Define mass. A: The amount of space an object takes up. B: The amount of matter in an object. C: How much an object can hold. D:The relationship between the amount of material an object has and the amount of space it takes up.

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m

Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg