Which of the following is the most likely description of the product or products of a double-displacement reaction?

A) one new compound

B) two new compounds

C) oxygen and energy

D) one new compound and an element

A gas made up of atoms escapes through a pinhole 0.155 times as fast as h2 gas. write the chemical formula of the gas.

Which monatomic ions would you expect radium (z = 88) and selenium (z = 34) to form?

If you have 3.0 moles of argon gas at STP, how much volume will the argon take up?

A solution containing an equal number of hydrogen ions and hydroxide ions isA. basicB. alkalineC. acidicD. neutral.

A gas occupies 1.56 L at 1.00 atm. what will the volume be if the pressure becomes 3.00 atm

Of the total base sequence in human DNA, what percentage codes for proteins? A) Nearly 50 percent B) About 5 percent C) About 90 percent D) 100 percent

When an atom of phosphorus becomes a phosphide ion (P3-), the radius decreases, increases or stays the same?

Determine the percentage composition (by mass) of oxygen in NH4NO3.

Why does aluminum have a higher specific heat than gold?

The frequency of a given region of the electromagnetic spectrum is more than 3 x 1019 HZ. Note that the speed of light is 2.998 x 108 m/s. Which waves are found in this region? A. gamma rays B. visible light C. microwaves D. radio waves E. x-rays