Top answers

Explain what an ionic bond is and how the charges and radii can affect the melting and boiling points of the ionic compounds

An ionic bond is the electrostatic attraction between two oppositely charged ions to form an ionic compound. The greater the charge of an ion the stronger the ionic bond as the attraction between the positiv...
CH
Answered by Charles H. • Chemistry tutor
15399 Views

What should I be doing to prepare for my multiple mini interview (MMI)?

This is a great question, there are a few things you need to consider for your MMI:Presentation is key, make sure you're dressed smartly and your well groomed. You want to give a professional impression from...
CH
1377 Views

The equation of line L1 is y = 3x-2 and the equation of line L2 is 3y-9x+5 = 0. Show that these two lines are parallel.

For two lines to be proven as parallel they must have the same gradient. The second equation needs to therefore be rearranged into y = mx + c format to see if this is the case.3y-9x+5 = 0 (subtract the 5)3y ...
FH
Answered by Frankie H. • Maths tutor
3557 Views

Solve for x when x2+16x+28=0

(x+14)(x+2)=0 x=-14, x=-2
HR
Answered by Harikalan R. • Maths tutor
2732 Views

Integrate (3x^2+2x^-1) with respect to x in the range of K to 3 and explain why K cannot be 0

Integrated: [x^3+2ln(x)] Sub in 3 and K: [3^3+2ln(3)-k^3-2ln(k)]Simplify: 27-K+2ln(3/K)—> K cannot = 0 otherwise ln(3/k) would have an undefined value, as would ln(k)
DH
Answered by Daniel H. • Maths tutor
3121 Views