It would be 23, s choice C.
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A. Using a whole solid in the reactants
Answer:
Two reactants produce two products
Explanation:
In single replacement reaction, an ionic specie is replaced by another specie according to the following general scheme
Z + XY → ZY + X
Here Z can be a metal or a non-metal. So, this removes the first given option. Also, It can be seen from the general reaction that the product is not single deducting the second option. The last option states that, "any metal replaced any other metal", this is not necessarily true. For the replacement of metal the other metal should be more reactive.
So, the only true statement about single-replacement reaction is, "two reactants produce two products"
I think the answer is rock fragments and minerals (3)
