Angel

When sodium carbonate reacts with hydrochloric acid, the carbonic acid that is formed immediately breaks down into carbon dioxide and water. What mass of sodium carbonate would have been present originally if 5.0 L of carbon dioxide were obtained at STP in this way?

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When ammonia is burned in oxygen, free nitrogen gas and water are produced. What volume of ammonia will react completely with 25.0 L of oxygen at STP? What volume of nitrogen gas is formed at STP?

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What mass of chlorine gas will be needed to react completely with 85.5 g of potassium iodide in a single displacement reaction?

I've got a whole list of problems to do and they're all similar to the three of these. Can anyone help me out with them, preferably step-by-step, so I can follow along a little better? Any help would be appreciated! :)

Is there a quick way to tell if the following are ions, covalently bonded, or ionically bonded? The idea would be to know that, and be able to decide if they're in ions, molecules(covalent), or formula units(ionic).

Lead (II) nitrate

Chloride

Hydrogen peroxide

Calcium bromide

Magnesium sulfate

1. 3.25 x 10^23 formula units iron (II) sulfate

2. 9.25 x 10^23 molecules oxygen

Either or both would be awesome. I'm trying to get the process down, and it's a little difficult to do when I wasn't there for the class when we learned it, and I've got like four pages of the stuff to work on. Help would be greatly appreciated. :)

I don't mean to sound rude, but this is genuine curiosity. Do you take the time out of your day to answer questions because you really want people to gain something from your answer? Because you want the points? Maybe because you want to see how witty (or otherwise) you can be in an answer...? There's tons of possible reasons. What are yours?

Thanks! I wish you all a wonderful day. :)

what if for you, yourself is more a part of someone else, or other people around you. are you really yourself if you are more someone else? not just in how you act, or think, but, how you are. like, what if, instead of your thoughts being just your own, they are more like someone else's... i dont know exactly how to convey what i mean because words just dont describe accurately enough... what i mean is, if someone understands others well enough that they KNOW what they think, feel, etc, that you arent really totally YOURSELF. that, you are so much someone else, that you arent really yourself.... well, if you can understand what i mean, feel more than free to comment, and thanks in advance for even trying to understand what i meant, and special thanks to all the answers (hopefully)

-Angel

when i was younger, i can remember waking up and be crying. i couldnt remember what the dreams were (and i still can't remember many of my dreams). i just know that i woke up crying really hard for no apperent reason. i have read stuff on REM sleep, and other stages of sleep, but i can't seem to find a reason for crying when i was sleeping. it seemed that i had been crying for several minutes before i woke up. i dont think it had anything to do with those days that i woke up crying because they were just like any other day. i also seem to know when i have a dream. i can never remember what my dreams are, but i can tell a general idea of the mood in my dream. it was a while ago, several years, but i cant remember ever feeling those dreams. i cant even remember a mood in them. i just knew that i woke up crying. nothing really presented itself to me as to why i woke up crying. it happened several times, and was fairly frequent when i was younger. at the time, i was between the ages of 3 and 9 or so. i am 13 now, but i do remember waking up crying often. and, even then, at the age i was, i understood what was happening, and i tried to deduce what was happening and why. i was not an unintellegent child then, and i dont percieve myself as unintellegent now either. but, i still couldnt find any reason for it happening.

well, thanks for any answers you may give. i hope you all have a great day!!!

-Angel

i know the answer i am looking for, and i know the answer i would give it, but i want to know what others think. thanks for answering the question. :)

instead of hearing or seeing a very specific thing or phrase, could telepathy be feeling a need, or desire, of animals, or people? could it be feeling the need or thought that an animal needs water, or that a person needs comfort? could it be simple feelings rather than specific thoughts?

what would your first reaction be if you saw a giant strawberry dancing with a t-rex on the school football field?

yes, i know, its just a little different than most q's, but i was just a little curious, and a lot bored...lol :)

what is your favorite song or songs right now? what songs sound good or have a really strong meaning to them? why do you like it/them so much? what is your favorite verse to them?