Which of the following processes are physical changes?
a) drying wet clothes
b) lighting a match from a matchbook
c) cutting snowflakes out of paper
d) melting butter for popcorn

How many grams of n2h4 will be consumed by 23 g of n2o4

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

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.