12519884
Description
Quiz by First Name, updated more than 1 year ago
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Created by First Name
about 6 years ago
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Question 1
Question
What is an ion?
Answer
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An ion is a atom that has gained or lost an electron
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An ion is a substance that can displace all other substances
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An ion is an element
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An ion is a group of atoms that is joined with a covalent bond
Question 2
Question
What is a covalent bond?
Answer
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A covalent bond is what an ion formes after it gains an electron
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A covalent bond is a acadic solution
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A covalent bond is a bond formed between two or more atoms when they share a pair of electrons
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A covalent bond is a substance that can only be displaced
Question 3
Question
What is a displacement reaction?
Answer
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Its when one solution take the place of another solution
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It is when one ion takess the place of another ion in a compound
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Its when one or more atoms are connected bt a covalent biond
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Its when a compound gets its place taken by a molecule
Question 4
Question
When X Ion can displace Z ion. But X cannot displace Yi on. What is the most reactive ion.
Answer
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X
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Y
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Z
Question 5
Question
Why dose a catalyst make a reaction faster?
Answer
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It lowers the activation energy and this makes each collision more likely to succeed in its reaction increcing the reaction rate.
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It highers the activation energy making the reaction temperature higher and so making the atoms move more
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It causes the colisions happening to become less freuent and this then makes it more likly that it reacts
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