An aqueous solution containing 35.5 g of an unknown molecular (non-electrolyte) compound in 151.0 g of water was found to have a freezing point of -1.3 ? c

True, the standard unit for volume is liters which can be represented by either a lower case "l" or a capital "l"

A) the enthralling of formation for pure element in its standard state is always positivehope this : )

Answerhund's rule;

The law of conservation of mass states that a mass of an object or the amount of matter composed inside an object or thing will not change unless it is added or removed of the matter that is contained in the object itself.