Calcium oxide or quicklime (cao) is used in steelmaking, cement manufacture, and pollution control. it is prepared by the thermal decomposition of calcium carbonate: caco3(s) → cao(s) co2(g) calculate the yearly release of co2 (in kg) to the atmosphere if the annual production of cao in the united states is 8.6 × 1010 kg.

The yearly release of into the atmosphere is .

Explanation:

Annual production of CaO =

Moles of CaO :

According to reaction, 1 mole of CaO is produced along with 1 mole of carbon-dioxide.

Then along with   of CaO moles of carbon-dioxide moles produced will be:

of carbon-dioxide

Mass of moles of carbon-dioxide:

The yearly release of into the atmosphere is .

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.

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