Calcium carbonate decomposes on heating as shown CaCO3 CaO + CO2. Theoretically, 35 g of calcium oxide was expected to be produced but only 7g of
calcium oxide was experimentally obtained. What is the percentage yield of calcium
oxide?
20
O 25
O 14
O 10

Someone, part 1: which compound does c represent? part 2: name a process that could release this compound into the air. part 3: explain how the elements that form it are conserved during the carbon cycle. use complete sentences to explain your answer. justify how this compound was created from a recycling of carbon in the carbon cycle. use complete sentences to explain your answer.

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element