What is the least reactive group on the periodic table?

What of the following could be classified as matter

the volume of a gas is 450mL when it's pressure is 1.00 atm. if the temperature of the gas does not change, what is the pressure when it's volume is changed to 2.00 l?

If 33.6 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass? A. 21.2% KCl B. 5.71% KCl C. 14.9% KCl D. 17.5% KCl

Which of the following do physicists believe are fundamental particles? a. three quarks and three leptons c. three quarks and six leptons b. six quarks and three leptons d. six quarks and six leptons

What is the chemical formula for methane?

Sexually reproducing organisms pass on genetic information as a? (answer fast)

A tree uses gas A to produce gas B. An animal uses gas B to produce gas A. What is gas B in this cycle? A. oxygen B. nitrogen C. carbon dioxide D. carbon monoxide

In which grouping of the periodic table do the elements have similar properties? only columns both rows and columns only rows in the periods

When do plants use the process of cellular respiration

What is the difference between Concentration and Solubility