Answer:
it may also become impure,I think.
11.009306 or 11.009
Explanation:
boron 11 has atomic mass of 11.009306
both the substances will evaporate
Using a Laptop computer
<u>Group 2 is the correct answer.</u>
<u>Chlorine has a charge -1. It means that X is +2 so that the formula is XCl2. </u>