53)

The mass of a calcium atom is due primarily to the mass of its

A) protons, only

B) neutrons, only

C) protons and neutrons

D) protons and electrons

Identify What are the two major motions of Earth as it travels through space?

Because hydroxide ions are alkaline, they influence the alkalinity of water Would this be true or false?

What is the mass of water required to prepare 250.0 g of 10.0% copper (ii) sulfate solution?

Whether an element is classified as a major or as a trace mineral is determined by

Which of the following would be a result of increased solar activity? A. Longer winters B. Warmer-than-normal sea surface temperatures C. Colder-than-normal sea surface temperatures D. Shorter summers

If the mass of a material is 119 grams and the volume of the material is 20 cm3, what would the density of the material be?

There are some exceptions to the trends of first and successive ionization energies. For each of the following pairs, explain which ionization energy would be higher: (a) IE₁ of Ga or IE₁ of Ge (b) IE₂ of Ga or IE₂ of Ge (c) IE₃ of Ga or IE₃ of Ge

Bases in solution produce what type of ions? a. sulfide ions b. chloride ions c. hydroxide ions d. hydronium ions

How many earth minutes are represented by 0.1 martian sol

Which of the following shows three elements in order of decreasing conductivity? A. Zn, Pd, Ag B. Pd, Ag, Zn C. Ag, Pd, Zn D. Zn, Ag, Pd Which of the following is the name of a metal? A. K B. Potassium chloride C. Potassium D. KCI