Which of the following is true about carbon dioxide? a.) carbon and oxygen are chemically bonded in it. b.) carbon and oxygen retain their original identity in it. c.)it can be separated into carbon and oxygen using physical methods. d.)the proportion of carbon and oxygen is different in different samples of the gas.

a) Carbon and oxygen are chemically bonded in carbon dioxide.

The elements lose their individual identities in CO₂, and they always combine o the proportion C:O = 1:2.

You cannot separate the elements from each other by physical means.

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying

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