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It's B. Chlorobutane

In explaining this answer, I'd test the students knowledge of what a homologous series is. And then we'd draw out the alternative answers and I'd ask the student to explain why...

The atomic number is equal to the number of protons in an atom. The number of protons in an atom is equal to the number of electrons in an atom so the number of electrons in nitrogen is 7 electrons

During a titration, an acid is added drop by drop into an alkaline solution and the pH decreases. End point is the point at which the alkaline solution has become neutral, that is pH 7. You can use an ind...

Acids are defined as proton donors and bases are defined as proton acceptors.

‘Ionisation energy’ is the term used to describe the amount of energy it takes to remove an electron from an atom to form a positively charged ion. It is usually represented by the unit kJ/mol, meaning it...