One atom of silicon can properly be combined in a compound with

A. four atoms of calcium.

B. two atoms of oxygen.

C. one atom of chlorine.

D. three atoms of hydrogen.

If some of the gas bubbles from the reaction had escaped out the bottom of the tube, how would this have affected your value for R?

Which of the bonding forces from the list below would need to be overcome to convert NH3 from a liquid to a gas? (Enter the letters in order of all that apply, e. g. AB, ABD, ACDE, etc.

Which of the following statements is true based on the propositions of the kinetic molecular theory? 1) Solids have definite shape and volume, and their particles are in a fixed non-vibrating position.

2.0 L of nitrogen gas at 480 torr is compressed into a 0.50 L container. What is the new pressure of the nitrogen gas?

what pressure in N/m2 would be exerted if a 65 kg person were sitting on a stool with a seat diameter of 12 inches?

What is the value of Kw at 25°C? 1.0 x 10-14 1.0 x 10-7 1 7 14

Which statement best describes a bacterial cell? A It contains more than one cell. B It is a complete organism. C It is part of a larger organism. D It contains different kinds of cells

Lithium (Li) and oxygen (O) are both in period 2. They both have? a. similar properties b. the same number of protons c. two electron shells d. the same number of electrons

What compares a law and a theory?

Explain what domain would best be represented by the "?" in the diagram. A) Eukarya because the organisms are all eukaryotic. B) Eukarya because the organisms are all prokaryotic. C) Bacteria because some of the organisms are autotrophs.