of isotope Li-7

3 0
3 years ago
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