In order to occupy the same orbital, two electrons must have

a. the same direction of spin.

b. low energy.

c. opposite charge.

d. opposite spin.

Choose whether the statements about oil sands are true or false. The viscosity of bitumen is about 100 times greater than the viscosity of water. Oil from oil sand deposits is only obtained by first heating the sands at high temperatures.

You are less likely to see a total solar eclipse than a total lunar eclipse because a. the moon's shadow covers all of Earth during a solar eclipse. b. new moon phases occur less often than full moon phases. c.

Temperature is a measure of the average kinetic energy of the molecules. True False

At would be the saturation concentration (mole/l) of oxygen (o2) in a river in winter when the air temperature is 0°c if the henry's law constant at this temperature is 2.28 * 10-3 mole/latm

Which of the following elements has the lowest electronegativity? a. bromine b. lithium c. carbon d. fluorine

How many atoms are in 766.3 grams of Li?

The process by which DNA makes a complete copy of itself is called? A) Duplication B) Development C) Transcription D) Replication

The electron configuration 1s22s22p63s23p6 represents which noble gas?

What are some disadvantages of incinerators?

What mass of potassium chlorate would contain 40grams of oxygen?