10. State whether the representative particle in each of the following substances is an atom, a...
ULU 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, Fe,O (d) phosphorus, P. 1
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
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
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)...
Write the oxidation state of each atom in the following substances. Show all work. a) HOF b) HCO3^- c) H3PO4 d) FeSO3
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...
#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...
QUESTION 19 Each of the following substances contains polar bonds - CO, NO, 502. OF2. On which atom(s) in each molecule does the partial positive charge lie? Enter the symbol of the atom in the blank. NO
me following ground-state electron configurations corresponds to an atom that has the 10. Which of the following ground-state ele most negative value of the electron affinity? a) 1s 2s 2p 3s! b) 1s22s22p 3s 3p5 c) 1s 2s 2p 3s 3p2 d) 1s 2s 2p 3s 3p 3d5452 e) 1s 2s22p The element arsenic is in the same group as phosphorus. Which of the following is the formula of arsenic acid? a) H:As b) H3ASO2 c) HASO3 d) HAsO4 e)...
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 ...