1. By: Isabel Roman

2. Atomic Theory Naming and Formula Writing Ionic Bonding and Metals StoichiometryEnergetics 100 200 300 400 500

3. He 2 4.00 Label this image: Atomic Number Atomic Symbol Atomic Mass HOME

4. Fill in the short configuration: Element# of Electrons Long ConfigurationShort Configurations Mn25

5. Fill in this chart: MEASUREMENTVARIABLEUNITS (or value, if constant) Speed of lightsC Wavelengthλ Frequencyf EnergyE Planck’s constanth M J HOME

6. A beta particle strikes an atom of Gold- 197, which then emits an alpha particle. What is the product nuclide? Pt 193 78 Au 197 79 β 0 -1e + Hg 197 80 He 4 2 +

7. Answer: HOME

8. Fill in this chart: Name of Ionic Compound CationAnionFormula Potassium Phosphate

9. HOME Name the following molecular compound: Sulfur Hexachloride

10. HOME law of definite proportions Define: the law of definite proportions In a sample of any chemical compound, the mass of the elements are always in the same proportions.

11. HOME

12. Copper (II) Perchlorate

13. HOME valence electrons Define: valence electrons The outermost electrons, the electrons in the highest energy shell.

14. HOME What is the formula for: strontium

15. HOME How many electrons must be gained by each of the following atoms to achieve a stable electron configuration? a)N b)Cl c)S d)P

16. HOME Write the electron dot configuration for the compound formed by aluminum and oxygen. ···· ···· ···· ···· ···· ···· ···· ···· ···· ···· ···· ····

17. Write the formula for this compound: Magnesium Sulfate  HOME

18. How many grams of water can be produced from 88.0g of calcium hydroxide?

19. HOME

21. How many molecules of aluminum chloride are required to produce 75.0g aluminum nitrate?

22. HOME How many silver chloride molecules would be produced at the same time as 8.67 moles of aluminum nitrate?

23. A reaction had an enthalpy, ∆H, of -141.2 kJ/moles.  It is endothermic or exothermic? Explain. ○ This reaction is exothermic because it is release energy to its surrounding. HOME

24. What is the name of the phase change from solid directly to gas?  Sublimation HOME

25. A 35g gold sample of Element X gives off 8500J as it cool from 56°C to 34°C. Calculate the specific heat of the Element X, assuming that it does not undergo any phase changes. HOME

26. Use Hess’s Law to determine the value of ∆H for reaction D. HOME -514.25 kJ

27. Water has a melting point of 100°C. Solid water has a specific heat of 2.06 J/g°C. Liquid water has a specific heat of 4.18 J/g°C. Gaseous water has a specific heat of 1.7 J/g°C. The Heat of Vaporization of water is 2260 J/g. How much energy is need to raise the temperature of a 60.5g sample of water from 55°C to 115°C? HOME a b c d 100 0 14965.8 J