The double-replacement reaction that occurs when aqueous solutions of calcium chloride and silver nitrate are combined produces a solution of calcium nitrate and a precipitate of silver chloride. CaCl2(aq) + 2AgNO3(aq) → Ca(NO3)2(aq) + 2AgCl(s) How many moles of calcium chloride are needed to react completely with 2.28 moles of silver nitrate?
If 0.0623 moles of CaCl2 reacts completely, how many grams of AgCl are produced?
In order to produce exactly 1.50 g of AgCl, how many moles of each of the two reactants should be used?

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

1 is the answer to this problem