Ionic Definition and 268 Threads

Homework Statement As the title would lead you to believe I have to classify each solid as a covalent, ionic, metallic, or molecular solid. These are the given solids Calcium Fluoride Rhombic Sulfur Frozen Ethanol Pure Calcium Homework Equations n / a The Attempt at a...

Hello everyone, I've been trying to figure out why when ionic compounds are formed that they are exothermic (meaning they give off heat). The only theory I have is that when the ions are coming together, the motion from them moving and possibly the friction of their surfaces making contact...

Hey all, So i am aware that ionic bonding is the giving/recieving of electrons between atoms to form a compound. My question is what is it that makes the electron "move" from one atom to the other, I know that once the electron has moved the atom it came from becomes positively charged and the...

[SIZE="4"][FONT="Tahoma"]Why are most of the ionic crystals Diamagnetism ?? Ionic crystals are those crystals that are related to ionic bonds of atoms such as sodium chloride NACL

So I never got too far into chemistry and had never had much thought put into this. What exactly causes an ionic bond? And I mean, I know the usual 'one atom releases an electron and another gains it, causing net electric charges on both atoms', but what causes the electron to leave an atom to...

Li (Electronegativity) = 1.0 Br (Electronegativity) = 2.8 2.8 - 1.0 - 1.8 Ionic = 2.0+ Polar = .4 - 2.0+ Non polar covalent = 0 - 0.4 1.8 doesn't it fall into the polar range? I got that wrong on a h.w. question

What are the factors that determine the strength of an Ionic bond? Taking the example of LiF and K20, why does LiF have a stronger bond strength?

What is the net ionic equation of Al(OH)3(s)+3HCl(aq)=AlCl3(aq)+3H20 The answer a got was Cl is the only spectator ion Al3+ +3OH3- +3H3+ = Al3+ +3H2O

Homework Statement Predicting the products of electrolysis Ionic substances in solution break down into elements during electrolysis. Different elements are released depending on the particular ionic substance. At the negative electrode, positively charged ions gain electrons. This...

So i was doing my school work earlier and i had trouble wrapping my head around this particular topic, even though i was able to finish all of it correctly, i want to make sure it sinks it well so i once again decided to approach these forums :) We were naming Ionic compounds, specifically...

Just need some clarification as to whether or not I'm doing this right. 1 drop HCl and several drops KMnO4 added to 2mL NaHSO3. HSO3- → HSO4- + 2e- MnO42- + 4e- → MnO22- 2HSO3-(aq) + MnO42-(aq) → 2HSO4-(aq) + MnO22-(aq) A few questions: -Since NaHSO3 is not an acid, the hydrogen atom...

Is it possible to impart heat to a cloud of protons via EM radiation? Photons usually interact with electrons, and I can't find much info on pure photon-proton interaction. Also, if you took some hydrogen ions (protons, to be specific), could you form a state of matter, such as a liquid...

Homework Statement Write the net ionic equation for the following reactions: 1). Excess 6 M HNO2 is added to 1 M Na2CO3. Na2CO3 displays 2eq/mol 2). Nitric Acid is added to Zinc metal. The products are nitrogen monoxide and zinc ion. Homework Equations NA The Attempt at...

Homework Statement The specific heat capacity per unit volume is denoted CV.Sketch Cv/T as a function of temperature T,in the limit T goes to zero, for both an ionic solid ,and a metal.Why do curves differ ? Homework Equations The question is very specific ,and in these cases as you know...

molecular: Pb(NO3)2 (aq) + 2 KI (aq) ----->2KNO3 (aq) + Pbl2 (s) Ionic equation Pb2+ (aq) + 2NO3- (aq) + 2 K (aq) + 2 I- (aq)----->2K+ (aq)+ 2NO3- (aq) + PbI2 (s) I know why they break apart in the ionic part, its because ionic things aer broken up, but how would you know that they join...

2HCL (aq) + Zn (s) ----->H2 (g) + ZnCl2 (aq) Ionic equation 2H+ (aq) +2CL-(aq) +Zn (s) + Zn2+(aq) + +2CL-(aq) above is the original equation and the next step is the ionic equation also above, why in the ionic equation don't they put charges on everything ? like the Zn, on the left side of...

Can the concept of hybridization be applied to what we consider ionic, such as MgCl2 (sp hybridization, if we apply it)?

Sodium is a soft, reactive metal. Chlorine is a poisionous, reactive gas. Expose them to one another and they will form table salt, through ionic bonding. The compound is bonded throughout, forming a geometric matrix of bonds. If submerged in water, it will be dissolved into free Na+ and...

Because if redox is the transfer of electrons between atoms, and ionic bonding is when one or more electrons go are transferred from one atom to another, wouldn't that mean it is basically a redox reaction?

I've been wondering if atoms were lazy particles, because if Ionic bonding occurs when electrons are taken from one atom to another, and the electrostatic attractions between the oppositely charged particles keep them together, why is it that the covalent bond doesn't go ahead and switch the...

Hi I am new on here and also new to science. I am in College getting my Biology 12 and Chemistry 11. I am having a really hard time understanding the difference between the ionic and the covalent bond. I am having trouble understanding: a) the net charge that creates an ion b)the ionic...

Homework Statement Of the following, which correctly shows an ion pair and the ionic compound the two ions form? Homework Equations a. Fe3+, O3+ = Fe2O3 b. Cr3+, I- = CrI c. Cu2+, O2- = Cu2O2 d. Sn4+, N3- = Sn4N3 The Attempt at a Solution a. Fe3+, O3+ = Fe2O3...

Hydrogen has one valence electron, Chlorine has 7. Chlorine only needs one to become stable, and hydrogen wants to get rid of its only one. When they come in contact, shouldn't they react and form HCl, but held together by ionic bonds?

I have to write an empirical formula for these ionic materials: Al N Sr I so i know that Al gives 3 electrons and N will get 3 electrons. to make them to be neutral so the empirical formula of Al and N need to look like this AlN? and for Sr and I i know Sr gives electrons and I get 1 so...

The strength of an acid is determined by the amount of it per volume ionizes right? So is it safe to say acids, when not in water, are composed of ions? So for example, HCL has the potential to be an acid,as it is made of a H ion and a CL ion, but cannot be until it reacts with water, because...

Homework Statement This is the worksheet: http://webcache.googleusercontent.com/search?q=cache:9jyqtuswY1AJ:www.chemmybear.com/groves/apch13_imfans.doc+ap+chem+pasadena+imf%27s&cd=1&hl=en&ct=clnk&gl=us&client=firefox-a Homework Equations None, as far as I know The Attempt at a...

I have gotten the principles of them down, but I still have some more detail to cover. From what I know about Ionic bonds is the following. -When an atom reacts with another atom in order to gain a full valence shell, the atom can either lose and electron, or gain one depending on the number of...

These are practice problems (not hw) that I'm trying to work on, if anyone could help me out, thanks! I'm trying to find the net, ionic and molecular eq. 1)CaCO2+HCl=CaCl2+CO2(g)+H2O I just know that CO2 AND H2O doesn't break down because it's a gas and liquid. 2)NaHCO3+HBr=NaBr+CO2(g)+H2O

Why do ionic hydrides have more density than the corresponding metals? I know that interstitial hydrides have lower density than the corresponding metals from which they were formed as the crystal lattice expands due to inclusion of H2. What makes ionic hydrides more denser then?

How to find the formula of an ionic compound if all you have is... the weight of the sample and the conductivity of the given sample and of a conductivity standard already found? Ive been stuck on this for hours X)

Homework Statement Caculate the pH at which Magnesium Hydroxide begins to precipitate from a solution containing 0.1M Mg2+ ion? Ksp=10^-11 Homework Equations The Attempt at a Solution I did not understand why Ksp is given. Since the concentration of Mg2+ is 0.1, concentration...

Homework Statement So the question is: Enter the net ionic equation for the reaction of aqueous sodium chloride with aqueous silver nitrate. Homework Equations So i know that the first part of the equation is: Na(ClO2)aq+Ag(NO3)aq --> i have no clue what should go here. Please...

Hi. I'm not even sure if I'm posting this in the best forum! I'm having a lot of trouble grasping parts of this paper.. Eur Biophys J. 2009 Jun;38(5):637-47. Epub 2009 Mar 4. A nonlinear model of ionic wave propagation along microtubules. Specifically, they use a phase space plot that...

I've seen ions notated with the postive or negative sign both before and after the element name (usually after). Is this just preference or does its placement indicate anything?

Hello; What is the ionic formula for a carbon-12 ion? It has 4 electrons in its 2nd shell with a capacity of 4, so does that make it C4+ or C4-? I think that it is C4+, because in order for it to bond with the oxygen molecule, O2, it must be positive, as the oxygen ion is negative... is this...

Is the only purpose of net ionic equations to see which elements were oxidized or reduced? Or is there another reason why it is useful?

【questions】ionic & covalent compound Hello, i have some questions about ionic & covalent compound, please help 1. is molecule include ionic compound or only covalent compound? 2. will boiling broke the ionic / covalent bond? 3. suppose there are 3 atoms,1 sodium and 2 oxygen, then the...

Hi, I have a solution containing acetic acid and NaCl. The solution is adjusted to a particular pH value by adding NaOH. For the calculation of the undissociated acetic acid concentration, I use the correction suggested by Sortwell 2001 (J. Food Prot. 63(2): 222-230 (2000)), which says that...

I think this thing might work. It looks like it has a small opening that probably has a high potential electrode as the source of negative ions. They claim it will clean the air in a 100 square foot area...

Homework Statement If removing electrons from atoms requires energy, and adding electrons to atoms usually liberates energy, then why is energy liberated when the ionic compound NaCl forms from the elements sodium and chlorine?Homework Equations NoneThe Attempt at a Solution My solutions manual...

We have been given three balanced equations to write as net ionic equations. Our teacher forgot to teach us this bit and has now left the college. I'm really stuck, any help would be so kindly appreciated TY x The equations are: 1. Pb(NO3)2 (aq) + 2KCl (aq) = PbCl2(s) + KNO3 (aq)...

Hi, I just learned about oxidation and reduction reactions and I have some questions. Are all ionic reactions redox reactions? Do elements that make up covalent compounds always have an oxidation number of zero because they only share electrons, not give or take? That is what I was thinking...

I come from Hong Kong and want to know the ans. THX very much! Also curious to know, which nationality will browse this forum most?

How do you know whether AsI3 is ionic or covalent? I was asked on an exam to name it, and I called it Arsenic triioide when the prof said it was Arsenic (III) iodide. I asked a sophomore TA one time how to tell when it's covalent, and she said the beginning column of the p subshell...

Homework Statement Write the net ionic equation for H2SO4(aq) to the KMnO4(aq)Homework Equations The Attempt at a Solution I am confused on which one should i write. The first method is to list all the species, then use the data book to find which one is the strong OA and SRA. Multiply one or...

I got confused in dealing with ionic strength. Homework Statement In calculating ionic strength, do we consider the composition of the solution? Take for example: Solution 1 has 20 ml of 0.1 M NaCl and 35ml of 0.2 M CaCl Solution 2 has 25 ml of 0.1 M NaCl and 30 ml of 0.2 M...

Can someone tell me the full formula and net ion equation for these? I can't seem to get them right even thought I think my answers are right. a.NaClO(aq) + HCl(aq) → ( I got NaClO(aq) + 2HCl(aq) -> Cl2(aq) + NaCl(s) + H2O(l) but it won't accept my answer, so no idea of net equation.) b...

Homework Statement Hey I am having problems understanding how to get the net ionic and ionic formula. Any suggestions and/or tips on how to do them?

1. 12.53 mL of a 1.74 M solution of AgNO3 are mixed with 1.43 mL of a 9.63 M solution of MgI2. Write equations for the reaction, ionic and net ionic. 2. Usually they give the products of the reaction but in this case we have to figure out what is produced. Where do I start? Thx

I've been struggling with this for a while now. Cu(ClO4)2 is soluble so it should drop from both sides of the net ionic equation, right? Leaving only H20. Am I missing something? http://usera.imagecave.com/hotrod73dart/question/netionic.JPG