search is now on for an element with the atomic number 119 based on periodic trends which of the following would most likely be true of this element

Based on the equation and the information in the table, what is the enthalpy of the reaction?

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride