Calculate the atomic mass of element “X”, if it has 2 naturally occurring isotopes with the following masses and natural abundances:   Symbol              Isotope mass                                          % Abundance               X-45                      44.8776 amu                                       32.88%               X-47                      46.9443 amu                                       67.12%

“I suppose I’m just a dunce. That’s what my father always calls me.”

It has never been proven that there’s life after death. That’s why I believe that when you’re dead you’re dead.

If p then qpTherefore q

If p then qpTherefore r

“I don’t see why I just can’t use a phony ID in order to get into the night club. Martin and Stan did it last week, and lots of other guys do it all the time.”

A ______is a deductive argument with two premises.

In the Simpson case, it would have been unreasonable for the Jury to have accepted either the cross-contamination hypothesis or the planting hypothesis. It would have been to commit the fallacy of

“It was my fault that my dad broke his hip. I knew the floor was wet and I didn’t even say anything. I deserve to rot in hell.”

A hypothesis worthy of acceptance will be one that