two batches of calcium oxide from calcium and oxygen. Batch A weighs 36.0 grams and is tested and has 25.7 grams of calcium in it. Batch B weighs 87.0 grams. According to the Law of Definite Proportions, how many grams of calcium element is in batch B

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.

14 days is the half-life of phosphorus-32

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.