An element's atomic number is the

A. weight of the atom.

B. sum of the protons and neutrons in an atom.

C. number of protons in an atom's nucleus.

D. mass of the atom

Bacteria are smaller than viruses. True False

What is flammability? Why do builders avoid using flammable materials in homes?

Review the types of elements that create ionic bonds as well as the types of elements that create covalent bonds. • N2 • CCl4 • SiO2 • AlCl3 • CaCl2 • LiBr

What is the most likely oxidation state of sodium

Bubba falls out of a plane flying over his peanut field. What will be bubba speed after falling for 8 seconds?

Sulfur reacts with oxygen to form sulfur dioxide (SO2 (g), Delta. Hf = - 296.8 kJ/mol) according to the equation below. Upper S (s) plus upper O subscript 2 (g) right arrow upper S upper o subscript 2 (g).

A particle accelerator is used to accelerate particles, at high speeds until the particles fuse together and create a new element

Suppose you will fill a glass with ice cubes. When the ice cubes melt, is the glass still full

Small differences between parents and offspring accumulate over time. This process A. prevents parents from being able to care for their offspring. B. results in only one type of organism that has the exact same characteristics as its ancestors. C.

Use Boyle's, Charles's, or Gay-Lussac's law to calculate the missing value in each of the following. (a) V1 = 2.0 L, P1 = 0.62 atm, V2 = 1.0 L, P2 = ? atm (b) V1 = 230 mL, T1 = ?, V2 = 400. mL, T2 = 298 K K (c) V1 = 0.55 L, P1 = 740 mm Hg, V2 = 0.