Answer: A barrier should be created to overcome the atmosphere of the Venus, while launching spacecraft to Venus.
Explanation:
The atmosphere of Venus consists of 96.5% carbon dioxide, other composition includes nitrogen and other gases in trace amounts. The large amount of carbon dioxide in the atmosphere can extinguish the missile of the launcher of spacecraft thus it will become difficult in launch of spacecraft to the Venus.
So you have evidence that the experiment is true or correct.
Isotopes of elements have same atomic numbers and different mass number(atomic masses).
<span>The molar mass of the compound is 122 g. </span>
