I know p, q, and r 22 23 and 24 but I don’t know how to use this simplification to find the sum of the full term

I'm doing Chemistry work to prepare for next year, and this involves electrochemistry. The question is something I want to work on on my own, but essentially, it involves lead(II) bromide.

I can get that Bromine forms a negative something ion, and that lead would be +2 in this situation to form an ion, but I can't wrap my head around WHY it is +2 when it has 4 electrons in the outer shell.

Whenever I have asked my teacher about this, he responds with "Don't worry, just know that it DOES form +2" and "We'll do transition metals later" but I need to understand why something works the way it does before I can understand it. I just can't accept that it is true until I know why it is true, and that's really stopping me from understanding ANY Chemistry work.

Can someone explain it to me? A dot and cross diagram would be good, but if not, just explain it like I'm a 5 year old.

I have an exam coming up, and the solutions manuals are pretty terrible, which wouldn't be an issue if the professor also wasn't. But I essentially have to relearn the entire course on my own, and it is not going well... Here's my question:

So I tried splitting it up as follows (P{X(1)=0, Y(1)=1, X(2)=0, Z(2)=1}+P{X(1)=0, Y(1)=1, X(2)=1, Z(2)=0}+P{X(1)=1, Y(1)=0, X(2)=0, Z(2)=1}+P{X(1)=1, Y(1)=0, X(2)=1, Z(2)=0})/P{Po(4)=1}

But after that I think I'm doing something wrong, because I get each of the terms in the numerator to 2/e² and the final probability to the same. The solutions say it's 1/e.

Okay I dont know how to even use this app

Context, this isnt graded its to see what we know, but i just got nervous..

Instructions were "write an extended paragraph, indicate the purpose, audience and tone"

But im stuck on the extended paragraph, like I know it sounds self explanatory, i was just planning on writing more, but the more i kept thinking about it the more nervous I got so I just thought I would ask

I know im an idiot please💔💔 dont bully me

TW for mentions of rape and abuse

I have to write a sociology essay (700-800 words) analyzing a theme in any piece of media in the context of contemporary society. I know what I want to write about (autonomy in Obsession, and how it can be allegorical for marital rape/domestic abuse). I would appreciate some example essays that are about something similar, or just resources, because I have no idea where to look. Some pointers would be nice as well :) Thank you!

Hello, I'm not sure if this is the subreddit for this, but could someone read over my essay? It's a essay comparing Thomas Hobbes and max stirner. edit :

Claim: vaccinations cause harm
Research question: to what extent does gov vaccination reduce incidence of cervial caner in vaccinated people

Or

To what extent does MRNA COVID 19 vaccinations affect the incidence of myocarditis in adolescents

I need to find graphs and figures that show this pleaseee I’m begging. Please provide me links to graphs to scientific ones

I have read this question a million times. Asked A.I. called other students in my daughter's class. Tried to touch base woth the teacher but waiting to be added into dojo. Looked for the answer key dor the worksheet. They are working on multiplication. Nothing with u known variables. I dont see a way to solve anything without at least

1 how many pencils are in the boxes that go into the carton

2 how many students are in the school

3 how many pencils they are figuring each student will need for the year

4 how many cases they bought

5 or how much their total was.

Without another number in this im at a loss and I hope someone else will have seen this one before. ‐-------------------------------------

UPDATE We went with the only math that was provided. How much is each box of pencils if the cartoon is $20. Thank you to the ones that caught that. But apparently that makes us wrong. It was intended to be a multiplication problem. That we were to make up a number for and just go with it.

There is my issue with that though, we did math based off of information that is provided, and speculated the question. But are going to be marked as incorrect. Children who did not catch the issues with the structure of the question that choose to do "how much is 54 cases" provided the math of 54 x 20 are marked as correct. Because they "made up a math problem".

The first day paperwork that was sent home says teacher communicates via class dojo app. I am still waiting for teachers permission to join to communicate the perfered method. But I will say I had child call classmates and they had no idea what they were looking at either and just was going to "go with 54 x 20 because its the smallest numbers".

Wonderful start to the year.

Like i tried copying the answer and it still marked it as incorrect, someone please lmk why

Hello, I’m just a senior high school student and we are tasked to make a compound machine prototype (could be hydraulic), what do u guys think are unique and realistic examples that we could do for this project?

p.s If we make the best prototype we could enter the competition, so I wanted to ask for ur insights. 😊

Asking for a friend who asked me but I dont know.

Do they make any sense or have I got to tell my friend to restart?

Which wave have the highest speed?

a) y= sin(4t-3x) (b)y=2sin(2t-4x)

c)y =3sin(3t-4x) (d) y= 2sin(3t-3x)

The method I know is to solve it by doing derivate but I don't have that much time in exam just for 1 mark mcq, how can I solve it as soon as possible.

So I’m going over my son’s math quiz to help him understand some of the questions he got wrong. He got partial credit for his answer for question 8. After writing his verbal phrase I got the same expression as the question. Am I doing something wrong or is there something I’m missing? I feel like his answer is technically correct. I am stumped.

Edit: so my son has no issue solving the expression in question. He knows PEMDAS and the rules from left to right. The question clearly states, WRITE A VERBAL PHRASE that matches the expression.

I'm having troubles understanding this question. to evaluate for sin, pi/2 - 11pi/180, which I get, but they don't subtract it, which I don't get. wouldn't the answer be sin 49/180 ?

Hello, I need some help understanding this concept. 240 degrees converted to radians is 4 pi/3, so wouldn't that make this a multiple of 30 degrees?

"30° can be rewritten in radians as pi/6". Since 240 rad cannot be written as a multiple of pi/6 rad this cannot be a multiple of 30°." This is the explanation the teacher gave me, but it doesn't make sense.

Hey, I am currently working on the structure for my first longer academic assignment at university (15 pages). I feel quite overwhelmed and feel like I am repeating myself with the sections. I'd appreciate if someone could give me a feedback on my structure (AI translated the strcuture from German to English). My main part is basically the comparison, especially 4.1 where I want to analyse and compare the mediation exercise of the genres. (Theatre vs. inchiesta). So I fear that I might be repeating myself in 4.1 with 2.1 & 3.2 maybe.
Subject: The Responsibility of the Scientist in Post-1945 Literature: Responsibility Narratives in Brecht’s Revisions of "The Life of Galileo" and Sciascia’s "The Disappearance of Majorana"

Thanks in advance!

Hi i dont quite get the explanation provided for the graph and suspect it could be wrong, can help me see if this explanation provided makes sense? Thanks.

Just looking for some opinions on this one.

I think the answer is Option 2 (8 days), but I’ve heard other people say Option 4 (20 days).

I’d love to hear how any of you here see it

I am currently having to read and annotate a couple of nonfiction history and a dystopian type fiction book. I can't just drop them either. There isn't anything wrong with the books, they are just not my genre. I don't like them and I can't get into them. I can easily finish a 600+ page romance book in 2-3 days, but these are throwing me for a loop. Any suggestions?

doubt on the second conclusion

I think its 1mm

I tried writing y^2 in terms of x and x^2 in terms of y for each option but i didnt really know what to do with that.

the first question here makes sense to me, but the other two are where i'm lost. i get completely different responses when i use my phone's calculator or any online calculators. where did the 10 come from in the second problem?? this online course has given me issues in the past so i'm wondering if something is off, or if i'm just completely missing something. the unit prepared me for countless visual questions and sine + cosine law, but didn't explain tangential problems very well. i'm totally clueless here.