What are the horizontal rows of the periodic table called

Where is insulin produced? A. stomach B. pancreas C. large intestine D. small intestine

About 95-98 percent of alcohol is oxidized to what two substances

How many atoms are in Ca (C2H3O2) 2

In a certain crystalline material the vacancy concentration at 25 c is one-fourth that at 80 c. at what temperature would the vacancy concentration be 3 times that at 80 c?

What 2 particles account for almost all if the mass of an atom

The characteristic flame test colors of metal ions are due to atomic emission spectra. Duscuss the relationship between the absoption and emission of light and the factors responsible for flame test colors.

Should a bartender use ice and scoop directly from ice machine or use an ice holding device and scoop to make drinks and refill drinks from

What classification should this reaction have? 4Al + 3O2 → 2Al2O3

If you start with 100 grams of a radionuclide, how much will you have after two half-lives have passed?

Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.