Using the periodic table, complete the following. Element: iron
symbol: Fe
Atomic weight:
g
Mass of one mole:
g/mol

Answer in explanation

Explanation:

We are to use a standard periodic table to answer this question

According to a periodic table;

The atomic weight of iron is 55.845 atomic mass unit

The mass of one mole of iron is same 55.845 g/mol

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph