In the reaction 2k (s) + 2h2oh (aq) + h2 (g) which of the reactants is a solid

A) K

B) H2O

C) KOH

D) H2

Ionization energies decrease going from li to na to k. this is because

Bubbling or fizzing is an indicator of property change phase change physical change chemical change

Inorganic compounds which are found in the earth are called

In class, an instructor pours liquid nitrogen on an inflated balloon and the balloon collapsed on itself. Why does the ballon deflate although no gas is lost from the balloon?

What will knowledge of Chemisty enable you to do

How many milliliters of a 0.7% stock solution are required to make 2 l of 0.2% solution? how many ml of solvent will be required to carry out the dilution?

What percentage of the naphthalene molecules emitted a photon?

In an endothermic reaction, heat is absorbed from the surroundings. How does this affect entropy? A. The particles in the surroundings move slower and have decreased entropy. B.

The temperature of a sample of liquid water changes from 50°C to 30°C. Which statement best explains the change that must happen at the molecular level? A. The molecules move more quickly and their average kinetic energy increases. B.

The most important reason why solid sodium hydroxide is not used as a primary standard is