The sand provides a rough surface on top of the ice for the cars' tires to grip onto. It provides more friction. Salt melts the ice and often provides more friction (the disadvantage is that it eats concrete!).
Force of friction is magnetic force
A variable is not consistent or having a fixed pattern; liable to change.
Answer:
Explanation:
2 KCIO,(s) 2 KCI) + 3 02(g)
For every 3 moles of O2 you need 2 moles of KClO3
2/x = 3/15 Cross Multiply
3*x = 2 * 15 Combine the right
3x = 30 Divide by 3
3x/3 = 30/3 Combine
x = 10