In a given chemical reaction, the energy of the products is less than the energy of the reactants. Which statements is true for this chemical reaction

Which of the following represents an upright image? a. -do b. +m c. -m d. +do

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

What is the length x of the side of the triangle below? (hint: use the cosine function)