Newtons. The image provided shows two toy cars pushing against each other with a force given in
8 Newtons
5 Newtons
Left
Right
Son
Which of the following describes how the two-car system will behave? The two cars will -
O accelerate steadily to the right.
move at a constant speed to the right.
O accelerate steadily to the left.
. move at a constant speed to the left.

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.

Ametal with a large number of free flowing electrons most likely has good conductivity

The answer to this is the 3rd choice!