Compounds Definition and 227 Threads

Which 2 groups of substances below contain 1 element, 1 compound and 1 mixture? pick 2 groups. A.) Gold, sodium chloride, steel B.) oxygen, iodine, air C.) methane, iron(III)chloride, sea-water D.) Helium, carbon(IV) oxide, mixed dessert E.) Bronze, stainless steel, nitrogen(IV)oxide i...

Write balanced equations to show the formation of each of the following compounds. Name the reactants in each case, and show clearly the removal of the water molecule. a) butyl propanoate b) propyl methanoate Im not exactly sure how to answer this question... below are pics of the...

Why is NO2 called nitrite? I'm going over this again and I'm still confused. Part 1: Cations Group 1A and 2A cations are given the name of the metal plus the word "ion." Example: Mg 2+ is called a "magnesium ion." Some metals form more than one kind of cation as we saw in the last...

Are there any good atom simulators where kids can bash some atoms around on screen using all the measured real world numbers, so bringing reactive elements together would create compounds but something that wasn't staged or pre-animated. something with more of a constructive 'do-anything' on the...

IUPAC naming! Hey folks, I just wonder how would you name this compound CH3CHBrCH2ClCH2 is it 3- Bromo -1- chloro butane or 2- bromo 4- chloro butane another question : does CH3OCH3 form a hydrogene bond or not? Any help would be greatly appreciated

help on this? Use electron dot diagrams to form ionic and covalent bons BeF2 [ type of bond ] [ electron dot diagram] H2O Br2 NF3 Na2S CaCl2

I distilled some horrible tasting wine to make it into a usable windshield washer fluid (it's just ethanol with some horrible tasting organic things). The wine started as a light yellow color, and it distilled into a colorless clear liquid. Ok that's good, ethanol is supposed to be colorless...

Does anyone have or know where I can find literature values for the melting points (or melting ranges) of the following three semicarbazone compounds? 4-Methoxybenzaldehyde semicarbazone Isopropylbenzaldehyde semicarbazone Carvone semicarbazone (either the R or S diasteriomers) I haven't been...

From what I understand a chiral compound is one of which that when mirrored it is not identical. Not identical in what way's? Is it not superposable? Not have same properties? I have a multiple choise question asking which of the following is a chiral compound and the ones I choose are not...

Im not sure if anything like this has been posted before, and I am not sure if this was the right place to post the question, ao i apologise in advance if i make anyone angry... at the beginning of the year my lecturer posted the challenge to find another compound which, like water, was lese...

1. Calcium + Water yields calcuim hydroxide + hydrogen Need balanced and net ionic equation, I got Ca + 3/2H20 =Ca(OH)2 +H I can't figure out how to balance it further and I don't know how to get the net equation cause calcuim hydroxide is soluble which means it wouldn't be in the net...

Hi! I'm having trouble answering some questions on a lab I did in class. Any help at all would be greatly appreciated! The purpose of the experiemt was to test the differences between pure substances (elements, compounds) and mixtures. If the procedure would help, here it is: 1. Mix equal...

Ok i got into an argument about the feasibility of this idea. For every bullet ever made from now on, put a metal composition inside of it that is unique to every single bullet produced. 0.09864 moles/g MgS 0.00787 moles/g Ca2S 0.01535 moles/g Cu4Zn3 0.06772 moles/g Ti5Cd2 Bullet cases...

I’m puzzled by these two oxides of nitrogen, especially with NO, how do they exist, what favors them? If nitrogen has 1s2 2s2 2 px1 py1 pz1 configuration how or why does he form compound with only one oxygen atom ? Nitrogen has +1 oxidation number here right? So by what kind of connection...

Now obviously, ionic bonds are "weaker" than covalent bonds, but my question is that according to the attached image, you can't necessarily have crystals being formed in a covelant bond as you would in an ionic bond, right? And also, when an ionic bond occurs, what makes it possible for a...

I'm having a lot of trouble with some of these questions. Please help Converting manganse nitrate-6-water to manganese sulfate-4-water Converting calcium acetate-1-water to calcium nitrate-4-water. It's the "water" bits that confuse me. I just need a couple of ionic equations to show...

Hi we did a lab today for testing compounds in foods... So basically the only way to detect if a lipid is present is by transparency? Like we used a paper towel, we added a few drops of the substance to the paper towel and then rubbed it today, if it was transparent it tested positive for...

how do we know if a molecule is optically active? does it have to do something about R,S configurations? I have no idea, what it is...and how to know whether a molecule is optically active or not thanks

Just a very quick question. Ethers are such compounds as Methoxymethane and Propoxyoctane. The shortened structural forumlae for these are CH_3 O CH_3 and C_3 H_7 O C_8 H_{17}. I was wondering if it was possible to get an Ether with two oxygen atoms dividing the hydrocarbon groups; E.g...

When classifying as to whether an atom, molecule, element, or compoud, what would the following be? -H20 -H2 -C6H12O6 (glucose) -N2 I guess i am kind of confused as to the difference between molecules and compounds. I thought water was a molecule, but according to the definition of a...

hey, if anyone is good with organic chem, could they please list some common and effective tests to distinguish between different organic compounds such as alkanols, acids and alkenes, etc.

What makes compounds explosive?Oxygen-hydrogen for example?Electrons move to the more stable orbit and loosing energy, but I'm not so sure.Plese help me.

I´m doing a research for a report on industrial production of any compound, i say any, because we have to choose one compound and write a detailed production process and the equipment it´s needed to make that particular process happen, the thing is, me and my friends have done plenty of...

Recently in Chemistry we have been doing about how it is possible to identify carbon compounds by how many proton environments there are around a molecule. For this we look at graphs with various peaks dotted around them, this is not what bothers me, what bothers me is that some of these peaks...

Is there a definitive guide to naming nonorganic compounds. Preferable some type of flow chart diagram of some sort. I can't imagine how many times an experiment went horrible wrong because of the illogical nature of the naming system.

sorry but this si really hard for me i don't understand these 2 question. Explain why some noble gases such as Xe will form compounds and some such as Ne will not? What kinds of orbital arrangemenets contribute to the bonding in ethene H2C = CH2 thats a double bond i tried and i...

Can anyone explain to me really quick how to go about Synthesis and Decomposition of compounds, can you show me an example with Aluminum Flouride and Potassium Chloride ? Thank you for your help