Chemistry, 26.06.2019 09:00 paytonhuff8580

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).

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Answer from: mariap3504

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:

For 1:

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

$HX+BOH\rightarrow BX+H_2O$

In the given question:

Ca(OH)_2 is a base and HNO_3 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:

$Ca(OH)_2(aq.)+2HNO_3(aq.)\rightarrow Ca(NO_3)_2(s)+2H_2O$

For 2:

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.

$AB+C\rightarrow CB+A$

Here, C is more reactive than A.

For the reaction of zinc and led nitrate:

$Zn(s)+Pb(NO_3)_2(aq.)\rightarrow Zn(NO_3)_2(aq.)+Pb(s)$

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

For the reaction of zinc and calcium chloride:

$Zn+CaCl_2\rightarrow \text{No reaction}$

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

Part 1: name the type of chemical reaction that occurs when calcium hydroxide (ca(oh)2) reacts with

Answer from: Quest

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa

Answer from: Quest

Mass is the amount of matter in an object. weight is the measurement of the pull of gravity on an object. say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165) now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon. however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant. in conclusion it is possible for your weight to change as your mass remains constant.

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Part 1: name the type of chemical reaction that occurs when calcium hydroxide (ca(oh)2) reacts with...

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