Which of the following are most directly involved in
chemical bonding?

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

Draw the structure for 5-isopropyl-2-methyl-3-nonene

Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?