Which of the following elements has eight valence electrons?

a. argon

b. beryllium

c. chromium

d. oxygen

What was the open-range system

How are freezing and condensation alike? A Both describe ways a solid can change. B Both occur when particles of matter spread apart. C Both involve the addition of heat. D Both involve the loss of heat.

How many ml of 2.50 M NaOH solution are required to make a 525 mL of 0.150 M?

How does acid taste and feel?

A farmer had an accident and spilled a chemical into his pond. Several days later, he notices many dead frogs around the pond. That summer, the number of gnats around the pond was higher than ever. This is because a.

The currents of the Earth's oceans are caused by A. marine organisms and volcanic eruptions. B. disturbances by submarines and large ships. C. waves and earthquakes along tectonic plate boundaries. D.

You are on an alien planet where the names for substances and the units of measures are very unfamiliar. Nonetheless, you obtain 19 quibs of substance called skvarnick.

How do you know if an element is an ion?

Which gas is not a greenhouse gas, A methane, B Water Vapor, C, Carbon dioxide, D, Nitrogen, E, Ozone

A very small equilibrium constant means ... a. an equal amount of reactants and products c. more products b. more reactants d. system isn't at equilibrium