Why are the average atomic masses of some of the elements in parentheses?

Why do we need to study chemistry?

In which instance is a gas most likely to behave as an ideal gas? A.) At low temperatures, because the molecules are always far apartB.) When the molecules are highly polar, because IMF are more likelyC.

How is an organism related to a population?

Can an ionic compound ever consist of a cation-cation or anion-anion bond?

Isotopes: A. of a given element have different numbers of neutrons B. are atoms that have gained or lost electrons C. of a given element have equal numbers of neutrons D. of a given element have equal numbers of protons and neutrons E.

If there are 2.54cm in an inch, how many inches are in 14.8cm?

Given the reaction: 2 Na (s) + Cl 2 (g) → 2 NaCl (s) The conversion factor for chlorine gas to sodium chloride is: 1 mol Cl 2 ≡ 2 mol NaCl. True or false?

Taking a cross section of a fiber can reveal what?

A? relay is a relay that not only maintains its contacts in the last position without a continuously energized coil, but also with a mechanical mechanism or remnant magnetism until it resets electrically.

What is a "curie"? A. standard charge of alpha particles B. mass of one alpha particle C. unit of radioactive disintegration D. a unit of gamma radiation