Names and chemical formulas

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serenabirkhoff_1K
Posts: 63
Joined: Sat Aug 17, 2019 12:15 am

Names and chemical formulas

Postby serenabirkhoff_1K » Mon Nov 04, 2019 5:36 pm

Do we need to know formulas for certain chemical compounds like Ammonium? One of the homework problems asked to draw a lewis structure with ammonium and another element but did not give you (NH4+). Will we need to know this for the midterm and if so which others should I memorize? I know he said to know H2O and CO2 but is ammonium included and which others?

Kaylee Sepulveda 4G
Posts: 100
Joined: Thu Jul 11, 2019 12:16 am

Re: Names and chemical formulas

Postby Kaylee Sepulveda 4G » Mon Nov 04, 2019 5:41 pm

It is possible that we will encounter common molecules and the formula will not be given.

Here is a helpful Quizlet to memorize them: https://quizlet.com/_3rd3b

SarahSteffen_LEC4
Posts: 67
Joined: Sat Aug 24, 2019 12:17 am

Re: Names and chemical formulas

Postby SarahSteffen_LEC4 » Mon Nov 04, 2019 5:41 pm

It is probably helpful to know them, but I feel that we will probably be given the formulas for solving problems. I'm not 100% sure though.

DMuth_1J
Posts: 63
Joined: Thu Jul 11, 2019 12:15 am

Re: Names and chemical formulas

Postby DMuth_1J » Mon Nov 04, 2019 6:00 pm

I wouldn't go out of your way to memorize anything, personally. If you're expected to know it, it's because we have used it so many times and encountered it so repetitiously that it would be hard not to know it (like water, carbon dioxide, etc.) Plus, most questions usually give the formula.

Natalie Nartz 4F
Posts: 50
Joined: Thu Jul 11, 2019 12:17 am

Re: Names and chemical formulas

Postby Natalie Nartz 4F » Mon Nov 04, 2019 6:04 pm

I it couldn't hurt to memorize common polyatomic ions like ammonium and carbonate, etc, but I wouldn't stress about it.

selatran1h
Posts: 52
Joined: Fri Aug 30, 2019 12:16 am

Re: Names and chemical formulas

Postby selatran1h » Thu Nov 07, 2019 1:22 pm

most questions on the exams will give the chemical formula. however, if you would like to memorize some of the chemical formulas, there is a chart in the fundamentals section of the textbook of the main ones you should know.


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