Which element has an atom in the ground state with a total of three valence electrons

A liquid with a high viscosity cannot be a mixture.

Which two forms of life existed together on the Earth during the same time period

How to tell how reactive an element is on the periodic table?

Which of the following represents the lowest temperature that can be theoretically achieved?

A diatomic element with a high first ionization energy would most likely be a ... ? A) metal or nonmetal B) high or low electronegativity

Which statement is true about oxygen-17 and oxygen-18?

A man is making chicken noodle soup and has found it to be too salty. What method could he use to make the soup less salty? a. Add equal measured amounts of water to the soup. b. Bring the soup to a boil so that some of the broth evaporates. c.

A solution of H2SO4 (aq) with a molal concentration of 3.97 m has a density of 1.216 g/mL. What is the molar concentration of this solution?

How can you chose values for x when making a table of values representing a real world situation?

If a sample containing 2.50 ml of nitroglycerin (density=1.592g/ml) is detonated, how many total moles of gas are produced?