Identify the chemical formula for a compound that has one calcium (Ca) atom and 2 chlorine (CI) atoms and identify the type of bond between them.
CaCl2, covalent
Ca2CI, ionic
CaCl2, ionic

What is common about these molecules? a.their atoms are held together by covalent bonds. b.they are all made up of the same two atoms. c.their atoms are held together by ionic bonds. d.they are all made up of oxygen atoms only.

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

Why does asexual reproduction result in offspring with identicle genetic variation