It goes Meter mega meter giga meter and kilometer
Density = mass / volume
19.3 = 13 / m
m = 13 / 19.3
m = 0.67g
The correct way to write this number in scientific notation : 6.022 x 10²³
<h3>Further explanation
</h3>
Scientific Notation is a standard form of writing numbers used in mathematical operations
The rules:
1. Writing order : first digit, decimal point, next digit
2. Then followed by powers of 10 (the value can be +/-)
If the value is> 10 (the power of 10 is +), the decimal point is moved to the left, to the right of the first digit
If the value is <10 ((the power of 10 is -), the decimal point is moved to the right, to the right of the first digit
I certainly didn't count the details of the number of zeros listed, but only saw the answer choices.
And the right ones are: 6.022 x 10²³
Using formula:
-(1)
where w is weight of object,
m is mass of the object, and
g is the acceleration of gravity.
mass, m = 6 lbm (given)
acceleration of gravity, g =
(given)
Now, substituting the values in equation (1):

Since, 
So, 

Hence, the mass of an object is 5.976 lbf.
Answer: option B. 0.020 mole
Explanation:Please see attachment for explanation