Salt is dissolved in a flask of tap water. Distilling the mixture causes the salt to separate from the water. Which type of energy is required to begin the distilling process?

The conversion of nitrogen gas to compounds useful to crops is called nitrogen compounding

How is an ionic formed between two atoms

How does radiant heat from the Sun affect the water cycle? A. It causes precipitation. B. It causes evaporation. C. It causes cloud formation. D. It causes surface run-off.

Which of the following is an acid? O A. NH3 (Ammonia) O B. H2SO4 (Sulfuric acid) O C. LiOH (Lithium hydroxide) O D. KOH (Potassium hydroxide)

Which letter (a-f) represents activation energy (Ea) of the forward reaction (reactants) ? Which letter (a-f) represents activation energy (Ea) of the reverse reaction (products) ?

A small cubical furnace 50 by 50 by 50 cm on the inside is constructed of fireclay brick [k = 1.04 W/m. degree C] with a wall thickness of 10 cm. The inside of the furnace is maintained at 500 degree C, and the outside is maintained at 50 degree C.

What is the molar mass of Al2 (SO4) 3?150.03 g/mol 278.03 g/mol 342.17 g/mol 450.09 g/mol

1. Which of the following species determines the chemical properties of an atom? A. Electron B. Neutron C. Nucleus D. Proton 2. The following glasswares are used to measure the volume of liquids except A. graduated beaker B. pipette C. test tube D.

A sample of a certain material has a mass of 2.03 x 10-3 g. calculate the volume of the sample, given the density is 9.133 x 10-1 g/cm3.

What happens to a reactant molecules when forming product molecules