Please help:( find the equation

1. Pb(NO3)2 + Na2CO3 → PbCO3 + NaNO3

2. Ca10F2(PO4)6 + H2SO4 → Ca(H2PO4)2 + CaSO4 + HF

3. SiC + Cl2 → SiCl4 + C

4. NaCl + F2 → NaF + Cl2

5.Al + HCl → AlCl3 + H2

6.Ca3(PO4)2 + SiO2 → P4O10 + CaSiO3

7. C2H5OH + O2 → CO2 + H2O

2h2s + 3o2 2so2 + 2h2o which option gives the correct mole ratios? h2s: so2 = 2: 2 and o2: h2o = 3: 2 h2s: so2 = 2: 3 and o2: h2o = 3: 2 h2s: so2 = 4: 4 and o2: h2o = 5: 4 h2s: so2 = 4: 6 and o2: h2o = 4: 4

Remember to use the proper number of significant figures and leading zeros in all calculations.gelatin has a density of 1.27 g/cm³. if you have a blob of gelatin dessert that fills a 2.0 liter bottle, what is its mass? 2540 g2500 g3.9 x 10-43.937x 10-4

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?