You may use any of your notes or resources to take this quiz, just not another person! Good Luck
Take out a periodic table to use for this quiz. You can use image above if you need to.
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The picture above shows the reaction that occurs when heated magnesium (Mg) metal is placed in a test tube containing chlorine gas (Cl2).The atomic structure of these elements allows scientists to predict how elements react and the outcomes of these reactions. The periodic table, shown helps scientists make these predictions.
A few classmates share their explanations for the outcome of this reaction in Figure B. Finally, a classmate creates the following model outlining the reaction between Mg and O2
Finally, a classmate creates the following model outlining the reaction between Mg and O2.
Use the image and information on the left to answer the questions below.
Question 1
1.
Question 2
2.
Explain your reasoning for your response to question 1.
Question 3
3.
Question 4
4.
Question 5
5.
Explain how you figured out the answer to question 4.
Question 6
6.
Question 7
7.
Question 8
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Question 9
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Question 10
10.
Question 11
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Question 12
12.
Explain your reasoning for your response in question 11.
Question 13
13.
Refer to the student explanations in figure B on the left. Identify one flaw in Thad’s reasoning and how it can be improved by including the octet ruel and electrostatic attractions to the explanation?
Write a revised response below.
Which element below would you expect to react with Mg in a similar reaction as Cl2 in the picture?
Carbon (C)
Calcium (Ca)
Argon (Ar)
Fluorine (F)
Hydrogen (H) can act as a metal or a nonmetal. It forms either a +1 or -1 charge depending on which element it is reacting with.
Use your knowledge of ionic bonding to determine which charge H would use when it bonds with a metal such as Mg
-1
+1
What is the correct chemical equation to represent the reaction between Magnesium (Mg) and Chlorine gas (Cl2) in the reaction shown?
Hint: Find the product when Mg and Cl combine 1st then balance the reaction
Mg + 2Cl2 → MgCl2
Mg + Cl2 → MgCl
Mg + Cl2 → MgCl2
2Mg + Cl2 → 2MgCl
Which of the following are the correct coefficients for the reaction given below?
_____H2 + ____CaF2 --> ____HF + _____ Ca
Draw a model of this chemical reaction
Show your work to receive credit for this question. You can take a picture or use the drawing tools.
1, 2, 1, 1
1, 2, 2, 2
1, 1, 2, 1
1, 2, 2, 1
A student measured the mass of magnesium ribbon before lighting it on fire. The student took the mass after the magnesium fully reacted and formed magnesium oxide.
Mass of magnesium: 1.3g
Mass of magnesium oxide: 2.1g
Use the law of conservation of mass to determine the mass of oxygen that reacted with magnesium?
1.3 g
3.4 g
2.1 g
0.8 g
Aluminum (Al) is another metal that also reacts with chlorine gas (Cl2). Considering the position of Al and Mg on the periodic table and their differences in atomic structure, which stable compound would form when Al reacts withCl.
Show your work for credit for this question. You can draw in notebook and submit or you can use the drawing tools.
AlCl
AlCl2
Al2Cl
Al3Cl
AlCl3
Refer to figure B on the left. Moira’s explanation indicates she has which of the following misconceptions? (Which is NOT true when compounds form)
Elements have different numbers of valence electrons
Bonds are a physical substance that hold atoms together
Compounds contain bonded atoms
Electron behavior determines how atoms react
Refer to figure C on the left. This reaction includes magnesium (Mg) similarly to the picture, but uses oxygen gas (O2) instead of chlorine gas (Cl2). How does changing the chlorine to oxygen change the outcome of this reaction?
The bonds in the compound formed with oxygen will be more stable than the compound formed with chlorine.B
It changes whether the total number of electrons are shared or transferred when the product is formed.
Oxygen will take electrons from magnesium, while chlorine will give electrons to magnesium.A
The number of valence electrons for oxygen and chlorine are different, so the compounds formed require a different number of atoms of each to be stable.
Refer to Figure C on the left. Which of the following correctly addresses the flaw (if any) in the products side of the model?
The product is not a stable compound
There are no flaws in this model
The number of valence electrons for each atom of O is incorrect
