2) AgNO3 + Cu Cu(NO3)2 + Ag 3) CF4 + Br2 CBr4 + F2

4) GaF3 + Cs CsF + Ga

5) N2 + H2 NH3

6) NaF + Br2 NaBr + F2

7) CH4 + O2 CO2 + H2O

8) K + Cl2 KCl

9) Al + HCl H2 + AlCl3

10) N2 + F2 NF3

11) SO2 + Li2Se SSe2 + Li2O

12) NH3 + H2SO4 (NH4)2SO4

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87