Friction opposes the movement of the crate across the warehouse floor. Does the frictional force change or stay the same as the crate gets heavier?

Which of the following is a physical change? a. burning a piece of wood b. sawing a piece of wood in half c. rust forming on an iron fence d. a copper roof changing color from orange to green

How does the attraction between particles affect the ability of a solvent to dissolve in a substance

Will mark as brainliest ! how many grams of iron metal do you expect to be produced when 245 grams of an 80.5 percent by mass iron (ii) nitrate solution react with excess aluminum metal? show all work needed to solve this problem!