Number of Protons
Number of
Neutrons
Atomic
Number
Mass
Number
Element
(symbol)
A
7
B
15
С
D
E
26
56
Using the periodic table, complete the table to describe each atom. Type in your answers,
A
B
С
D

There are 6.022 x 10^23 atoms of hg in 1 mole of hg. the number of atoms in 4.5 moles of hg can be found by multiplying 4.5 by 6.022 x 10^23 a. 2.7 x 10^24 b. 27 x 10^23 c. 2.71 x10^24 d. 27.099 x 10^23

Iron (3) oxide will decompose in the presence of hydrogen gas and heater to produced iron and digydrogen monoxide white a balanced chemical equation

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.