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Explain the trend in the boiling temperatures of the elements on descending group 7, from fluorine to iodine.

Understanding the question:

The process of boiling is heating the mixture until the liquid turns into gas. This process requires breaking intermolecular forces (interactions between molecule...

Answered by Berna Y. • Chemistry tutor

13138 Views

How do you factorize a quadratic equation which has a coefficient of x^2 other than 1?

Factorise 6x²+ x - 2 = 0

Firstly, multiply the coefficient of x² by the last number:

6 x -2 = -12

Answered by Aleezeh A. • Maths tutor

2614 Views

What is the difference between an opinion and an argument, and which one helps us better understand the past?

An opinion is usually defined as a belief or view held by an individual. It can be formed by or based upon virtually anything, and an opinion is not necessarily based upon what is true, accurate or inform...

Answered by Joe H. • History tutor

64526 Views

Describe the structure of a protein.

Proteins are large biomolecules which play a key role in many of the body's proccesses. Their structure can be broken down into 4 main domains. The primary structure consists of a unique sequence o...

Answered by Tutor75735 D. • Biology tutor

2302 Views

Express the polynomial x^3+x^2-14x-24 as a product of three linear factors.

Firstly, use the factor theorem to determine one factor. Substitute factors of 24 into the equation, beginning at plus or minus 1 and then increasing. The first factor found will be -2, therefore (x+2) is...

Answered by Scarlet W. • Maths tutor

14535 Views