Each element possesses unique chemical and physical properties. true or false

Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products

Chris is about to do an experiment to measure the density of water at several temperatures. his teacher has him prepare and sign a safety contract before beginning the experiment. which term is mostlikely part of the safety contract

How many grams of carbon are in 237 grams of ethanol(c2h5oh) and how many sulfide ions are in 2.45 moles of aluminum sulfide show me you you got the answers