Dubious Decision

Think twice bout the sign what did it say? (think twice)
Think twice there's a line between those lanes
I think right now you best consider a way round a collision
Pull off slow and tell me what you'd change

Think twice that's an acid that's a base (think twice)
Think twice it's stoichiometry
I think right there you've got yourself a dubious decision
Look again at the formula on the page