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Express 2 ln(3) + ln(11) as a single natural logarithm

To simplify this equation we need to understand the rules of logarithm equations. When we add two natural logs (ln) together, we must actually multiply the contents of the brackets. For example:ln(5) + ln...

JK
Answered by Jordan K. Maths tutor
8533 Views

Factorise a^2 + a - 30

This is a quadratic equation in the form ax2+bx+c. As the three terms don't have a common factor we cannot factorise this into one bracket, instead we will factorise it into two. In order to do...

IG
Answered by Isabella G. Maths tutor
3919 Views

why does graphene conduct electricity?

usually covalent structures cannot conduct electricity but graphene is one of the exceptions and this is due to its structure and bonding. It is a giant covalent 2D molecule, hexagonal in shape with 3 cov...

CN
23812 Views

Factorise x^2+3x-4

Answer is:(x-1)(x+4)

TA
Answered by Tahmina A. Maths tutor
4737 Views

State the reagents and conditions for the formation of an aldehyde, starting from a primary-alcohol.

Answer: Heat with acidified potassium dichromate (IV), distilling off the aldehyde as it forms.
Explanation: To form an aldehyde from an alcohol the alcohol group must be oxidised. To do this we use ...

TO
Answered by Tom O. Chemistry tutor
4145 Views

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