Which chemical equation represents a combustion reaction? A) H2 + 12 → 2H1
B) 2Zn + 2HNO3 → Zn(NO3)2 + H2
C) NaCl + KI → Nal + KCI
D) LC2H6+
+ 702 + 4CO2 + 6H2O

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

What woukd most likely be the transmittance at a 0.70 m solution of solute a? a) 7.6%b) 1.1%c)4.0%d)4.6%

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.