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November 28, 2014

Search: ionic or covalent

Number of results: 1,543

chem
Consider the reaction that occurs on mixing 50.0 mL of 0.560 MNaHCO3 and 50.0 mL of 0.400 M NaOH at25oC. (a) Write a balanced net ionic equation for thereaction. (b) What is the pH of the resulting solution?
March 29, 2011 by pal

cheistry
Write a net ionic equation for the overall reaction that occurs when aqueous solutions of hydrosulfuric acid and potassium hydroxide are combined. Assume excess base.
November 17, 2011 by savannah

chemistry
draw a diagram showing the arrangement of the valency electrons in one molecule of the covalent compound selenium chloride. use x to represent an electron from an atom of selenium. use o to represent an electron from an atom of chlorine
November 22, 2011 by sahar

Chemistry
Calculate the equilibrium concentration of all ionic aqueous species in a solution containing 1.30 M HCl and 4.0 M C6H5OH (phenol, Ka=1.6 x 10^-10). What is the pH of the solution?
April 19, 2008 by Gloria

Chemistry
Considering the effect of ionic strength, calculate the solubility of BaSO4 in 0.100 mol/L NaCl solution Ksp of BaSO4 = 1.1 X 10^-10
October 20, 2008 by Patel

science
when ionic compounds form, the ions come together in a way that balances out the charges on the ions. true or false?
November 17, 2008 by Taylor

science grade 10 chemistry
do you know any website that helps explain how the naming of ionic compounds and etc work, and like naming acids. please help.
January 3, 2010 by shaje

Chemistry
Write the net ionic equation for the hydrolysis reaction that occurs when Ba(CH3COO)2 is dissolved in water. CH3COO- + H2O <-> CH3COOH + OH- ?
April 27, 2010 by sh

Gen Chem
What are the net ionic equations for: 1. Potassium Fluoride and Ammonium Chloride and 2. Sodium Hydrogen Sulfite and Potassium Cyanide?
March 28, 2011 by Ann

Chemistry
Enter the net ionic equation, including phases, for the reaction og AgNO3 (aq) with Ba(OH)2 (aq). I have Ag+ +OH- =AgOH but I dont know how to determine the phases.
March 18, 2011 by Allison

Chemistry
Consider the reaction when aqueous solutions of manganese(II) sulfate and barium bromide are combined. The net ionic equation for this reaction is:???
November 4, 2012 by Kristyn

Chemistry
need the answers to the formulas for the Ionic Compound: DiAmmonium Chromate Also I need the name of the following formula Sr(MnO4)2
October 28, 2014 by Theresa

science Help 911!!
Which of the following would likely be part of an ionic bond? Choose two that would apply. A.K+1 B.Cl2 C.F-1 D.Ne Are the answers B,D?
November 14, 2014 by blue

biology
Name a covalent bond of amylose that can become hydrolyzed? Name a cvalent bond of Casein that can become hydrolyzed?
March 22, 2012 by Ashley

Chemistry
I think I have identified these right but I am confused on the why part of my question. Am I on the right track or should I read some more? Are these organic? If they are why? KMnO4-no CH3Oh-yes C6H6-yes PdCI2-no Ch3CO2H-yes Because they are carbon compounds, have covalent ...
February 9, 2008 by Sara

Biochemistry
Nicotine is a small molecule produced by the tobacco plant Nicotiana tabacum. Nicotine is produced by the plant to discourage herbivores. In low doses, such as those experienced by tobacco users, it is a stimulant that leads to mild euphoria. In high doses, it acts as a potent...
March 31, 2013 by qwerty

chemistry
IONIC COMPOUNDS CONDUCT ELECTRICITY EXCEPT WHEN THEY ARE A. IN WATER SOLUTION B. LIQUID C. BILNARY COMPOUNDS D. SOLID I will be happy to critique your thinking on this.
January 12, 2007 by Darius Graham

Chem
what kind of intermolec forces are in NH4Cl i thought it was london dispersion, dipole dipole, and hydrogen bonding and nottttt ionic. what am i doing wrong?
November 24, 2008 by Brian

chemistry
1. How do you know that NO2 (with a negative charge 1) is an anion and not ionic compound? 2. What are the SI standard units for length and mass? Why ins't there a standard SI unit for volume?
January 26, 2009 by becca -- got final exam tomorrow help!

Chemistry
Balance the net ionic equation I− + NO− 2 ! NO + I2 (in acidic solution). What is the sum of the coefficients? Use H+ rather than H3O+ where appropriate. 1. 13 2. 15 3. 17 4. 11 5. 19
October 20, 2010 by Jeremy

science 6th grade
Statement: Most compounds that produce this in aqueous solution are ionic. Does this statement refer to an acid or a base or both?
January 2, 2011 by Al

chemistry
complete and balance the following molecular equations and then write net ionic equations for each reaction. BaCl2(aq) + K2SO4(aq) KNO3(aq) + HCl(aq)
June 21, 2011 by chelsea

Chemistry
Write the net ionic equation for the reaction that takes place between a solution of magnesium chloride and a solution of sodium hydroxide.
June 26, 2012 by Unknown

chemistry
Give the number of each type of ion present in each of the ionic compounds formed from the combination of the indicated metal and acetate, {\rm C_2H_3O_2}^-, ion.
September 25, 2012 by Morgan

Chemistry
A beaker of nitric acid is neutralized with calcium hydroxide. Write a balanced molecular equation and a net ionic equation for his reaction
March 4, 2013 by Amee

chemistry
did i do this correctly? Instructions: For the following reactions, identify the precipitate and write its balancet net ionic equation: H2SO4+BaCl2->HCl+BaSO4 answer: 2SO4+Ba->Ba(SO4)2
January 9, 2008 by jasmine

chemistry
Predict the prdeucts of the following acid/base and precipitation reactions and balance the equations. Remeber to indicate (s), (l) or (aq Q1. HCI(aq) + Mg(OH)2(aq)----> Q2. Pb(NO3)2(aq)+ Na2S (aq)---> Q3. write the ionic equation for question 2.
March 2, 2014 by Kay

chemistry
In which of the following pairs of ionic compounds are both members of the pair soluble in water? a.AgNO3 and AgCl b.LiOH and Li2SO4 c.PbSO4 and BaCO3 d.NH4I and Sn3(PO4)2
March 23, 2014 by julia

Chemistry 101
Can someone pleas help I have this assignment and the only question I cannot figure out is to describe the hybridization of all the covalent bonds in oxalic acid? and label those bonds as sigma or pi bonds? I have determine that oxilic acid formula is HO_2CCO_2H and its ...
June 10, 2009 by Gweedo

CHEMISTRY
Give the NAMES and FORMULAS for the following COVALENT (nonmetallic) compounds. 1. Sulfur hexafluoride 2. Tetraphosphorus heptasulfide 3. Silicon tetrachloride 4.Disulfur decafluroine moniodide 5. Iodine pentafluoride 6. Tetranitrogen trisulfide 7. Diarsenic trisulfide 8. ...
February 23, 2012 by helen

Chemistry
Write the molecular equation and the net ionic equation for each of the following aqueous reactions. Ca(NO3)2 + K2CO3 FeSO4 + NaCl NiCl2 + NaBr
September 30, 2008 by Brittany

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

science
What is true about the element francium(Fr,atomic number 87)? Choose all that apply. a. it has 7 valence electrons b. it is likely to form ionic bonds c. it is a nonmetal d. it is in period 7 e. it is a metal Is the answer a,d,e?
October 21, 2014 by Anonymous

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

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

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
Which process could be used to calculate the bond energy for the covalent bond X-Y by dividing its ∆H by n? A XYn(g) → X(g) + nY(g) B 2XYn (g) → 2XYn-1(g) + Y2(g) C Y(g) + XYn-1(g) → XYn(g) D nXY(g) → nX(g) + n/2 Y2(g)
September 21, 2014 by Ariana

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
Use Lewis diagrams to show how electrons are shared to form covalent bonds in compounds with the following atoms. Write the formulas a) one carbon atom and four chlorine atoms i think i would share each of the four electrons of carbon with the chlorine atom
October 4, 2014 by Anonymous

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

Physical science
Give one word or term of the following descriptions 1. A reaction that results in the formation of an insoluble salt 2.the process in which ions whithin an ionic substance are separated 3.the positive ion 4.a proton acceptor
September 10, 2014 by Plz help

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

science
How do I do the following? Write the net ionic equation for the following molecular equation. 3 CoCl2(aq) + 2 Na3PO4(aq) Co3(PO4)2(s) + 6 NaCl(aq)
October 29, 2014 by Morgan

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

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