Choose an element that will gain 1 electron in order to achieve noble gas configuration? what is the group name for that element?

Describe the differences between elements, compounds, and mixtures. Into which of these categories does a solution fall? Explain.

Measuring the level of lead in drinking water is the job of?

How can a gardener remedy soil that is overly basic.

A solution of a base differs from a solution of an acid in that the solution of a base? A. is able to conduct electricity B. is able to cause an indicator color change C. has a great [H3O+] D. has a great [OH-]

Convert 1.00 atm of pressure to its equivalent in millimeters of mercury.

Magnetism easily separates what mixture? A). Sand and glass B). Sand and iron C). Sand and clay D). Sand and aluminum

Match the science with the best description?

Can magnetism be used to identify a substance

Nitrogen dioxide dimerizes to give dinitrogen tetroxide: 2NO2 (g) → N2O4 (g). At 298 K, 12.55 g of an NO2/N2O4 mixture exerts a pressure of 0.963 atm in a volume of 6.92 L. What are the mole fractions of the two gases in the mixture?

What is the concentration of a solution, in gsolute/100gsolvent, made using 2.83 g of KNO3 in 2.03 g of H2O? Do not include units in your answer.