A red hot piece of metal with a mass of 150g is placed in 500g of ice cold water. The water gains 1000J of energy. According to the Law of Conservation of Energy, how much energy did the metal lose?

We just started a new lesson in chemistry and everyone hates it and i dont get it one bit. i hate school. h el p.balanced equationc3h8+5o2-> 3co2+4h2o1.) if you start with 14.8g of propane(c3h8) and 3.44g of oxygen, which is the limiting reactant -check my answer 2.)what mass of excess reagent is left over? 3.)what mass of carbon dioxide can be made? 4.)what mass of water is produced?

What is the mass of sodium in 3 moles of sodium chloride

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution