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krek1111 [17]
3 years ago
11

If an atom has a diameter of 395 pm, what is its radius?

Chemistry
1 answer:
joja [24]3 years ago
3 0

Answer:

197.5pm

Explanation:

Given parameters:

Diameter of the atom  = 395pm

Unknown:

Radius of the atom  =?

Solution:

Radius is the half of diameter;

  Radius = \frac{diameter}{2}

 Radius  = \frac{395}{2}   = 197.5pm

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What happens to the energy that is lost when water freezes?
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The volume of a sample gas, initially at 25 C and 158 mL, increased to 450 mL. What is the final temperature of the sample of ga
Rashid [163]

Answer:

Final temperature of the gas is  576 ^{0}\textrm{C}.

Explanation:

As the amount of gas and pressure of the gas remains constant therefore in accordance with Charles's law:

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where V_{1} and V_{2} are volume of gas at T_{1} and T_{2} temperature (in kelvin scale) respectively.

Here V_{1}=158mL , T_{1}=(273+25)K=298K and V_{2}=450mL

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