Which pair of species have the most nearly

identical atomic and molecular properties?

1. 35/17Cl and 80/35Br

2. 7/3Li and 9/4Be

3. 23/11Na and 23/11Na+

4. 19/9F and 19/9F-

5. 12/6C and 13/6C

In virginia and some other parts of the world, water has carved vast caverns out of underground limestone deposits. water, however, must contain dissolved carbon dioxide in order to break down the limestone. what role does the carbon dioxide play?

Which term represents an intermolecular force in a sample of water? * ?

Which pair represents isotopes? a. All of the other answers are correct b. Oxygen-16 and oxygen-18 c. Uranium-235 and uranium-238 d. 238U and 235U e. A carbon atom with 6 neutrons and a carbon atom with 8 neutrons

What is the volume of 12g of rain? and how do you know?

A student performs a dehydration experiment and starts with 6.79 grams of hydrate. After heating the hydrate and allowing it to cool, the student weighs the anhydrous salt. The mass of the resulting anhydrous salt is 3.17 grams.

In which main energy level does the 's' sublevel first appear? K (first main energy level) L (second main energy level) M (third main energy level) N (fourth main energy level)

What is the nuclear charge of an alpha particle?

How many protons electrons and neutrons does 13C contain

Are all individuals in a population of animals or a population of plants identical

What is the valency of rhodium