is two days enough to see Paris sites?

is two days enough to see Notre-Dame Cathedral and the Islands of the Seine River, The Latin Quarter and the Pantheon, The Louvre and the Royal Palace, Champs-Elysées and Arc de Triomphe, Les Invalides and the Eiffel Tower?

What's the best way to quickly see Paris' main sites in about 2 1/2 hours?

It’s far from optimal, but we’d like a guide to explain to us (in English) what we’re seeing in the area of the Notre Dame Cathedral and Eiffel Tower. We’d be looking to do something from about 10 a.m. - 12 noon, after landing at CDG airport on a Friday morning.