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Chem Regents Reviewed June 2004. June 20 vs. H-H what does the line represent? coefficients no one wants this chemical reaction occurring on their car.

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Presentation on theme: "Chem Regents Reviewed June 2004. June 20 vs. H-H what does the line represent? coefficients no one wants this chemical reaction occurring on their car."— Presentation transcript:

1 Chem Regents Reviewed June 2004

2 June 20

3 vs. H-H what does the line represent? coefficients no one wants this chemical reaction occurring on their car staircase and group 18 nuclear charge refers to protons DaltonThomsonRutherfordBohrHeinsberg electron cloud e - p + # p > # e-

4 Stare at the moving dots, now stare at the “+” sign…do you observe anything unusual?

5 forms breaks down Table Q heat why do we chew our food? CHNOPS not the same as e- more gas like Table S

6 Stare at the moving dots, now stare at the “+” sign…do you observe anything unusual?

7 can only be stopped by thick cement Acid + Base look at functional group and use Table R observe product and use Table R common with all those found on table K acidsbasessalts metal atom becomes positive metal ion Table O products less mass e- exit the battery chemicals in battery

8 Stare one section of the image, will noticing off to the left and right…do you observe anything unusual?

9 what kind of bond? Substance on the left on Table H tend to form gases easier compare atoms individual subatomic particles average kinetic energy refers to temperature 6 valence means they will tend to gain 2e - Look for a group that tends to be -2 normal e - config vs. e - jumped out normal # e minus current # e (s)  (aq) reduce the atom ratios

10 Scan across the image…do you observe anything unusual?

11 If you want to make apple pie, you need to add more apples LEO 0 14 acid base Table N Table R Table Q and the suffix gases have the greatest entropy Table S

12 What do you notice in the image?

13 51) One reactant, multiple products 52) Conserve means to maintain or have no loss in 53) Dimensional analysis (picket fence) 54) GER 55) Start with nitrogen 56) Table M and focus on the fact that one starts with HNO 3 and the indicator 57) Table T 58) How many significant figures are there in 0.30? Commit to an answer, click to reveal clue, reconsider your answer

14 Identify the color of the dots between the squares?

15 59) What makes 22 Ne heavier than 20 Ne 60) (mass)(abundance) + (mass)(abundance) + (mass)(abundance) + …etc 61) Look at neon's atomic mass on the periodic table 62) What does Na and K have in common on the Periodic Table? 63) Break the bonds and add the element 64) Think about the conservation of matter, energy, and charge Commit to an answer, click to reveal clue, reconsider your answer

16 Are the lines bent or straight?

17 65) Use the mole equation on Table T 66) Note: the base has twice the amount of OH - as the acid has H + 67) Use Table E 68) Note: the naphthalene molecule is not “held together” very well 69) Recall “likes dissolve likes” 70)Divide the mass of the molecule by the mass of the empirical, next, multiple the empirical equation by this number. Commit to an answer, click to reveal clue, reconsider your answer

18 Stare at the black dot and notice the “electron cloud”?

19 72) Follow the instructions carefully 73) Follow the instructions carefully 74) Note how much can dissolve at 40 o C, now subtract 15g from that value 75) Notice the starting and ending temperature 76) Be sure to label P 1, V 1, T 1, P 2, V 2, T 2 and use combined equation 77) Use Table T equation 78) Use dimensional analysis (picket fence) and Table A Commit to an answer, click to reveal clue, reconsider your answer

20 Can you find the missing boy?

21 79) Think about effective collisions 80) Use the periodic table (start with H and O, finish with C) 81)Use the valence amount as seen on the periodic table, and then consider what type of ion it tends to form 82)Recall the (II) refers to the metal ion 83)Use ppm equation as seen on Table T 84)Compare #83 answer to the second sentence in the second paragraph of the reading 85) Odd question, just think common sense Commit to an answer, click to reveal clue, reconsider your answer


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