The mass of the ocean is about 1.8 X 10^21 kg. If the ocean contains 1.076% sodium ion, Na+, what is the mass in kilograms of sodium in the ocean?

How is the way that a wind turbine works similar to the way that a hydroelectric plant works? How is it different?

Which of the following is not true about the importance of the carbon cycle to living things? a. Plants use carbon dioxide to make energy. b. Carbon is the second most abundant molecule in organisms. c.

In which compound is the ratio of metal ions to nonmetals ions 1 to 2 A) calcium bromide B) calcium oxide C) calcium phosphide D) calcium sulfide

What two elements do not need eight valence electrons to stay stable?

What is the mole fraction of a nonelectrolyte in a aqueous above which the vapor pressure of water is 745 mm hg at 100C

What kind of ions do a sodium atom and a chlorine atom become when a valence electron is transferred from one to the other?

NaOH and bleach have several characteristics in common. They include all BUT one of the characteristics listed.

What is the general form for the simplest type of acid-base reaction?

Which element has a larger atomic radius than sulfur? chlorine cadmium fluorine oxygen

Which of the following procedures is used when refining petroleum? Increase the temperature of the oil. Decrease the temperature of the oil. Increase the pressure of the oil. Decrease the pressure of the oil.