How many moles of Carbon dioxide are produced when 4.5 mol of Boron carbonate decomposes completely?

n CO2 = 13.5 mol

Explanation:

balanced reaction:

∴ n B2(CO3)3 = 4.5 mol

⇒ n CO2 = (4.5 mol B2(CO3)3)*( 3 mol CO2 / mol B2(CO3)3 )

⇒ n CO2 = 13.5 mol

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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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