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Which compound is a member of the same homologous series as 1-chloropropane? A. 1-chloropropene B. 1-chlorobutane C. 1-bromopropane D. 1,1-dichloropropane

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 each inco...
JP
Answered by Joe P. • Chemistry tutor
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What is the atomic number of an atom and How many electrons are there in an atom of Nitrogen when it has an atomic number of 7?

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
TA
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What is the end point in a titration?

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 indica...
AY
Answered by Ashley Y. • Chemistry tutor
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What is the Lowry and Bronsted definition of acids and bases?

Acids are defined as proton donors and bases are defined as proton acceptors.
AY
Answered by Ashley Y. • Chemistry tutor
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Why do ionisation energies typically increase upon going across a period yet decrease upon going down a group?

‘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 de...
LM
Answered by Lewis M. • Chemistry tutor
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