a) acetone , C3H6O : molecule
b) Cobalt , Co : atom
c) magnetite , Fe2O3 : Formula unit
d) phosphorus , P4 : Formula unit
If formula unit is representative particle , it can not be seperated into individual representative particle because it is just whole number ratio of elements.
If atom or molecule is representative particle, it can be seperated into individual representative particles.
ULU 10. State whether the representative particle in each of the fol- lowing substances is an...
10. State whethe (u Jo ste whether the representative particle in each of the fol- substances is an atom, a formula unit, or a molecule. lowing substances is a (a) acetone, C3H2O (b) cobalt, Co (c) magnetite, Fe3O4 (d) phosphorus, P4
10. State whether the representative particle in each of the following substances is an atom, a formula unit, or a molecule. a. acetone, cHo b. cobalt, Co c. magnetite, Pe0 d. phosphorus, P
LEEP 12. Use the periodic table to predict an ionic charge for each of the following metal ions. (a) Na ion (b) Ba ion (o Ga ion (d) Pb ion 10. State whether the representative particle in each of the fol- lowing substances is an atom, a formula unit, or a molecule. (a) acetone, CHO (b) cobalt, Co (d magnetite, FeO, (d) phosphorus, P: 6. Predict whether each of the following is held together by ionic or covalent bonds. (a)...
1. State whether the representative particle in each of the following substances is an atom, a molecule, or a formula unit: (a) uranium, U (b) fluorine, Fz (c) uranium hexafluoride, UF. (d) hydrogen fluoride, HF
d. H.CO; and NaHCO3 pilot ict whether each of the following pairs of substances unction as a buffer system in aqueous solution. 10-108 Predict whether each could function as a buffer system a. HNO, and HCI b. HNO, and KNO, C. NaC,H,O, and KC,H,O, d. HC,H,O, and NaNO3 concendLIUI 14. A solution is 0.0030 M in H2PO4 ion. What is this ion concentration in mEq/L? c. pull per formula unit, are produced when d. ethanol, a nonell 10-131 How many...
PC 101 Homework 02 Given each compound or molecule, first state whether each atom is a metal or nonmetal. Then, using your electronegativity chart, provide the electronegativity (En) values for each atom and then mathematically predict whether the bond between the atoms will be an ionic bond, a polar covalent bond, or a nonpolar covalent bond. Compound/Molecule 1st Atom (metal or nonmetal) 1st atom’s En Value 2nd Atom (metal or nonmetal) 2nd Atom’s En Value En Difference Bond Type H-Cl ...
#3 please! te whether the concentration of each of the following substances was increased, ecreased, or unaffected when the conc. hydrochloric acid was added to cobalt chlo- ride solution. Co(H20)e2+ CoCl?- , Cl- 3. (a) What did you observe when ammonium chloride was added to cobalt chloride solution? It sunKねtne botlom and turud thu test tube cold (b) What did you observe when this mixture was heated? The NHcI turned piue in nect (e) Explain why heating the mixture caused...
10-10 Determine the hydroxyl radical concentration required to remove each of the fol lowing compounds using an advanced Comment on the feasibility of removing each of the compounds under the given conditions oxidation process with a contact time of 10 s Concentration, μg/L Water A Water B Compound Chlorobenzene Chloroethene TCE Toluene Influent 100 100 100 100 Effluent Influent Effluent 120 150 180 200 7 5 10 15 5 1. Problem 10-10 (both waters note, you have a single unit,...
10. For each of the following P-values, state whether the result is statistically significant at the .10 level: a) P-.08 b) P.15 c) P .01 d) P .50
Q1) For each of the following compounds, determine the formal oxidation state of the transition metal and the corresponding number of d electrons. State whether each one is likely to be stable enough to be characterized. (1) [Re(CO)5] (2) [HFe(CO)4]- (3) ((ŋ6-C5H5)2Fe) (4) ((ŋ6-C6H6)2Cr) (5) ((ŋ5-C5H5)ZrCl(OCH3) (6) (IrCl(PPh3)3) (7) (Mo(CO)3(PPh3)3) (8) (Fe(CO)4(C2H4)) (9) (W(CO)5Cl)- (10) Ni(CO)4)Q2) Use the 18-electron rule to predict the number of carbonyl ligands, n, in each of the following complexes: (1) [Cr(CO)n] (2) [Fe(CO)n(PPh3)2)] (3) [Mo(CO)n(PMe3)3] ...