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a) Describe the nature of ionic bonding. b) State the electron configuration of the Ca (II) ion. c) Outlie why solid calcium is a good conductor of electricity.

a) Ionic bonding is the electrostatic attraction between oppositely charged ions (+ and -). [1]b) 1s²2s²2p⁶3s²3p⁶ [1]c) Metallic bonding occurs throu...

Answered by Hristo S. • Chemistry tutor

3083 Views

Where does photosynthesis take place?

It occurs in plant cells, in the chloroplasts, found in the mesophyll layer. Chloroplasts contain chlorophyll necessary to absorb light.

Answered by Lorenzo R. • Biology tutor

4904 Views

Let f(x) = px^2 + qx - 4p, where p is different than 0. Showing your working, find the number of roots for f(x) = 0.

Δ = b² - 4ac = q² - 4p (-4p) = q² + 16p²p different than 0 => 16p² greater than 0 onlyq² greater or equal to 0q² + ...

Answered by Hristo S. • Maths tutor

4988 Views

Explain the roles of specific enzymes in prokaryote DNA replication. [7 marks]

DNA replication is the same in eukaryotes and prokaryotes; the question just emphasizes that the process depends on enzymes and their functions need to be explained.DNA gyrase (o...

Answered by Hristo S. • Biology tutor

7306 Views

Why do people say assault when it can mean assault and battery?

Firstly, we are dealing here with offences against the person. Assault actually splits into 2 categories - a common assault and a battery. These both come under common law. This is important, because it m...

Answered by Emily W. • Law tutor

2667 Views