Element: calcium symbol: Ca Atomic weight: g Mass of one mole: g/mol

Fill in the coefficients that will balance the following reaction: a0Zn + a1Fe (NO3) 2 → a2ZnNO3 + a3Fe

A certain shade of blue has a frequency of 7.04 * 1014 Hz. What is the energy of exactly one photon of this light?

Describe the redox reaction. Check all that apply 2AI (s) + 3ZnCI2 (g) → 3Zn (s) + 2AICI3 (aq). Aluminum atoms transfer electrons to chlorine atoms. Zinc is reduced. Zinc is the reducing agent. The oxidation number of chlorine does not change.

I want to see the amount of time i am given will affect the number of jumping jack i can complete. i need the CER=Explanation

Which is the strongest base? [H+] = 10^-9 [H+] = 10^-11 [H+] = 10^-10 [H+] = 10^-12

Which describes energy changes during nuclear fission? A very large amount of energy is produced from a tremendous mass. EEUU A very large amount of energy is produced from a very small mass. G .

A 0.75mol calcium carbonate (CaCO3) pellet has what mass?

The pH of the acid in the stomach is 2. When a person has heartburn, the acid in their stomach is coming up the esophagus (lower throat) and burning the lining of the esophagus. Why would a person take an Alka Seltzer tablet for heartburn?

Calculate the photon energy (in joules) for the light emitted from the hydrogen atom if ninitial = 4 and nfinal = 2.

The distance from one place to another