0.50 miles of sodium chloride dissolved to make 0.75 liters of solution

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

Which formula can be used to calculate the molar mass of hydrogen peroxide

Draw any one of the skeletal structures of a 2° alkyl bromide having the molecular formula of c6h13br and two stereogenic centers. indicate chirality by using wedge and hashed wedge notation. lone pairs do not need to be shown.