1. Convert 456 yards/ hour to miles/hour

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-

Achemical reaction is done in the setup shown, resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?