The historical development of atomic theory
quiz
active
how did the development of the earliest idea about atoms differ from the later work of scientists?
o
it was based on sound evidence.
there were explanations for the idea.
it was based on the thoughts of an early philosopher,
there were experiments conducted to support the idea.

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

The reactions of photosynthesis occur in the of plant cell? a. mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll

The table lists the lattice energies of some compounds. compoundlattice energy (kj/mol)lif            –1,036licl            –853naf            –923kf            –821nacl            –786which statement about crystal lattice energy is  best  supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf. the lattice energy increases as the cations get larger, as shown by lif and licl. the lattice energy decreases as cations get smaller, as shown by nacl and naf. the lattice energy decreases as the cations get smaller, as shown by naf and kf.