A hairdryer has a power rating of 1.5kW. How much will it cost to use this hairdryer for 10 minutes if electricity costs 11p per unit?

Which feature do highland climates have that lower elevation areas do not?

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

Consider the directing effects of the substituents on salicylamide and predict the possible structures of the iodination products. which do you think will be the major product?