Aluminum is sold in sheets that are 45.0 cm thick and 80.0 cm high. You want to but a piece that has a mass of 56.5 g. The density of Al is 2.70 g/mL. What must the length be of the sheet
of aluminum in mm.

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Which statement best describes the function of enzymes?