Consider four beakers labeled A, B, C, and D, each containing an aqueous solution and a solid piece of metal. Identity the beake

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Consider four beakers labeled A, B, C, and D, each containing an aqueous solution and a solid piece of metal. Identity the beake

rs in which a chemical reaction will occur and those in which no reaction will occur. Drag each item to the correct bin.
1. Mn(s) Ca(NO3)2(aq)
2. KOH(aq) Fe(s)
3. Pt(NO3)2(aq) Cu(s)
4. Cr(s) H2SO4(aq)
A. Reaction
B. Non-reaction
Consider the following data for five hypothetical element: Q, W, X, Y, and Z. Rank the elements from most reactive to least reactive.
Combination Observation of reaction
Q + W+ Reaction occurs
X + Z+ No reaction
W + Z+ Reaction occurs
Q+ + Y Reaction occurs
Place the element symbol from most to least reactive.
1. Q
2. W
3. X
4. Y
5. Z
A. Most reactive
B. Least reactive
Use the following reactions to arrange the elements A, B, C, and D in order of their rodox reactivity from most reactive to least reactive. Rank from most reactive to least reactive.
1. A + D+ righ tarrow A+ + D
2. C+ + D righ tarrow C + D+
3. B+ + D righ tarrow B + D+
4. B + C+ righ tarrow B+ + C
A. Most reactive
B. Least reactive

Chemistry

1 answer:

castortr0y [3K] · Answer 1 · 2026-03-10T18:32:13+03:00

Answer:

A Reaction

3. Pt(NO₃)₂(aq) + Cu(s)

4. Cr(s) + H₂SO₄(aq)

B Non Reaction

1. Mn(s) + Ca(NO₃)₂(aq)

2. KOH(aq) + Fe(s)

Y > Q > W > Z > X

Explanation:

The first task is determining if a reaction is set to take place according to the chemical equations outlined below.

1. Mn(s) + Ca(NO₃)₂(aq)

2. KOH(aq) + Fe(s)

3. Pt(NO₃)₂(aq) + Cu(s)

4. Cr(s) + H₂SO₄(aq)

Reactivity differs among elements; thus, they can be ordered by their reactivity levels.

1. Mn(s) + Ca(NO₃)₂(aq)

This reaction will not happen as Mn cannot replace Ca in its compound. A more reactive element typically displaces a less reactive one.

2. KOH(aq) + Fe(s)

The reaction is non-existent because Iron is less reactive compared to potassium, thus cannot replace it.

3. Pt(NO₃)₂(aq) + Cu(s)

Copper's reactivity exceeds that of platinum, allowing it to easily displace platinum. Therefore, this reaction will certainly occur.

4. Cr(s) + H₂SO₄(aq)

Chromium's position in the reactivity series is higher than that of hydrogen, enabling it to displace hydrogen in this compound. Consequently, this reaction will take place.

Based on the reactions

Q + W + Reaction occurs

Since a reaction occurs, element Q is more reactive, successfully displacing element W from the compound.

X + Z + No reaction

No reaction takes place since element X is less reactive than Z, and thus cannot displace Z.

W + Z + Reaction occurs

Here, element W is more reactive than Z, enabling it to displace Z from the compound.

Q + Y + Reaction occurs

In this instance, element Y is more reactive than Q, successfully displacing Q from its compound.

This results in the overall reactivity ranking as Y > Q > W > Z > X