How do you rewrite 4 5/7 as an improper fraction. in steps please don't use files they don't work

Temperature and kinetic energy are proportional. a) adirectly b) directly c) indirectly

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

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.