Chemical Reactions Quiz: HCl and NaOH Reaction

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What is the name of the reaction described in the text involving Fe2O3 and Al?

Oxidation-reduction reaction

Decomposition reaction

Displacement reaction (correct)

Combination reaction

When copper powder is heated, what is the visible change that takes place?

Formation of copper oxide (correct)

Formation of copper chloride

Formation of copper nitrate

Formation of copper sulfate

Which type of reaction is the process of white washing walls with calcium hydroxide?

Neutralization reaction (correct)

Precipitation reaction

Combustion reaction

Decomposition reaction

In the thermite reaction, what is the role of Al?

Reducing agent Signup and view all the answers

What is the product formed when CuO reacts with hydrogen gas?

Cu Signup and view all the answers

What color does a brown residue indicate in a chemical reaction?

Reduction is occurring Signup and view all the answers

What type of reaction occurs when zinc reacts with silver nitrate?

Single displacement reaction Signup and view all the answers

In the reaction between potassium iodide and lead nitrate, what is the product potassium nitrate classified as?

Product Signup and view all the answers

What observation was made about the reaction discussed in question 20?

Highly exothermic Signup and view all the answers

When solid A and solid B are mixed without heating, what happens?

No reaction occurs Signup and view all the answers

Based on the information given, which of the following statements about the reaction mentioned is most likely correct?

It is a redox reaction Signup and view all the answers

In the reaction involving iron (III) oxide and aluminum powder, which product settles down in the molten state?

Iron metal Signup and view all the answers

Which type of chemical reaction occurs when sodium hydroxide reacts with HCl to form sodium chloride and water?

Double displacement reaction Signup and view all the answers

What happens when an iron object is left in moist air for a few days or weeks?

It undergoes an oxidation reaction forming rust Signup and view all the answers

Which type of chemical reaction involves a more reactive metal displacing a less reactive metal from its salt solution?

Displacement reaction Signup and view all the answers

In the context of chemical reactions, what does the term 'balance the chemical equation' refer to?

Ensuring that the number of atoms of each element is the same on both sides of the equation Signup and view all the answers

What is the balanced chemical equation for the reaction between barium chloride and potassium sulfate?

BaCl2 + K2SO4 -> BaSO4 + 2KCl Signup and view all the answers

What happens when natural gas burns and combines with oxygen?

Carbon dioxide and water are produced Signup and view all the answers