12519884
Descripción
Test por First Name, actualizado hace más de 1 año
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Creado por First Name
hace más de 6 años
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Pregunta 1
Pregunta
What is an ion?
Respuesta
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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
Pregunta 2
Pregunta
What is a covalent bond?
Respuesta
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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
Pregunta 3
Pregunta
What is a displacement reaction?
Respuesta
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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
Pregunta 4
Pregunta
When X Ion can displace Z ion. But X cannot displace Yi on. What is the most reactive ion.
Respuesta
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X
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Y
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Z
Pregunta 5
Pregunta
Why dose a catalyst make a reaction faster?
Respuesta
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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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