A double replacement reaction is a reaction in which one element replaces a similar element within a compound. (2 points) True
False

Q1: Sodium metal reacts with water to produce hydrogen gas.

What best describes this reaction?

A: A single replacement reaction takes place because sodium is more reactive than hydrogen.

Q2:When Pb and AlCl3 react together, lead (Pb) can replace aluminum (Al) in the compound because lead is lower on the activity series.

A: False

Q3:When HNO3 and Au are mixed together, what do you expect to happen, and why?

A:No reaction, because Au is lower on the activity series and cannot replace H

Q4:Which of the following is a double replacement reaction?

A:Ca(OH)2 + H2SO4 → CaSO4 + 2H2O

Q5:The table shows the nature of reactants and products formed in a certain type of chemical reaction.

Nature of Reactants and Products

ReactantsProducts

Nonmetal + Ionic compoundNonmetal + Ionic compound

Which of the following is true about the type of chemical reaction?

A:It is a single replacement reaction, and the anions in the two ionic compounds are different.

Q6:A double replacement reaction is a reaction in which one element replaces a similar element within a compound.

A: False

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