grade 9 chemistry program

- This is a representative list of topics covered in our Grade 9 Chemistry program - however all programs will be customized for the individual studen..

- This is a representative list of topics covered in our Grade 10 Chemistry program - however all programs will be customized for the individual studen..

- This is a representative list of topics covered in our Grade 12 Chemistry program - however all programs will be customized for the individual studen..

Calculate the volume occupied by 3.4 g of ammonia at STP. (N=14, H..

All the elements of the group exhibit allotropy. For e.g., oxygen exists as O 2 and O 3 (ozone). Sulphur exists in a number of allotropic forms such as rhombic, monoclinic, plastic sulphur. All these allotropic forms of sulphur are non-metallic. Selenium has two common forms-red and grey. Simila..

Half-life period of a nuclide The time taken to reduce the number of nuclei to one half the origina..

There are seven periods in the periodic table and each period starts with a different principal quantum number. The first period corresponding to 'n' = 1 consists of only two elements hydrogen (1s 1 ) and helium (1s 2 ). This is because the first energy shell has only one orbital (1s), which can a..

The above order of stability occurs because of greater number of contributing structures, which cause large delocalisation and hence stabilises the alkene. For instance, alkene-I has 12 a - hydrogens while alkene-II has nine a - hydrogen atoms. Therefore, there will be larger hyperconjuga..