Balance the following skeleton equations. (a) Al(s) + F2(g) → AlF3(s) (b) K(s) + O2(g) → K2O(s) (c) C6H12O6(s) + O2(g) → CO2(g) + H2O(l) (d) H2SO4(aq) + NaOH(s) → Na2SO4(aq) + H2O(l) (e) Mg(CH3COO)2(aq) + AgNO3(aq) → Mg(NO3)2(aq) + AgCH3COO(s) (f) H2O2(aq) → O2(g) + H2O(l) (g) HCl(aq) + Ba(OH)2(aq) → BaCl2(aq) + H2O(l)

quartz

explanation:

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.