Answer:
Non-polar and non-polar molecules do not attract each other.
Explanation:
Dont forget to mark me as brainliest if it helped you ( Seriously you will thank me later)
Answer:
Metals at the top
nonmetals at the bottom
metalloids in the middle
Don't quote me, i could be wrong. i think this is the correct order.
Explanation:
12 times breathe give 240 ml of pure 
. Each breathe gives 20 ml of .
Let us consider, volume of air per breathe= x ml.
Pure from inhaled air= 
ml and Pure from exhaled air= 
ml.
Pure from inhaled and exhaled air= 20 ml
So, + = 20
Therefore, x = 55.5 ml
So, volume of air per breath= 55.5 ml.
(Question 1 atoms) (question 2 cells)
Answer:
sry i don't know that language
