Completely reacting 150.0 g of a substance with oxygen releases 395.1 j of energy. how much energy would be released if 450.0 g of the substance completely reacted with oxygen?

Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Which element is least likely to undergo a chemical reaction