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Butane (C4H10) is an alkane. Complete the displayed structure of butane.

H H H H

H - C - C - C - C - H

H H H H

Answered by Joseph M. • Chemistry tutor

8876 Views

Why are carbohydrates important in an athlete’s diet and give two different forms of carbohydrates and the difference between them?

Carbohydrates are an important part of an athlete’s diet because these foods provide instant energy which is required before a workout. Carbohydrates provide the body fuel that makes the body’s engine run...

Answered by Imran M. • Physical Education tutor

2814 Views

What is the difference between the past tenses (perfect, imperfect and pluperfect)?

The perfect tense (simple past) is used to describe a completed action. It is formed by an auxiliary verb (either être or avoir) and a past participle.

The imperfect is used to describe an action ...

Answered by Verity S. • French tutor

6211 Views

What is the subjunctive and when is it used?

The subjunctive is a “mood” it demonstrates possibility and is used in certain grammatical structures. There is no pattern to these - you just have to learn them!

The most common are: purpose clau...

Answered by Verity S. • Latin tutor

2410 Views