Which of Newton's laws states that an object at rest tends to stay at rest, and an object in motion tends to stay in motion unless acted on by an unbalanced
force?
A. Newton's first law
B. Newton's law of universal gravitation
C. Newton's second law
D. Newton's third law

Two models of the same compound are shown. in what way is model b better than model a? model b shows the types of elements in the compound, but model a does not. model b shows the three-dimensional shape of the molecule, but model a does not. model b shows how the atoms in the molecule are connected, but model a does not. model b shows the number of atoms of each element in the molecule, but model a does not