What type of chemical reaction is shown in the chemical equation below? MgCl2 + Li2CO3 → M9CO3 + 2 LICI Synthesis O Decomposition O Single Displacement O Double Displacement Combustion

Select the type of reaction that is represented by the equation below: 2 NH3 + N2 + 3 H2 synthesis O decomposition single replacement O double replacement

From the list of reactions below, pick out the combustion reactions?        1) 2C2H6(g) + 7O2 (g) →  4CO2(g) + 6H2Ol)           2) MgO(s) + CO2 (g) → MgCO3(s)           3) ZnCO3(s) →  ZnO (s) + CO2 (g)           4) 2CH3OH(l) + 3O2 (g) →  2CO2(g) + 4H2O(l)     a 1, 2, 3, and 4   b 3 and 4   c 2, 3, and 4   d 1, 3, and 4   e 1 and 4

A student determined 2.17 g as a maximum theoretical yield of aspirin (from calculations). When he synthesized aspirin he obtained 1.85 g of aspirin product. Determine the percent yield. O 117% O 14.7% O 17.3% 0.854% 85.3%