How do you determine the theoretical number of electrons in an energy level?

5 Deep water forms in the ocean when a. cold air decreases water density. b. warm air increases water density. C. rain falls into the ocean. d. salinity increases.

For a hypothesis to be testable, you must be able to plan an investigation to determine if the hypothesis can be supported by data. True or False

You decide to mix up a pitcher of tea. You put water, tea, sugar and lemons in a pitcher and stir it up. How do you decide if you just created a mixture or a compound?

In a desert, soil containing a mixture of sand and small rocks is exposed to wind erosion. Over time, how would the land surface change?

Be sure to use proper significant figures for all remaining problems. how many grams of nacl are present in 350 ml of 0.020 m nacl solution? (remember that 1 mole nacl = 58.44 g/mole.)

Which substance is a diatomic molecule? a. he b. o2 c. co2 d. h2o?

What is the difference between the electronegativity values of sodium and bromine?

Which of the following elements is the most stable element? argon, manganese, phosphorus, robidium

List results of Chemical Reactions.

When you measure something in meters cubed, you are measuring