Which of the following areas is the most efficient at generating electricity from wind energy? a

windmills on the plains
b

windmills offshore
c

windmills in the hills
d

their efficiency is all the same

Write two balanced equations 1. dissolving of solid sodium hydroxide in water 2. the reaction of sodium hydroxide solution with hydrochloric acid

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)