All categories

2 years ago

Explain why aluminum does not react with potassium nitrate (KNO3) although it reacts with copper nitrate

Chemistry

1 answer:

Ratling [72]2 years ago

7 0

Answer:

Potassium is more reactive than aluminium, so no reaction takes place. But aluminium is more reactive than copper, so it replaces the copper in copper nitrate

<h3>Explanation:</h3>

More reactive metal compound + less reactive metal

-> no reaction

However

Less reactive metal compound + more reactive metal

-> more reactive metal compound + less reactive metal

This is called substitution reaction where the more reactive metal replaces the less reactive metal in the compound.

You might be interested in

Which of the following are not single-displacement reactions?

Goshia [24]

Answer:

$\boxed{\text{B and C }}$

Explanation:

In a single-displacement reaction, one element exchanges partners with another element in a compound.

$\textbf{A. } \rm Fe + 2HCl \longrightarrow FeCl_2 + H_2$

This is a single-displacement reaction, because the element Fe exchanges partners with H in HCl.

$\textbf{B. } \rm KOH + HNO_3 \longrightarrow H_2O + KNO_3$

This is not a single-displacement reaction, because it is a reaction between two compounds.

This is a double displacement reaction in which the K⁺ and H⁺ cations change partners with the anions.

$\textbf{C. } \rm Na_2S + 2HCl \longrightarrow 2NaCl + H_2S$

This is not a single-displacement reaction. It is another double displacement reaction, in which the Na⁺ and H⁺ cations change partners with the anions.

$\textbf{D. } \rm Ca + 2HOH \longrightarrow Ca(OH)_2 + H_2$

This is a single-displacement reaction, because the element Ca exchanges partners with H in H₂O.

$\boxed{\textbf{B and C }}$ are not single-displacement reactions.

6 0

2 years ago

1. List five acids and five bases we come across in our day-to-day activities under the correct heading.

shutvik [7]

Answer:

look at the picture

Explanation:

3 0

1 year ago

Flames are the heat and light energy that is release when the chemical bonds in a substance are broken. What provides the chemic

Tpy6a [65]

Answer is C:Wax Or B:Heat

8 0

3 years ago

Read 2 more answers

Who earned the nobel prize twice for their work with radioactivity

lord [1]

Answer:

Marie Curie, née Maria Salomea Skłodowska, (born November 7, 1867, Warsaw, Congress Kingdom of Poland, Russian Empire—died July 4, 1934, near Sallanches, France), Polish-born French physicist, famous for her work on radioactivity and twice a winner of the Nobel Prize.

Explanation:

pls give brainlest almost lvled up.

7 0

2 years ago

Read 2 more answers

Air is made up of about 21% oxygen and 78% nitrogen.

gladu [14]

I believe its A "Air is made up of about 21% oxygen and 78% nitrogen. In this solution, oxygen is the solute and nitrogen is the solvent.

6 0

3 years ago