Newton's first law of motion states that an object will maintain its current state of motion unless acted on by an unbalanced net force. which of the following statements is not a proper application of this law to an object's motion? dave cannot throw a bowling ball as high in the air as a golf ball. when alex slams on the brakes in his car, his body flies forward until stopped by the seatbelt. the air hockey puck struck by brian moves in a straight line until it hits a wall. a rock remains motionless on the ground until jacob kicks it.

It's option A for sure.

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6