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tekilochka [14]

2 years ago

11

Carbon exists in nature as three isotopes. Given the atomic masses and relative abundance of the isotopes, what is the average a

tomic mass of carbon? A. 12. 000 amu B. 12. 011 amu C. 13. 002 amu D. 13. 003 amu E. 14. 003 amu.

1 answer:

Shtirlitz [24]2 years ago

3 0

Answer:

B. 12. 011 amu

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<span>Balanced chemial equation:

2NaI(aq)+Hg2(NO3)2(aq) →Hg2 I2 (s) + 2 NaNO3 (aq)

You can see it better if I use latex:

$2NaI(aq)+Hg_2(NO_3)_2(aq) =Hg_2 I_2 (s) + 2 NaNO_3 (aq)$

As per the phases this is the interpretation:

The symbols (aq) stands for aquous meaning that the compound is dissolved in water.

The symbol (s) stands for solid, meaning tha the compound precipitate and is not dissolved in water.</span><span>

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What caused wind to blow

Arlecino [84]

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2 years ago

Which of the following scientists was the first to determine the

Maru [420]

Answer:

Robert Boyle

Explanation:

Robert Boyle was an Irish chemist and is famously referred to as the first modern chemist. He was born on the 25th of January, 1627 in Lismore, Ireland and died on the 31st, December 1691, London, United Kingdom.

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Boyles states that when the temperature of an ideal gas is kept constant, the pressure of the gas is inversely proportional to the volume occupied by the gas.

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