Carpenters use nails instead of screws. If that isnt the answer you are looking for than another answer would be that screws hold better than nails. When you screw wood together they don't slide or turn sideways like when you nail wood together. When they are nailed together you can turn the two pieces of wood while they are stuck.
Answer:
By definition, a percent w/v solution is the measure of weight per 100 mL. 7.5 g/100 mL = 7.5%
Explanation:
