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Semester I Review. How many sig-figs are found in each number? 0.345 3005 300 3.002 0.00023.

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Presentation on theme: "Semester I Review. How many sig-figs are found in each number? 0.345 3005 300 3.002 0.00023."— Presentation transcript:

1 Semester I Review

2 How many sig-figs are found in each number?

3 Semester I Review Round each number to three sig-figs

4 Semester I Review Which of the following is a mixture. Pure water Clean air Iron (II) oxide Salt water Carbon dioxide

5 Semester I Review Which of the following is a chemical change. Cutting paper Boiling water Rusting iron Burning gasoline

6 SymbolMass #Atomic #ProtonsNeutronsElectrons X - ___1015 Y Z - ___5625 Complete the table using the given numbers

7 Semester I Review Calculate the average atomic mass given the following data: element Y has three isotopes 35.0% = 23.5 amu, 55.0% = 25.0 amu and 10.0% = 26.0 amu.

8 Semester I Review 25.0 grams of a given metal displaces 44.2 mL of water; what is the density of the metal?

9 Semester I Review What did each scientist contribute to the development of the modern atom. Dalton Thomson Rutherford Milliken

10 Trial #MeasurementTrue Value = Determine if the data below is accurate, precise, both, or neither Calculate the percent error using the average of the measurements.

11 Semester I Review 1. The splitting of a nucleus is known as ________. 2. The combining of two small nuclei to form a larger one is known as __________. 3. Give the formula of an alpha particle and beta particle.

12 Semester I Review 1. Decay of polonium-218 by alpha ( ) emission. 2. Decay of carbon – 14 by beta emission 3. Decay of Thorium by an electron capture

13 Semester I Review 1.The half-life of phosphorous-30 is 2.5 min. If you start with 55 g of phosphorus-30, how many grams would remain after 27.5 min?

14 Semester I Review Calculate the specific heat of an unknown metal, given that 25.0g of the metal lost 3570 J of energy during a temperature change from o C to 25.0 o C

15 Semester I Review Identify each of the letters on the graph and explain what is occurring. C D E F G

16 Semester I Review Label the solid, liquid, and gas regions on the graph. Label the triple point and critical point At 600 o C and 90 atm, what phase is yummygum in?

17 Give the formula for the following compounds 1)iron (II) arsenide 2)lead (II) sulfate 3)lead (IV) hydroxide 4)copper (II) acetate 5)beryllium chloride 6)ammonium chromate 7)silver oxide 8)potassium sulfide Semester I Review

18 Give the name of the following compounds 1)NaBr 2)Sc(OH) 3 3)V 2 (SO 4 ) 3 4)NH 4 F 5)CaCO 3 6)NiPO 4 7)Li 2 SO 3 8)Zn 3 P 2 9)Sr(C 2 H 3 O 2 ) 2 10)Cu 2 O Semester I Review

19 Name the compounds H 2 SO 3 H 2 S H 3 PO 4 HCN H 3 P HBr HClO Semester I Review

20 Give the formula for the following compounds hydrofluoric acid hydroselenic acid carbonic acid nitrous acid sulfuric acid hydrobromic acid Chlorous acid Semester I Review

21 Antimony tribromide Silicon difluoride Tetracarbon octahydride Dinitrogen monoxide Pentaphosphorous decoxide Sulfur hexachloride Semester I Review

22 P 2 O 5 SO 2 NO 2 AsCl 3 P 4 H 8 Semester I Review

23 Balance and classify the reactions ____ C 8 H 18 + ____ O 2 ____ CO 2 + ____ H 2 O ____ FeCl 3 + ____ NaOH ____ Fe(OH) 3 + ____NaCl ____ P + ____O 2 ____P 2 O 5 ____ Na + ____ H 2 O ____ NaOH + ____H 2 ____ Ag 2 O ____ Ag + ____O 2 ____ S 8 + ____O 2 ____ SO 3 Semester I Review


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