How many grams of diazine (N2H2) are there in 2.55 mol of the compound

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.

Why are pipes bursting in the in extremely cold weather?

One student said that the investigation was not valid (a fair test). write a plan for the investigation that includes improvements to the method and apparatus