Which element has a complete valence electron shell?

selenium (Se)

oxygen (O)

fluorine (F)

argon (Ar)

jenny dissolves as much salt as she can in 100mL of room temperature water. she learned in class that less salt will dissolve in cold water than hot water. jenny adds some ice in the salt water and observes what happens.

When methanol, CH3OH, CH3OH, is burned in the presence of oxygen gas, O2, O2, a large amount of heat energy is released. For this reason, it is often used as a fuel in high performance racing cars.

Sodium chloride as a compound does not truly exist in the ocean. True or False

Which factors affect growth of the human population? migration births deaths

Why do we crack molecules?

How many bonds are present in HCI? a) 1 b) 3 c) 4 d) 2

Determine the number of moles 1) 20g Na and 2) 34g H2O

Nitrogen dioxide (NO2) gas and liquid water (H2O) react to form aqueous nitric acid (HNO3) and nitrogen monoxide (NO) gas. Suppose you have 5.0 mol of NO2 and 11.0 mol of H2O in a reactor. Suppose as much as possible of the NO2 reacts.

How long does it take the Earth to rotation and revive

What is Charles' law formula?