An atom has no electrical charge because

If 90.0 grams of ethane reacted with excess chlorine, how many grams of dicarbon hexachloride would form

For the reaction c6h14(g) & longrightarrow; c6h6(g) + 4h2(g), δp(h2)/δt was found to be 2.5 x 10-2 atm/s, where δp(h2) is the change in pressure of hydrogen. determine δp(c6h14)/δt for this reaction at the same time.

What type of context clue you understand the meaning of  quandary?