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What is the difference between the perfect and the imperfect tense and when is it appropriate to use them?

In French, there are two primary tenses which are used to express something that happened in the past. These are the perfect and imperfect tense, referred to in French as le passé composé...

EM
Answered by Elliott M. French tutor
1690 Views

What is the difference between exothermic and endothermic?

Exothermic and Endothermic are opposite reactions. All reactions need energy to be put in to start them off, this is called the activation energy, but th...

Answered by Chemistry tutor
1939 Views

Why does the structure of lithium oxide allow it to conduct electricity under certain conditions?

Lithium oxide has the formula Li2O. It has an ionic structure as it is formed from a metal and a non-metal. It has lithium ions with a +1 charge, as lithium is found in Group 1 of the periodic ...

AI
Answered by Amy I. Chemistry tutor
9757 Views

Simplify fully (3x^2-8x-3)/(2x^2-6x)

First I would look for common factors in either the numerator or the denominator. The denominator has the common factor of (2x) so i would factorise it by 2x in order to give (3x2-8x-3)/(2x)(x-...

JA
Answered by James A. Maths tutor
2805 Views

Evaluate the Strange Situation as a method for investigating types of attachment.

Ainsworth devised an observation called the strange situation to measure types of attachment. The Strange Situation involves placing a child in a controlled environment, whereby they would be observed und...

MH
Answered by Maryan H. Psychology tutor
27087 Views

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