Q1.) The reaction that you will be performing in this experiment is an example of an oxidation–reduction (redox) reaction. Mg(s)+2HCl(aq)⟶Mg2+(aq)+2Cl−(aq)+H2(g)Mg(s)+2HCl(aq)⟶Mg2+(aq)+2Cl−(aq)+H2(g) What species is being oxidized? Group of answer choices Mg is oxidized HCl is oxidized Mg2+ is oxidized Cl- is oxidized H2 is oxidized part b. The reaction that you will be performing in this experiment is an example of an oxidation– reduction reaction. Mg(s)+2HCl(aq)⟶Mg2+(aq)+2Cl−(aq)+H2(g)Mg(s)+2HCl(aq)⟶Mg2+(aq)+2Cl−(aq)+H2(g) What species is being reduced? Group of answer choices Mg is reduced HCl is reduced Mg2+ is reduced Cl- is reduced H2 is reduced
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Q1.) The reaction that you will be performing in this experiment is an example of an oxidation–reduction (redox) reaction.
Mg(s)+2HCl(aq)⟶Mg2+(aq)+2Cl−(aq)+H2(g)Mg(s)+2HCl(aq)⟶Mg2+(aq)+2Cl−(aq)+H2(g)
What species is being oxidized?
Mg2+ is oxidized
Cl- is oxidized
H2 is oxidized
part b. The reaction that you will be performing in this experiment is an example of an
Mg(s)+2HCl(aq)⟶Mg2+(aq)+2Cl−(aq)+H2(g)Mg(s)+2HCl(aq)⟶Mg2+(aq)+2Cl−(aq)+H2(g)
What species is being reduced?
Mg2+ is reduced
Cl- is reduced
H2 is reduced
Q.2) In the experiment, you wrap a piece of copper wire around your magnesium strip to suspend the magnesium inside the eudiometer. Why is copper wire a good choice for this task?
Q.4)Using the data provided in Table 3 in the handout (also provided below), calculate the vapor pressure of water at 21.0 °C.
Table 3: Vapor pressure of water at various temperatures| T (˚C) | P (mmHg) | T (˚C) | P (mmHg) | T (˚C) | P (mmHg) |
|---|---|---|---|---|---|
| 0 | 4.58 | 16 | 13.63 | 26 | 25.21 |
| 5 | 6.54 | 18 | 15.48 | 28 | 28.35 |
| 10 | 9.21 | 20 | 17.54 | 30 | 31.82 |
| 12 | 10.52 | 22 | 19.83 | 40 | 55.3 |
| 14 | 11.99 | 24 | 22.38 | 50 | 92.5 |
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