Over a million students use our free study notes to help them with their homework
Covalent bond (sharing a pair of elections between two non metal atoms)O = C = O
As carbon is in group 4 of the periodic table it has 4 electrons that it can share with other atoms to form covalent bonds. In the graphite structure, only 3 of these electrons are used for forming covale...
Answer: HBr, HCl, HFFirstly, we must understand what is meant by "acid strength". Simply put, it's the concentration of "free" hydrogen ions (H+) in solution. Acids dissociate (...
Given the equation for the reaction:CuO(s) + H2SO4(aq)-------> CuSO4(aq) + H2O(l) and the relative formula mass of the copper sulfate crystals Mr=249.5 and the relative atomic masses of O=16 and Cu=63....
Use the equation:Moles = Mass ÷ Relative massFor example: How many moles are there in 10g of CaCO3 ? ( to 3 significant figures)Find the relative mass of CaCO...
←
103
104
105
106
107
→
Internet Safety
Payment Security
Cyber
Essentials
