The standard internal energy change for a reaction can be symbolized as δu°rxn or δe°rxn. for the following reaction equations, calculate the energy change of the reaction at 25 °c and 1.00 bar. sn(s)+cl2(g) > sncl4(l) + h(kjmol) -511.3. h2(g)+cl2(g) > 2hcl(g) + h(kjmol) -184.6

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.

The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?