Chemistry Bell RingerChemistry Bell Ringer

Take out your hmwk (reverse % Take out your hmwk (reverse % comp) I’ll collect itcomp) I’ll collect it

Keep out your review sheets Keep out your review sheets they are the first answer to the they are the first answer to the review gamereview game

Get a board and markerGet a board and marker We are compressing two We are compressing two

classes into one . . .get readyclasses into one . . .get ready

Chemistry Review Chemistry Review GameGame

Eureeka!Eureeka!

Review Packet answersReview Packet answers

1.1. AA

2.2. BB

3.3. CC

4.4. AA

5.5. DD

6.6. CC

6. Write the following in 6. Write the following in scientific notation:scientific notation:

24388243880.046900.04690

8. How many significant digits 8. How many significant digits in the following:in the following:

234234 25002500 0.00340.0034 12.0012.00 0.010100.01010 2.5 x 102.5 x 1044

14. Give the answers with the 14. Give the answers with the correct number of sig. figs.correct number of sig. figs.

432.2 + 24.04432.2 + 24.04 28.9 + 300.25 + 28.9 + 300.25 +

2.9452.945 54 x 82654 x 826 (1.2 x 10(1.2 x 1066)(3.25 x 10)(3.25 x 1044))

18. The results of an 18. The results of an experiment show the experiment show the

Heat of Fusion to be 5.56 Heat of Fusion to be 5.56 kJ/g. The correct answer kJ/g. The correct answer

is 4.95 kJ/g. Calculate is 4.95 kJ/g. Calculate the % Error.the % Error.

19. How many grams of 19. How many grams of solute must be in 2-L solute must be in 2-L

of water to have a of water to have a concentration of 8-concentration of 8-

ppm?ppm?

20. How many grams of 20. How many grams of ammonia chloride ammonia chloride

(g.m.f.=53.3g) are in (g.m.f.=53.3g) are in 0.500-L of a 2.00-M 0.500-L of a 2.00-M

solution?solution?

21. What is the Molarity 21. What is the Molarity of Hof H22SOSO44 if 0.25-L of if 0.25-L of

solution contains 0.75 solution contains 0.75 moles?moles?

22. What is the % comp 22. What is the % comp of potassium inof potassium in

KHCOKHCO33??

23. What is the 23. What is the correct formula for correct formula for Nitrogen II Oxide?Nitrogen II Oxide?

24.Give an example of 24.Give an example of another compound another compound that would have the that would have the empirical formula of empirical formula of

NONO

25. How many 25. How many moles are in 29 g moles are in 29 g

of NaCl?of NaCl?

26. In which Group do 26. In which Group do elements form oxides elements form oxides

with the general with the general formula Mformula M22OO33??

27. Given the balanced equation:27. Given the balanced equation:NaOH + HCl NaOH + HCl NaCl + H NaCl + H22OO

What is the total number of What is the total number of grams of water produced when grams of water produced when 116-g of NaCl is formed?116-g of NaCl is formed?

That is the end of the gameThat is the end of the game

Tally your pointsTally your points Work on your review sheetsWork on your review sheets