Aspirin is a compound that contain nine carbon atoms, eight hydrogen atoms and four oxygen atoms. It is used as a pain killer. An aspirin tablet contain 1.25x 10^30 molecules. How many moles of the compound are present in the tablet also write its empirical and molecular formulas.​

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

Enzymes affect the reactions in living cells by changing the

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule