Which statements accurately describe trends found in the periodic table? Check all that apply.

- Henry Moseley established a periodic table that arranges the elements by atomic number.
- The atomic mass decreases from left to right on the periodic table.
- The atomic number increases from left to right on the periodic table.
- Nonmetals create a “staircase” down the periodic table.
- Metalloids have the characteristics of both metals and nonmetals.

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

Will give ! what are the advantages and disadvantages of nuclear power? check all that apply. one advantage of nuclear energy is that it does not produce carbon dioxide emissions. storage of nuclear waste is a short-term problem associated with nuclear energy. the problem with uranium mining is that a large quantity of uranium must be extracted to meet energy needs because the energy release from uranium fission is so low. safe operation of a nuclear power plant can be jeopardized by a human mistake.