If 15 g of nacl is dissolved in 100g of water, what is the mass % of nacl in the solution

What is the difference between a saturated and unsaturated fatty acid?

How is the light emitted by an atom related to its electron configuration? I've been struggling to figure out how exactly to answer this.

Which statement is true according to the kinetic theory? Molecules of different gases with the same mass and temperature always have the same average density.

What do most psychologists believe to be the cause of development? a. a family's socioeconomic status b. interaction of nature and nurture c. only due to nurture d. only due to nature

Which subatomic particles had negligible mass and travels around outside the nucleus? A protons B neutron C electron D orbital?

Which of these represents a chemical change?

A chemist measures the amount of iodine solid produced during an experiment. she finds that 1.6 g of iodine solid is produced. calculate the number of moles of iodine solid produced.

Write the equilibrium constant: Pb3 (PO4) 2 (s) = 3Pb2 + (aq) + 2PO2 (aq)

How many orbitals are there in the shell with n = 4?

Using the balanced equation shown below, calculate the mass of c3h8 that must react in order to release 2.45*106 * 106 kj of heat. δhrxn = - 2219.9 kj