2. When water droplets in a cloud combine, become too heavy, and fall to the ground, you

are experiencing

evaporation.

condensation.

precipitation

transpiration.

The process of passing electricity through water to chemically separate it into hydrogen and oxygen is called

Pretend you are the size of an atom and you are observing a reaction between a potassium ion and a fluorine atom. Describe how an ionic bond forms as the atoms react.

What are the two factors that affect ionic bond formation?

50.00 mL of 0.10 M HNO 2 (nitrous acid, K a = 4.5 * 10 - 4) is titrated with a 0.10 M KOH solution. After 25.00 mL of the KOH solution is added, the pH in the titration flask will be a. 2.17 b. 3.35 c. 2.41 d. 1.48 e. 7.00

For the following reaction 2 NO (g) + Cl2 (g) ⇋ 2 NOCl (g) The equilibrium concentrations of the gases at 1200°C are 0.026 M for NO, 0.596 M for Cl2, and 0.851 M for NOCl. Calculate the value of Kc.

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

Which is the atomic number of an atom with six valence electrons

O2 + CS2 → CO2 + SO2 Which of the following shows the equation balanced?