8 In general, ionic bonds form between a metal and a nonmetal. Covalent bonds usually form between two nonmetals.
Which of the following pairs of atoms is most likely to form a covalent bond?
A magnesium and chlorine
B copper and bromine
C nitrogen and oxygen
D potassium and phosphorus

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

If element x has 99 protons how many electrons does it have

16. a brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 n on him. the mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20m/s2 size 12{1 "." "20"" m/s" rsup { size 8{2} } } {} backward. (a) what is the force of friction between the losing player’s feet and the grass? (b) what force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) draw a sketch of the situation showing the system of interest used to solve each part. for this situation, draw a free-body diagram and write the net force equation.