Using the average atomic masses given inside
the front cover of the text, calculate the number
of moles of each substance contained in the
following masses.
a. 2.01 x 10-2 g of silver
b. 45.2 mg of ammonium sulfide
C. 61.7 ug of uranium
d. 5.23 kg of sulfur dioxide
e. 272 g of iron(III) nitrate
f. 12.7 mg of iron(II) sulfate
g. 6.91 x 103 g of lithium hydroxide

b.

the accuracy of the data.

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.