Answer:
Option B
Step-by-step explanation:
The question can be solved without observing the masses and calculating them.
How?
- Periodic table law states that masses get increased in group and get decreased in period.
- Hydrogen is the 1st element so it has least mass.
Now
Only option B and D has Hydrogen at first.
Now coming to last elements Carbon and Gold
Gold is heavier as per periodic table.
So option B is correct
Answer:
False
Step-by-step explanation:
8. To find the answer you can eather multipy it for each of the sides or you can add it 6 times once for each side

9. You basicly do the same thing as the previous problem but with the new numbers and you add each number 2 times
10. For are you multiply Base × Height So all you have to do is Multiply the 2 numbers shown together

11-12 Is the same but witb the new numbers
I hope this helps!
Answer: a is correct
Step-by-step explanation: