Part 1: name the type of chemical reaction that occurs when calcium hydroxide (ca(oh)2) reacts with nitric acid (hno3). part 2: explain why zinc (zn) would react with lead nitrate (pbno3) but not with calcium chloride (cacl2).

For 1: The correct answer is Neutralization reaction.

For 2: This is because Zinc is more reactive than lead and less reactive than Calcium.

Explanation:

The reaction which takes place between an acid and a base to form a salt and water is known as neutralization reaction.

In the given question:

is a base and is an acid. So, the reaction between them is a type of neutralization reaction. Reaction between calcium hydroxide and nitric acid is given by the equation:

The reaction between zinc and lead nitrate happens because zinc is more reactive than lead. This reaction is known as single displacement reaction.

Single displacement reactions are the reactions in which more reactive metal displaces a less reactive metal from its chemical reaction. This is explained on the basis of the reactivity series. The metal which lies above in the reactivity series is more reactive than the metal which lies below in the series.

Here, C is more reactive than A.

For the reaction of zinc and led nitrate:

Zinc is more reactive than lead and therefore it displaces lead in the given chemical reaction.

For the reaction of zinc and calcium chloride:

Zinc is less reactive than calcium and therefore it does not displaces calcium in the given chemical reaction.

neutrons are in the middle of the atom and the electrons, which are much smaller.

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.