What is the job of a scientist?

A. To write laws based on his or her knowledge.

O

B. To ask and answer scientific questions.

C. To answer ethical questions.

O

D. To ignore facts that do not support his or her theory.

What factor (s) may be responsible for the ionization energy within a period? A.) The valence electrons are further from the nucleus when moving from left to right. B.

Which planet has Charon as its moon? A. Mercury B. Pluto C. Mars D. Saturn

Why it is so hard to find life on other planets.

Is water with borax a solution or colloid?

How many atoms of hydrogen are in 24.4 g of methane?

How many moles of h2so4 are required to react with 6.80 miles of al2o3

Which explanation best describes a wave? A. a disturbance that travels through a medium with a transfer of energy and matter B. a disturbance that travels through a medium without a transfer of energy and matter C.

The requirements for one type of atom to substitute for another in a solid solution are:

How could you separate items that are different densities? explain

Why do elements within a period of the periodic table have different properties