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- 1. Multiple ChoiceLithium carbonate is used for the treatment of bipolar disorder. It is on the World Health Organization's List of Essential Medicines, the most important medication needed in a basic health system. What is the IUPAC formula for lithium carbonate?Li2CO3LiCO3Li(CO3)2Li2(CO3)2
- 2. Multiple ChoiceArsenic pentafluoride is an extremely dangerous toxin, mainly poisoning liver cells. It has an apparent smell that is similar to vinyl chloride gas. What is the IUPAC name for arsenic pentafluoride?As5FAsF5AsF3As3F
- 3. Multiple ChoiceNaHSO4 is used primarily to lower pH. For technical-grade applications, it is used in metal finishing, cleaning products, and to lower the pH of water for effective chlorination, including swimming pools. What is the IUPAC name for NaHSO4?sodium hydrosulfatesodium hydrogen sulfitesodium hydrogen sulfatesodium hydrosulfite
- 4. Multiple Choice
Each of the rulers pictured has a different level of precision. What is the length indicated by the dotted line on each of the rulers read with the correct number of significant figures?Ruler A=2.55
Ruler B=2.5Ruler A=2.550
Ruler B=2.55Ruler A=2.55
Ruler B=2.550Ruler A=2.5
Ruler B=2.55 - 5. Multiple ChoiceWhat is the density of sample of material that has a mass of 4.93g and a volume (calculated via water displacement) of 12.025mL?0.409g/mL0.410g/mL0.4100g/mL0.4099g/mL
- 6. Multiple ChoiceThe metric prefix centi- is used to make convenient measurements that are smaller than the base unit. What is the factor that corresponds to the prefix centi-?1x10-61x10-11x10-31x10-2
- 7. Multiple ChoiceA student masses out 4.94g of a compound on one balance and then masses out 4.8g of a compound on a second balance. Using significant figures, what is the total mass of the compound measured out by the student.9.749.79.74010.
- 8. Multiple Choice0.08841 km is the equivalent distance to which of the following measurements?88.41 mm8.841x109 Gm8841 cm8.841x10-2cm
- 9. Multiple ChoiceWhen the element nitrogen forms ions it gains electrons. For every 1.00 mol of nitrogen that forms an ionic compound, how many moles of electrons does it gain?1.00 mol2.00 mol3.00 mol4.00 mol
- 10. Multiple ChoiceWhich of the following polyatomic ions is incorrectly paired with its name?H2PO41-
dihydrogen
phosphateH2SO41-
dihydrogen
sulfateHCO31-
hydrogen
carbonateH2PO31-
dihydrogen
phosphite - 11. Multiple ChoiceAl(NO3)3 is a strong oxidizing agent. It is used in tanning leather, antiperspirants, corrosion inhibitors, extraction of uranium, and petroleum refining. What is the IUPAC name of Al(NO3)3?aluminum nitritealuminum(III) nitratealuminum(I) nitratealuminum nitrate
- 12. Multiple ChoiceHow many atoms of magnesium are in 48.6g of magnesium?1.204x1024
atoms Mg1.20x1024
atoms Mg3.010x1023
atoms Mg3.01x1023
atoms Mg - 13. Multiple ChoiceHow many grams of sodium are in 3.3 mol of sodium?105g110g75.9g76g
- 14. Multiple ChoiceWhen adding hydrogen ions to a polyatomic ion, what happens to the charge of the original polyatomic ion?It becomes more positive.It becomes more negative.It depends on the ion.¯\_(ツ)_/¯
- 15. Multiple ChoiceWhich of the following general prefix/suffix combos indicates a polyatomic ion with the fewest oxygen?per-/-iteper-/-atehypo-/-itehypo-/-ate
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