Top answers

How does a catalyst and increasing temperature affect the rate of reaction?

For a reaction to occur between particles (reactants) they must overcome an energy barrier. This is called the activation energy. A catalyst provides an alternative pathway for the reaction, that has a lower...
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Answered by Jacob D. • Chemistry tutor
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if you have an isosceles triangle, one angle of 140 degrees what are the other two?

180-140=40 40/2 =20 each other angle is 20 degrees
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Answered by David H. • Maths tutor
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differentiate 4x^3 + 3x

12x^2 +3
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Answered by David H. • Maths tutor
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Describe the landforms associated with destructive plate margins and explain their formation. (8 marks)

Destructive plate margins are those where two plates are moving towards one another. In cases where an oceanic plate and a continental plate converge, the denser oceanic plate will be forced beneath the cont...
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Answered by Clare B. • Geography tutor
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What is the 3rd person plural conjugation of Hablar in the present tense?

What is the 3rd person plural conjugation of Hablar in the present tense? HABLAR Forming the present tense: Hablar - AR Habl + ending Personal Pronouns: I - Yo (First person sing.) You - Tú (Second person si...
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Answered by Eloise H. • Spanish tutor
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