Identify name by the following electron configuration of a specific element. How many valence electrons does this element have? 1s 2s 2p°3s²3p°3di®4s²4p5

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Chapter1: Chemical Foundations
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Identify name by the following electron configuration of a specific element.
How many valence electrons does this element have?
1s²2s²2p®3s?3p®3d®4s²4p3
This question relates to the Bohr Model:
Are the electrons in shells that are closer to the nucleus, higher in energy? Or lower in energy? Explain.
Use the sketch of the incomplete Lewis structure shown below to answer the following.
Put in the remaining valence electrons and complete the Lewis dot diagram.
Comment on the electron group geometry and the molecular geometry around the central atoms C and N. Explain how you decided.
H-C
N - 0
0-2
I -U-IT
Transcribed Image Text:Identify name by the following electron configuration of a specific element. How many valence electrons does this element have? 1s²2s²2p®3s?3p®3d®4s²4p3 This question relates to the Bohr Model: Are the electrons in shells that are closer to the nucleus, higher in energy? Or lower in energy? Explain. Use the sketch of the incomplete Lewis structure shown below to answer the following. Put in the remaining valence electrons and complete the Lewis dot diagram. Comment on the electron group geometry and the molecular geometry around the central atoms C and N. Explain how you decided. H-C N - 0 0-2 I -U-IT
Aqueous ammonium sulfate reacts with aqueous lead(II) nitrate.
Predict the products of the reaction, and write a complete and balanced molecular equation. Include phase labels.
Write the complete ionic and net-ionic equations.
If the reaction is determined to be a 'no reaction', explain using the complete ionic equation why that is.
Consider the equation of aluminum with sulfuric acid as shown below:
2A1 (s) + 3H2SO4 (aq) → Al2(SO4)3 (aq) + 3H2 (g)
a) Classify the reaction.
b) How many moles of H2S04 are required to completely react with 8.00 mole Al?
c) How many grams of H, gas will be formed if 5.15 grams of aluminum reacts with excess sulfuric acid?
d) If we begin with 215 grams of aluminum and 275 grams of sulfuric acid, what would be the aluminum sulfate theoretical yield of
the reaction?
e) Calculate number of molecules of aluminum sulfate from the theoretical yield obtained from part d).
Use units, significant figures correctly. For very Large or smalL numbers, be sure to express responses in scientific notation. Show your work neatly.
Transcribed Image Text:Aqueous ammonium sulfate reacts with aqueous lead(II) nitrate. Predict the products of the reaction, and write a complete and balanced molecular equation. Include phase labels. Write the complete ionic and net-ionic equations. If the reaction is determined to be a 'no reaction', explain using the complete ionic equation why that is. Consider the equation of aluminum with sulfuric acid as shown below: 2A1 (s) + 3H2SO4 (aq) → Al2(SO4)3 (aq) + 3H2 (g) a) Classify the reaction. b) How many moles of H2S04 are required to completely react with 8.00 mole Al? c) How many grams of H, gas will be formed if 5.15 grams of aluminum reacts with excess sulfuric acid? d) If we begin with 215 grams of aluminum and 275 grams of sulfuric acid, what would be the aluminum sulfate theoretical yield of the reaction? e) Calculate number of molecules of aluminum sulfate from the theoretical yield obtained from part d). Use units, significant figures correctly. For very Large or smalL numbers, be sure to express responses in scientific notation. Show your work neatly.
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