New Chem Undergrad Needs Help with Lewis Structures & Empirical Formulas

  • Thread starter Thread starter odooma
  • Start date Start date
  • Tags Tags
    Chem Undergrad
AI Thread Summary
The discussion focuses on a chemistry undergraduate seeking assistance with Lewis structures and empirical formulas for specific ionic and covalent compounds. The compounds in question include potassium iodide and calcium fluoride, along with the covalent compound sulfur dichloride. The user is also tasked with writing balanced chemical equations for reactions involving silicon and chlorine, lithium and bromine, and ethylene with chlorine. Participants emphasize the importance of attempting the homework independently to identify specific areas of difficulty. Overall, the thread highlights a collaborative effort to understand foundational chemistry concepts.
odooma
Messages
2
Reaction score
0
Hi

This is my first science subject ever, and I am having difficulties so I would love to have all the help I can get please.
My assignment is about Lewis structures and empirical formula for the following



Homework Statement


1.potassium iodine, 2. calcium flouride, (these two are ionic compounds)
3. sulfur chlorine ( covalent compound)

Write both an equation using Lewis structures and a balanced chemical equation for the ff reaction
1. Silicon atoms and chlorine molecules
2. Lithium atoms and bromine molecules
3. Ethylene molecules (C2H4) and chlorine molecules; the product is C2H4Cl2


Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org
You need to attempt the question and let us know where your stuck. No one will do the work on here for you. We need to understand the material. :)
 
Emp form Lewis
..
potassium iodine - potassium iodide KI K. .. I.
..
..
calcium flourine - calcium chloride CaCl .Ca. ..Cl..
.
 
Thread 'Confusion regarding a chemical kinetics problem'
TL;DR Summary: cannot find out error in solution proposed. [![question with rate laws][1]][1] Now the rate law for the reaction (i.e reaction rate) can be written as: $$ R= k[N_2O_5] $$ my main question is, WHAT is this reaction equal to? what I mean here is, whether $$k[N_2O_5]= -d[N_2O_5]/dt$$ or is it $$k[N_2O_5]= -1/2 \frac{d}{dt} [N_2O_5] $$ ? The latter seems to be more apt, as the reaction rate must be -1/2 (disappearance rate of N2O5), which adheres to the stoichiometry of the...
I don't get how to argue it. i can prove: evolution is the ability to adapt, whether it's progression or regression from some point of view, so if evolution is not constant then animal generations couldn`t stay alive for a big amount of time because when climate is changing this generations die. but they dont. so evolution is constant. but its not an argument, right? how to fing arguments when i only prove it.. analytically, i guess it called that (this is indirectly related to biology, im...

Similar threads

Back
Top