What is a major source of calcium and sodium in oceans? a) air pollutants b) gases from active volcanoes c) minerals dissolved in aquifers d) weathering and erosion of rocks

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

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.)

What three things does a balanced equation show you?