6 02
2
Table 1 shows the carbon footprint during the manufacture and use of three cars.
Table 1
Car
Mass of CO2
produced during
manufacture in kg
Mass of CO2
produced when
driving
in kg per km
Total mass of CO2 Total mass of CO2
produced from produced from
manufacture and manufacture and
40 000 km driving 100 000 km
driving in kg
in kg
Car A
14 000
0.123
18 920
26 300
Car B
20 000
0.085
23 400
28 500
Car C
23 000
0.044
24 760
27 400
Evaluate the carbon footprint of the cars.
Use information from Table 1.
[6 marks]

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72