Give the ions present and their relative numbers in iron(II) phosphate. Select one: a. 3 Fe2+ and 2 PO43- b. 1 Fe2+ and 2 PO43- c. 2 Fe2+ and 3 PO43- d. 3 Fe3+ and 2 PO4-3
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- M 16 16 16 16 TTTTT 10 Chemical bond that forms between nonmetal atom and a metalloid atom. A. Ionic bond B. Covalent bond 11 Which element is the best conductor of electricity? A. Copper B. Gold C. Silver A. Tensile strength B. Malleability 12 Metals can be stretched or spun into thin wire. What is this property called? C. Conductivity D. Ductility A. Tensile strength B. Malleability C. Metallic bond D. Hydrogen bond Metals can be flattened and shaped by pounding or molding. What is this property 13 called? A. Flammability B. Silvery color 14 Which is NOT a property of most transition metals? A. Hydrogen B. Boron C. Conductivity D. Ductility A. Hydrogen B. Boron Which element's atoms will not form an octet, but will be stable in a covalent 15 compound with six valence electrons. D. Lead C. High density D. High melting point temperature C. Lithium D. Nitrogen Which element's atoms will not form an octet, but will be stable in a covalent 16 compound with two valence electrons. A. 4…2. What ions are present in the following solutions: a. Co(NO3)2 b. N22CO3 c. Ni(NO3)2 d. Na3PO47. How many moles of ions are produced if 1 mole of LizSO4 is dissolved in water? C. 3 a. 1 b. 2 d. 4 e. 5
- Which ion(s) are responsible for making water “hard”? a. Na+, Ca2+, and Mg2+ b. Ca2+ c. Mg2+ d. Ca2+ and Mg2+ e. Na+ f. None of these ions are responsible for making water "hard".Select the spectator ion(s) in the following reaction.3Ca(OH)2(aq) + 2Na3PO4(aq) → Ca3(PO4)2 (s) + 6NaOH (aq)a. Ca2+b. OH–c. Ca(OH)2d. Na+e. PO43–f. Na3PO4Write the following equations in words: a. 3 Ca + 2 AlCl3 -> 3 CaCl2 + 2 Al b. 4 FeS + 7 O2 -> 2 Fe2O3 + 4 SO2 c. Li2O + H2O -> 2 LiOH
- A sample of an oxide of vanadium weighing 4.589 g was reduced with hydrogen gas to form water and another oxide of vanadium weighing 3.782 g. The second oxide was reduced further with hydrogen gas until only 2.573 g of vanadium metal remained. a. Calculate the empirical formulas of the oxides b.write down the balanced reaction of the two reduction reactions above c. calculate the total mass of water in grams that form during the second reduction reaction7. The formula for plumbic sulfate isolone a. PbSO4 b. Pb2SO4 c. Pb(SO4)2 d. Pb(SO4)4 e. Pb4SO4 HIRD adqua 8. The products of the following reaction are a. CuS(s) + Mg04(aq) b. MgS(s) + CuO4(s) c. Cu(s) + MgSO4(aq) d. 2 O2(g) + CuMgS(s) e. There will be no reaction. c. 9.10 x 1025 molecules d. 3.01 x 1023 molecules e. 3.98 x 1021 molecules ROS Mg(s) + CuSO4(aq) → 9. How many molecules are in 0.500 g of acetaminophen, C8H9NO₂? a. 1.99 x 1021 molecules. b. 4.55 x 1025 molecules 10. How many H atoms are in 0.625 g of acetaminophen, C8H9NO₂? a. 3.76 x 1023 H atoms b. 3.27 x 1048 H atoms c. 2.49 x 1021 H atoms d. 1.12 x 1053 H atoms e. 2.24 x 1022 H atoms CE Ha 177)The coefficients needed to balance the following equation is: …. Cu + …HNO3 → …Cu(NO3)2 + …NO + …H2O Select one: A. 3, 8, 3, 2, 2 B. 6, 6, 6, 2, 2 C. 3, 8, 3, 2, 4 D. 6, 4, 3, 2, 2
- 43. Balance each of the following chemical equations. a. KO2(s) + H20(1) → KOH(aq)+ O2 (g) + H2O2 (aq) b. Fe2O3(s) + HNO3 (aq) → Fe(NO3),(aq) + H2O(1) c. NH3 (g) + O2 (g) → NO(g) + H,O(g) d. PCl; (1) + H20(1) → H3PO4 (aq) + HCl(g) e. C2H;OH(1) + O2 (g) → CO2 (g) + H2O(1) f. CaO(s) + C(s) → CaC2 (s) + CO2(g) g. MoS2 (s) + O2 (g) MoO3 (s) + SO2 (9) -> h. FECO3(s) + H2CO3(aq) → Fe(HCO3), (aq)What is the net ionic reaction for the reaction between Ca(NO3)2 and Na2CO3? A. Ca(NO3)2(aq) + Na2CO3(aq) → CaCO3(s) + 2NaNO3(aq) B. Ca2+(aq) + CO32-(aq) → CaCO3(s) C. NO3-(aq) + Na+(aq) → NaNO3(aq) D. No ReactionO science 24: Module 1 O bas ( 1 E Assignment Booklet 18 For questions 5 to 9, read each question carefully. Decide which of the choices BEST completes the statement or answers the question. Place your answer in the blank space given. 2 5. Iron oxide (FeO)) seperated into solid iron an example of a 1 (Fe (0)) A. simple composition reaction B. simple decomposition reaction C. combustion reaction D. neutralization reaction 6. In a simple composition reaction, A. one substance combines with another to form a salt and water B. two or more elements combine to form a compound C. a compound is broken down into two or more elements D. water is separated into hydroxgen gas and oxygen gas 7. fuel + oxygen → carbon dioxide + water vapour + energy This word equation is an example of a A. simple composition reaction B. simple decomposition reaction C. combustion reaction D. neutralization reaction A. simple composition reaction B. simple decomposition reaction C. combustion reaction D.…