In which of the following sets is the symbol of the element, the number of protons, and the number of electrons given correctly? a. In, 49 protons, 49 electrons
b. Zn, 30 protons, 60 electrons
c. F, 19 protons, 19 electrons
d. Cs, 55 protons, 132.9 electrons

100mg magnesium reacts with 20ml of 1.0m hcl

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Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules