Tuesday
September 2, 2014

Search: ionic or covalent

Number of results: 1,489

chemistry
I don't understand net ionic equations; for example, when you're given Pb(NO3)2(aq)+2LiCl(aq) how do you know that in the product Pb has to be paired with Cl2 and Li with NO3 to make PbCl2(s)+2LiNO3(aq)?
January 7, 2009 by GP

Chemistry
I misread the question i posted earlier. The equation is Pb(OH)2 (s) + NaOH (aq)---> ? I know that the complex ion formed is Pb(OH)4^2- , but would that be written in a balanced net-ionic equation?
April 4, 2010 by Anonymous

Chem
Write the balanced net ionic equations for the reaction of a) added H+ and B) added OH- with the components of the acetic acid/sodium acetate buffer solution:
February 9, 2011 by Bubba

chemistry
Phosphoric acid is a triprotic acid with pKa's of 2.14, 6.86, and 12.4.The ionic form that predominates at pH 3.2 is?choose the corect answer (a) H3PO4 (b) H2PO4^- (c) HPO4^2- (d) PO4^3-
February 15, 2011 by kabelo

chemistry
Write a net ionic equation to show that ascorbic acid, H2C6H6O6, behaves as an acid in water. Consider only its first ionization
December 4, 2011 by Seep

chemistry
Ionic compounds at room temperature usually exist as solids with distinct crystalline lattice structures. True False I think true
November 10, 2012 by Keri

Chemistry
Considering the following precip reaction Pb(NO3)2(aq)+2KI(aq)----->PbI2(s)+2KNO3(aq) What is the correct net ionic equation? I think it is 2NO3+^-+2K^+---->2KNO3
February 27, 2013 by STAT

chem
The bond length of RbF is 284.00 pm. What would be the dipole moment, in D, of this compound by assuming a completely ionic bond? Remember e = 1.60x10-19 C; 1 D = 3.34x10-30 C*m
February 23, 2014 by sara

biology
how do you know if it is a covenant bond or ionic bond?
June 13, 2009 by Jessica

CHEMISTRY
write formulas for the binary ionic compounds formed between the follwing elements a) sodium and iodine b) calcium and sulfur c) zinc and chlorine d) barium and fluorine e) lithium and oxygen
February 28, 2008 by john

chemistry
Write formulas for the binary ionic compounds formed between the following elements: a. Sodium and Iodine b. Calcium and sulfur c. Zinc and Chlorine d. Barium and Fluorine e. Lithium and Oxygen
October 19, 2009 by lynda smith

chemistry
will the following solutions be acidic, neutral, or basic? Write the net ionic equation for any reaction that takes place. NH4Cl, KHCO3, LiClO4, NH4NO3, H2CO3, LiClO2, Ba(NO3)2
July 18, 2011 by chelsea

Chemistry
What are the characteristics of an ionic bond? Hard, often brittle, high melting point, often soluble in polar solvents such as water. Of course there are exceptions.
November 14, 2006 by Bryan

chem
The molecular formula is: Na(s)+ H2O(l)---->NaOH(aq)+H2(g) This is showing a single displacement reaction.I am not sure how to show the complete ionic equation, this is what I have so far: Na+(s)+ H+ H+O2-(l)---->Na+OH-(aq)+H2+(g) Is this how you show it?
April 21, 2009 by Lenny

Naming Ionic Compounds
What r monvalent metals? Are they metals that have only one possible ion charge? Any other information would be greatly appreciated, thanks
April 21, 2010 by Sara

Chemistry
Help please am kind of confused on this problem, am mostly confused on what state the products will be. Find net ionic equation? 2Al(s)+ 3CuCl3(aq)-> 2AlCl3(?)+ 2Cu(?)
October 4, 2010 by John

chemistry
What chemical reaction is responsible for the endpoint observed when the NH3/NH4Cl buffer solution is titrated with HCl? Write a blanced ionic equation for the reaction.
March 27, 2011 by redgy

chemistry
Which phase of ionic compounds are good electrical conductors because the ions are free to carry electrical current? A. Solid B. Liquid C. Gas D. Crystalline I say B
November 10, 2012 by shana

AP Chem ?
I had posted this question before and wanted to know if I had gotten the right answers. We have to identify the five compunds of H, N, and O described below. For each compound, I have to write a Lewis structure that is consistent with the information given. a.) All the ...
December 3, 2006 by Sam

chemistry
why is the formula written for an ionic compound such as NaCl the empirical formula,rather than a molecular formula?
April 27, 2008 by caleb

Chemistry
What are the equations for these two equations? Not net ionic equations. a) Nickel (II) chloride and iron b) Sodium and water
October 12, 2013 by Matt

Chemistry - solubility
Arrange the following compounds in order of increasing solubility in water: * O2 * LiCl * Br2 * CH3OH Like dissolves like; that is, polar compounds usually are soluble in water and non-polar compounds are not soluble in water. From that description, make your choices and post ...
January 2, 2007 by Belinda

Chemistry
If the pH of a solution is 6, what are the hydrogen- and hydroxide-ion concentrations? The PH of a 0.1 M MCl (M+ is an unknown cation) was found to be 4.7. Write the net ionic equation for the hydrolysis of M+ and its corresponding equilibrium expression Kb. Calculate the ...
February 19, 2013 by Jefferson

chemistry
1.what is the advantage of heating gellium semi-conductor with sites or gold instruct of indium and boron? 2.why co-ordination number of 12 is not found in ionic crystals? 3.what kind of symmetry is exhibited by a match box?
June 7, 2013 by edward

Chemistry
What is true about the element francium (Fr, atomic number 87)? Choose all that apply. A) It has seven valence electrons. B) It is likely to form ionic bonds. C) It is in Period 7. D) It is nonmetal. E) It is a metal. I think it is B, C, and E?
February 28, 2014 by Anonymous

Science
What is true about the element francium (Fr, atomic number 87)? Choose all that apply. A) It has seven valence electrons. B) It is likely to form ionic bonds. C) It is in Period 7. D) It is nonmetal. E) It is a metal. I think it is B, C, and E?
February 28, 2014 by Anonymous

chemistry urgent!
what is the net ionic for these following balanced equations: 2(NH4)3PO4(aq) + 3Ba(OH)2(aq) -> Ba(PO4)2(s) + 6H2O(l) + 6NH3(g) 2HNO3(aq) + K2CO3(aq) -> H2O(l) + CO2(g) +2KNO3 NaF(aq) + HCl(aq) -> NaCl(aq) + HF(aq)
April 25, 2014 by Anonymous

chemistry
I have two questions. 1. How do I predict the formula of ionic compounds when one is a polyatomic ion? Example: Al (+3) and SO4(-2). 2. How would I obtain the charge of Hg in the formula HgCl2?
March 7, 2008 by Kate

chemistry
what ionic compounds could you form from the following? Sodium Calcium Neon Phosphorus Chlorine i have NaCl, CaCl2, Na3P, and Ca3P2 is that all and can neon be used?
June 6, 2009 by lyne

Chem
What is the correct net ionic equation for the following set of reactants? Ba(OH)2(aq)+H2SO4(aq)---->2H2O(l)+BaSO4 I keep getting the answer as 2OH^- + 2H^+ ----> 2H2O(l) but it counts it wrong.
October 6, 2010 by Kaylee

Chemistry
What is the net ionic equation of reaction of MgCl2 with NaOH? I got the equation and then balanced it and then omitted the spectator ions and ended up with: Mg(OH)2(aq)--->Mg(OH) (s) I wanted to confirm to see if that was correct, thanks.
September 26, 2012 by M

Chemistry
Calculate the cohesive energy of potassium iodide (KI). The ionic radii of K+ and I−, are 152 pm and 206 pm, respectively. Assume the Born exponent n is 10. Assume a Madelung constant of 1.7.
September 21, 2013 by ss01

chemistry
In which of the following pairs of compounds are both members of the pair ionic compounds? Explain a. Pl3 and HBr b. H2S and NCl3 c. LiF and H20 d. LiI and NiO
February 9, 2014 by Lisa

Chemistry
what happens when the nucleus of one atom attracts a pair of shared electrons more strongly than the nucleus of the other atom in the bond? If a molecule is polar as a result of a polar covalent bond, which end is positively charged and which end is negatively charged?
November 18, 2012 by Chem Freak *not really*

Chemistry
What happens when the nucleus of one atom attracts a pair of shared electrons more strongly than the nucleus of the other atom in the bond? If a molecule is polar as a result of a polar covalent bond, which end is positively charged and which end is negatively charged?
November 18, 2012 by Balls

OChem
What intermolecular forces are important in the binding of organic molecules to the absorbent in absorption chromatogrpahy? Select all that apply. A) London forces B) Van der Waals forces C) Covalent Bonding D) Hydrogen bonding E) Dipole-dipole interactions F) Lewis acid-base ...
October 12, 2011 by Allison

Peptide Bonds
Which of the following shows linear sequence of atoms joined by covalent bonds in peptide backbone. a) -N-C-C-N-C-C-N b) -N-C-O-N-C-O- c) -N-C-C-O-N-C-C-O d)-N-H-C-C-N-H-C-C The answer is a). Is that because it's the only one that linear; as in it doesn't have any oxygens or ...
March 3, 2011 by Lena

Chemistry
What is the balanced net ionic equation for the following reaction: 2 NH4Cl + Ba(OH)2 = 2H2O + BaCl2 + 2 NH3 i got 2NH4^+ +2OH- = 2H2O + 2NH3 but it keeps telling me i'm wrong
November 13, 2010 by Harry

Science
You are given two solids that look nearly alike, one of which is held together by ionic bonds and the other by van der Waals bonds. How could you tell them apart?
October 22, 2011 by Sheryl

Chemistry
What is the energy of a bond formed between a potassium (K+) cation and an iodide (I−) anion? The ionic radii of K+ and I−, are 152 pm and 206 pm, respectively. Assume the Born exponent n is 10
September 21, 2013 by ss01

Chemestry
The covalent compounds ethyl alcohol and dimethyl ether have the formula C2H6O. However, the alcohol melts at -117.3 degrees C and boils at 78.5 degrees C the ether melts at -138.5 degrees C and boils at -23.7 degrees C. How could differences in forces between molecules be ...
May 3, 2011 by Agustin

Chemestry
The covalent compounds ethyl alcohol and dimethyl ether have the formula C2H6O. However, the alcohol melts at -117.3 degrees C and boils at 78.5 degrees C the ether melts at -138.5 degrees C and boils at -23.7 degrees C. How could differences in forces between molecules be ...
May 3, 2011 by Agustin

Chemistry
Covalent bonds in a molecule absorb radiation in the IR region and vibrate at characteristic frequencies. a) The C---O bond absorbs radiation of wavelength 9.6um. What frequency (in s-1) corresponds to that wavelength? b) The H---Cl bond has a frequency of vibration of 8....
September 8, 2011 by Grace

biology
are van der waals forces and ionic bonds similar ? How ? and are there also any difference beetween them? please please please help my brain is spinning! thank you so much!
October 4, 2009 by rx

Chemistry
A solution is made by dissolving 1.0 mole of Na2SO4(ionic compound) into water to get 1.0L of solution. Give the conc of all the ions present in solution in M?
September 5, 2012 by Jason

Chemistry - HELP IGCSE
I have a chemistry exam tomorrow and I don't get the double bonding in covalent bonding I tried many websites , textbooks and other books and yet nothing worked Can someone please expain it clearely and in a simple way and please don't put any links for websites ca use ...
January 27, 2008 by AMY

Chemisty
Aluminum hydroxide forms a positively charged sol. Which of the following ionic substances should be most effective in coagulating the sol? NaCl CaCl2 Fe2(SO4)3 K3PO4
February 9, 2008 by Lauren

Chemistry
Help please am kind of confused on this problem, am mostly confused on what state the products will be. Find net ionic equation? I BELIEVE ITS BALANCED NOW. 2Al(s)+ 2CuCl3(aq)-> 2AlCl3(?)+ 2Cu(?)
October 4, 2010 by John

Science....HURRY! Please respond ASAP!!!!
0=X=0 The model above shows how an unidentified element, X, forms covalent bonds with oxygen. In which group on the periodic table does Element X most likely belong? A. Group 6 B. Group 12 C. Group 14 D. Group 18 I think it is either C or D. So X must be a four-valent atom. ...
March 21, 2007 by anonymous

Science
What is true about the element francium (Fr, atomic number 87)? Choose all that apply. A) It has seven valence electrons. B) It is likely to form ionic bonds. C) It is in Period 7. D) It is nonmetal. E) It is a metal. I think its B, C, E. Am I right? Please help.
May 9, 2014 by Sebby-Chan

chemistry
write the ionic equation and the balanced net-ionic equation for the following equations: Al2O3(s) + 6 HCl(aq) = 2 AlCl3(aq) + 3 H2O(l) And H2SO3(aq) + 2 KOH(aq) = K2SO3(aq) + 2 H2O and 2 HC2H3O2(aq) + Ca(OH)2(aq) = Ca(C2H3O2)2(aq) + 2 H2O and the final one is H2SO4(aq) + 2 ...
March 27, 2013 by Emaan

chem
Which of the following oxides is not highly ionic? BeO MgO CaO SrO BaO I believe is BeO because is an amphoteric oxide...may be I could be wrong please help me... You are right. BeO it is.
April 23, 2007 by nivi

Chemistry
The order of the boiling points for the hydrogen halides, except for HF, is HI > HBr > HCl. The reason for this order can be attributed to a) the relative covalent bond strengths. b) differences in hydrogen bonding. c) differences in dipole-dipole attractions. d) ...
January 31, 2012 by Ashley

chemistry
Why do molecular compounds have low melting points and low boiling points relative to ionic substances?
January 6, 2009 by Kate

Chemistry
You have KI and Pb(NO3)2 being mixture to give you an insoluble salt. What is the ionic equation per insoluble salt.
March 11, 2010 by Janelle

chemistry
What is the correct formula for an ionic compound that contains aluminum ions and sulfide ions? The answer is Al2S3. How did they get this answer?
September 9, 2010 by Danielle

Chemistry
write the complete and net ionic equation for: HCl+NaOH-->H20+NaCl HNO3+NaOH-->H20+NaNO3
May 3, 2011 by Betsie

chemistry
Is it true that the greater difference in electronegativity in an ionic compound, the greater attraction between the elements in the compound?
September 23, 2010 by jake

chemistry
What is the balanced net ionic equation for the reaction of dilute nitric acid with solid aluminum oxide? Frankly, I thought aluminum oxide was insoluble in almost anything except alkali. My CRC Handbook lists it soluble in alkali and organic solvents. The Merck Index lists it...
September 20, 2006 by ryan

chemistry
Which of the following statements about UV radiation is/are FALSE? (Select all that apply). ? a. UV B radiation covers a longer wavelength spectrum than UV A radiation. b. UV B radiation has sufficient energy to break any covalent bond. c. UV B radiation covers a frequency ...
September 21, 2008 by Jasmine

Chemistry
Can someone tell me when I add charges to my balancing equations? I know that you add charges when dealing ionic compounds (metal and nonmental), but what else? Acid?
February 4, 2009 by Chopsticks

Chemistry
Write a net ionic equation and calculate K for the reaction in aq between acidic acid and sodium hydroxide. Given Ka (acidic acid) = 1.8 x 10^-5
April 4, 2011 by Paul

chemistry
write the equation of the neutralization of sulfuric acid (H2SO4) with potassium hydroxide (KOH) and write the net ionic equation for the reaction
October 25, 2011 by Doss

chemistry
What is a special group of compounds that produce H+ ions when dissolved in water? A. Acids B. Ionic compounds C. Molecular compounds D. Polyatomic compounds I think A
November 10, 2012 by Keri

chemistry
Precipitation Reactions is the title of the section the problem is A solution of sodium hydroxide is added to a solution of iron (II) chloride. My Net ionic equation was OH- + Fe+2 -> Fe(OH)2 I want to know if my answer is correct and why OH in Fe(OH)2 is in parentheses ...
September 30, 2009 by Selenee

Science (Bonding)
Can someone show me how to draw a dot and cross diagram for kf, showing only the outer electron shells. I remember doing it and school and learning that it was a ionic bond if i remember correctly. Thankyou.
October 13, 2010 by paul

chemistry
Write a balanced net ionic equation for the following reactions in acid soln Hydrogen Peroxide reacts w/an aqueos soln of sodium hypochlorite to form oxygen and chlorine gas
November 18, 2011 by anonymous

chemistry
I need to derive a net ionic equation after balancing: NA2PO4 (2-) +HI =? what I have so far is NA2Po4 +2HI = 2NAI +H3PO4 I can't get any farther but the answer is HPO4 (2-) +H =H2PO4 can someone help me with the steps?
July 1, 2012 by Nancy

chemistry
the force holding together an ironic solid are much stronger thantheforces between particles in a molecular solid. how are these strong forces reflected in the properties of an ionic solid?
April 12, 2011 by jules

Chemistry
Calculate the osmolarity of a 2.0 10-3 M Na3PO4 solution. Na3PO4 is an ionic compound and produces an electrolytic solution.
October 29, 2011 by Chemistry Chick

Chemistry
write a net ionic equation for? 2KI + Pb(NO3)2 ==>2KNO3 + PbI2 This is my answer below 2I^- + NO3==>2No3 +I2^- can anyone tell me if this is the correct answer
June 10, 2009 by Aparicio

12 chemistry
Write the balanced chemical equation for each reaction: K2MnO4(aq)+H2SO4(aq)+NaHSO3(aq)= ? K2MnO4(aq)+NaOH(aq)+NaHSO3(aq)= ? start with the net ionic equations.
September 28, 2009 by izzy

chemistry
What are the probably products of... a) an aqueous solution of two ionic compounds b) a single compound c) two elements d) oxygen and a compound of carbon and hydrogen ?
March 16, 2010 by Bob

chemistry
Aqueous sulfuric acid is neutralized by aqueous potassium hydroxide. Express your answer as an ionic equation. Identify all of the phases in your answer.
October 12, 2010 by Missy

Chemistry HMWK HELP
what is the overall neutralization reaction equation and the net ionic equation for potassium hodrogen sulphate and sodium hydroxide. Need help with my hmwk. Thank you
December 23, 2010 by Tarkan

chemistry
What is the complete ionic equation for the double displacement reaction: CuNO3(aq) + K2S(aq)= what is the chemical name and formula of this chemical reaction? plsss. need help
October 3, 2012 by shay

Chem
Which of the following ionic compounds are soluble in water? Potassium perchlorate Lithium phosphate Lead nitrate Barium perchlorate Lead iodide
October 10, 2012 by Tyna

Chemistry
What is the ionic strength, I, of a solution at 25C containing 0.002 mol/L of BaSO4 and 0.001 mol/L of BaCl2? What is the activity coefficient of Ba2+ in this solution?
April 8, 2014 by Me

Chem Pre-Lab HELP!
Write the complete and net ionic equations for the following reactions. Be sure to indicate the states of the reaction products. 1) AgNO3(aq) + NaCl(aq) ----> 2) CaCl2(aq) + Na2SO4(aq) ----> 3) Pb(ClO4)2(aq) + NaOH(ag) ----> 4) (NH4)2SO4(aq) + BaCl2(aq) ---->
February 23, 2010 by Macey

chemistry
Heyaa,, I need help to solve this problem!1 Sodium chloride has a giant ionic structure, it has a melting point of 801c. How could you use this information to set up an alarm that sounds when the temperature in a reaction vessel gets above 800c? Thanks x
March 24, 2011 by Sharon

AP Chemistry
If you were to draw diagrams (such as that shown on the right) representing aqueous solutions of each of the following ionic compounds, how many anions would you show if the diagram contained six cations? (a) NiSO4, (b) Ca(NO3)2, (c) Na3PO4, (d) Al2(SO4)3
July 27, 2012 by Anonymous

Chemistry
I-I:150 F-F:160 C-C:350 H-H:435 (a) Calculate the energy of the I-F bond. Express your answer in units of kJ/mol. unanswered (b) Calculate the % ionic character of the I-F bond.
March 5, 2013 by Anonymous

Chemistry
Calcium carbonate is an ionic compound. Propose an explanation for the solubility of calcium carbonate.
March 3, 2008 by Anonymous

Chemistry
Calcium carbonate is an ionic compound. Propose an explanation for the solubility of calcium carbonate.
March 3, 2008 by Anonymous

chemistry help
Of the three forces, ionic, dipole- dipole, and London disperison forces, which is the strongest?
April 19, 2009 by chrissy

chem
Write a total ionic equation for the reaction (if any) of FeCl2 with Cu, and for the reaction (if any) of FeCl2 solution with Al
October 16, 2011 by Stef

Chemistry Bonding
Scandium Sulfide. Would i be correct in thinking that the bonding associated with this compound is Ionic. I think this as the two ions involved are oppositely charged? If im wrong could you please tell me why. Thanks so Much in Advance.
June 2, 2010 by Alice

Chemistry
Calculate the cohesive energy of potassium iodide (KI). The ionic radii of K+ and I−, are 152 pm and 206 pm, respectively. Assume the Born exponent n is 10. Assume a Madelung constant of 1.7. Please report your answer in kJ/mol.
September 22, 2013 by walter white

Chemistry
Which of the following electron configurations belongs to an atom that is most likely to be involved in a covalent bond? a. 1s^22s^22p^63s^2 b. 1s^22s^22p^6 c. 1s^22s^22p^63s^23p^3 d. 1s^22s^22p^63s^23p^6
June 5, 2013 by Anonymous

Chemistry
3Ca(CH3COO)2(aq) + 2H3PO4(aq) Ca3(PO4)2(aq) + 6CH3COOH (aq) reduce in net ionic form... how do you know what to separate? for example, how would i know to separate Ca and PO4 or to keep it together??
November 25, 2007 by Meena

chem
net ionic equation. Aqueous acetic acid (HC2H3O2) is neutralized by aqueous barium hydroxide. i got H^+(g) + OH^-(g) --> H_2O(l) but it is wrong. are my states of matter wrong?
October 13, 2012 by rebekah

physical chemistry
This question is about a lab called Heats of Ionic Reaction in my Physical Chemistry class. I need to know why there should be a large percentage error in deltaH4
March 4, 2013 by shelby

Chemistry
Please help me what is the ionic equation for AgNO3(aq) + Na3PO4(aq)? Not sure what I'm doing wrong here is what I have so far 3Na^+(aq) + PO_4^-3(aq) + 3Ag^+(aq) +3NO^3-(aq) --> 3Na^+(aq) + 3NO^3-(aq) + Ag_3PO_4(s)
June 21, 2013 by Ashley

chemistryyyy
(a) What is the pH of a 6.1 ✕ 10-5 M Ca(OH)2 solution? (b) What is the H3O+ concentration of the solution? I already know the answer to part A, I just don't understand how you could use that information to find the concentration of H30+ when its not in the ionic equation.
February 23, 2014 by Ana

Biochemistry
Hey guys! I think for 13 the answer is Amonium Sulfate cuz its cheap and the third one is cysteien cuz u get the S-S bonds? 13. To concentrate an enzyme without denaturing it, you would likely use... urea ammonium sulfate a detergent HCl NaOH PITC 14. The tertiary strucure of ...
February 3, 2009 by Andrea

Chemistry
A covalent bond forms when (1)two nuclei share electrons in order to achieve a complete octet of electrons (2) atoms form ions and then electrostatic forces of attraction bond the ions together. (3)repulsive forces between atoms are greater than the attractive forces (4) a ...
December 2, 2010 by Jazmin

Chemistry (Check)
Completion 1)Transition Metals 2)Stock 3) Many of the ___1____ have more one common ionic charge. These ions are named using either the ___2____ system or the __3____ naming system. 3. IUPAC
January 2, 2007 by Bryan

Chemistry
Suppose MgSe(a=545 pm) and SrSe (a=623 pm) both crystallize with a NaCl (rock salt) structure. Calculate the ionic radius of Sr2+ (Hint:Assume that the Se2- ions actually touch in MgSe.)
February 10, 2012 by Lindsey

Chemistry
What is the energy of a bond formed between a potassium (K+) cation and an iodide (I−) anion? The ionic radii of K+ and I−, are 152 pm and 206 pm, respectively. Assume the Born exponent n is 10. Please report your answer in joules. x=
September 19, 2013 by Urgent help

Chemistry
What is the energy of a bond formed between a potassium (K+) cation and an iodide (I−) anion? The ionic radii of K+ and I−, are 152 pm and 206 pm, respectively. Assume the Born exponent n is 10. Please report your answer in joules. x=
September 19, 2013 by Urgent help

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