Answer: Think and you will get it right!
Explanation:
To find the mass percent composition of an element, divide the mass contribution of the element by the total molecular mass. This number must then be multiplied by 100% to be expressed as a percent.
<u>Answer:</u> The result of the given calculation is
<u>Explanation:</u>
Scientific notation is defined as the notation in which a number is expressed in the decimal form. This means that the number is always written in the power of 10 form.
We are given an expression:
The operation carried out in the above expression is division operation. The units are also treated in the same way.
The solution for the above expression is:
The value in scientific notation is
Hence, the result of the given calculation is
Answer:
well 4.2 times 10 is 42 and 6.1 times 10 is 61
Explanation:
C & 4
Explanation: 1s2 2s2 2p6 3s2 3p2