Question

4. In a combination reaction how many products are formed?
a. Only two
b. Only one or two
C. Only one
d. Number cannot be specified
5. What happens in a displacement reaction?
a. A more reactive element replaces a less reactive element
b. An element replaces one which is equally reactive
C. Any element can replace any other element
d. An element with less reactivity replaces element with more reactivity​

Answer 1

Answer:

HEY !

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4. One only

5. A more reactive element replaces a less reactive element.

Displacement reactions occur when a metal from the electrochemical series is mixed with the ions of a metal lower down in the electrochemical series. The atoms of the more reactive metal push their electrons on to ions of the less reactive metal. An example can be seen below.

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