Scenario In an investigation, lab groups combine two compounds, as shown below. Based on the data collected from all lab groups, you realize that one group’s data was not possible. Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g) External Data Group Number Mass of Mg (g) Mass of HCl (g) Mass of MgCl2 (g) 1 5 15 20 2 5 15 17 3 5 15 21 4 5 15 20 5 5 15 19
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.
Scenario
In an investigation, lab groups combine two compounds, as shown below. Based on the data collected from all lab groups, you realize that one group’s data was not possible.
Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g)
External Data
|
Group Number |
Mass of Mg (g) |
Mass of HCl (g) |
Mass of MgCl2 (g) |
|
1 |
5 |
15 |
20 |
|
2 |
5 |
15 |
17 |
|
3 |
5 |
15 |
21 |
|
4 |
5 |
15 |
20 |
|
5 |
5 |
15 |
19 |
Prompt
Make a claim about which group’s data is not possible. Use evidence and scientific reasoning to support your claim. Include a rebuttal in your answer.
Claim (1 sentence): ______________________________________________________________.
Evidence 1 (2-3 sentences): ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Reasoning (1 sentence):
_______________________________________________________________________________________________________________________________________________________________.
Rebuttal (Justify the other groups’ data that are correct):
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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