Top answers

Why is this reaction an Endothermic reaction?

bond making is exothermic, bond breaking is endothermic. It takes more energy to break the bonds than the energy released in making new bonds
JM
Answered by Jigi M. • Chemistry tutor
3599 Views

How does sweat cool the body down? (2 marks)

Water in the sweat evaporates due to the body temperature of the organism - This takes heat with it
JM
Answered by Jigi M. • Biology tutor
9270 Views

What is Pythagoras' Theorem and how do you use it?

Pythagoras' Theorem: a 2 + b 2 = c 2 where a, b, c relate to the sides of a right-angled triangle, and c is the hypoteneuse. Use the equation to find the length one side if you only know the lengths of two o...
HS
Answered by Hermione S. • Maths tutor
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Why do some verbs take 'avoir' as the auxiliary whilst others take 'être'?

The vast majority of verbs use 'avoir' as an auxiliary. However a few take être. These verbs are mostly verbs which communicate a state or motion. Just remember MRS VANDERTRAMP Monter Retourner Sortir Venir ...
JK
Answered by Joseph K. • French tutor
3901 Views

Describe how the forces change on a parachutist while they fall.

It is important to remember that there are four main concepts to keep in mind while thinking about the parachutist. To remember them, it might be helpful to use the acronym GADE: Gravity, Acceleration, Drag,...
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Answered by Nicholas D. • Physics tutor
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