Question

Balancing Practice (some of these may be in the simulation)

Balance the following equations. You may find it useful to use scratch paper to write how many atoms of each element you have on both sides of the reaction.

16. ____P4(s) + ____F2(g) → ____ PF3(s)

17. ___C(s) + ____H2O(g) → ____CH4(g) + ____CO2(g)

18. ____HgO(s)→ ____O2(g) + ____Hg(l)

19. _____CaCO3(s) → ____CO2(g) + ____CaO(s)

Answer 1

see below

Step-by-step explanation:

16. 1 P₄(s) + 6 F₂(g) → 1 PF₃(s)

17. 2 C(s) + 2 H₂O(g) → 1 CH₄(g) + 1 CO₂(g)

18. 2 HgO(s)→ 1 O₂(g) + 2 Hg(l)

19. 1 CaCO₃(s) → 1 CO₂(g) + 1 CaO(s)