Determine the number of moles in each of the following: 45.2 g Ag

67.1 g Cr

53.9 g Mn

Determine the number of grams in each of the following:
1.56 mol K

2.5 mol Ba

110 mol He

Determine the mass in grams of each of the following:
5.04 x 1024 atoms N

2.01 x 1024 atoms Ca

8.32 x 1021 atoms Sn

Determine the number of particles contained in each of the following:
50.3 g Cu

145g Si

0.67 g Cl

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.