A swimming-pool worker wants the pools pH to be 7.2. She comes by to test the water and finds that the pH is 6.2. What should she do to correct this solution?

What are the differences between thermoplastics and thermosetting plastics? Give examples and draw a simple diagram to show what kind of linkages are there in the polymer chains.

The density of the fat tristearin is 0.95 g cm-3. Calculate the change in molar Gibbs energy of tristearin when a deep-sea creature is brought to the surface (p = 1.0 atm) from a depth of 2.0 km.

Moles of Cu in 7.8 * 10^21 atoms of Cu

Carrying capacity can vary depending on environmental conditions. a. True b. False

What does the law of conservation of mass state? Mass can be destroyed but not created during a chemical reaction. Mass can be created but not destroyed in a chemical reaction.

Does the buckminsterfullerene conduct electricity?

If an element has 2 valence electrons, how many dots will be in the elements dot diagram?

the state of water is determined solely by the conditions of: A) volume and mass B) temperature and volume C) pressure and mass D) pressure and temperature

When a chemical reaction and its reverse are occurring at the same time and at the same rate, the reaction has achieved a. displacement. c. imbalance. b. equilibrium. d. decomposition.

A certain shade of blue has a frequency of 7.04 * 1014 Hz. What is the energy of exactly one photon of this light?