IChOO Contest 2

We have decided the date for the next IChOO Contest! We have decided to release the contest PDF on March 30 at 9 AM EST. Again, you will have two weeks to submit but the test should not take longer than 1.5 to 2 hours. We trust you will not cheat by receiving help, posting on message boards, etc. IChOO Contest 2 will be of the same format as Contest 1. There will be one round of 15 multiple choice questions and 3 free-response questions, with a maximum score of 75.

This has been updated on our website!

#IchOO #Chemistry

Easy Math Editor

This discussion board is a place to discuss our Daily Challenges and the math and science related to those challenges. Explanations are more than just a solution — they should explain the steps and thinking strategies that you used to obtain the solution. Comments should further the discussion of math and science.

When posting on Brilliant:

Use the emojis to react to an explanation, whether you're congratulating a job well done , or just really confused .
Ask specific questions about the challenge or the steps in somebody's explanation. Well-posed questions can add a lot to the discussion, but posting "I don't understand!" doesn't help anyone.
Try to contribute something new to the discussion, whether it is an extension, generalization or other idea related to the challenge.
Stay on topic — we're all here to learn more about math and science, not to hear about your favorite get-rich-quick scheme or current world events.

Markdown	Appears as
`italics` or `_italics_`	italics
`bold` or `__bold__`	bold
- bulleted - list	bulleted list
1. numbered 2. list	numbered list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1 paragraph 2	paragraph 1 paragraph 2
`[example link](https://brilliant.org)`	example link
`> This is a quote`	This is a quote
# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"	# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"

Math	Appears as
Remember to wrap math in `$` ... `$` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$

Comments

Welcome back to Brilliant! Been a while since you've been very active. I'll be sure to check this out! :D

Finn Hulse - 7 years, 3 months ago

Yeah Thanks, i look forward to it.

Simon Mos - 7 years, 3 months ago

Yes same here.

Kahsay Merkeb - 7 years, 3 months ago

I have heard about the IChOO for the first time, please tell me the details about how to register and the difficulty level. Also, is there a IMaOO of maths??

Satvik Golechha - 7 years, 3 months ago

We are an organization called the Online Science Olympiads for Physics and Chemistry. You should register by going to Contests -> Register. Please make sure you are registering for the right contest!

For Math, you should visit OMO and NIMO or Proofathon.

Ahaan Rungta - 7 years, 3 months ago

so interesting

Alvin Reyes - 7 years, 3 months ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$