Chem Regents Reviewed

June 2004

June 20

vs.

H-Hwhat does

the line represent?

𝑝𝑎𝑟𝑡h𝑤 𝑜𝑙𝑒

→1658

coefficients

no one wants this chemical

reaction occurring on

their car

staircase and group 18

nuclear charge refers

to protons

Dalton

Thomson

Rutherford

Bohr

Heinsberg

electron cloud

e- p+

#p > #e-

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

forms

Dbreaks down

Table Q

heat

why do we chew our

food?

CHNOPSnot the same

as

e-e-

e-

e-

e-

more gas like

Table S

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

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

acids

bases

salts

metal atom becomes positive

metal ion

Table O

products less mass

e- exit the battery

chemicals in battery

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

unusual?

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) D (aq)

reduce the atom ratios

Scan across the image…do you observe anything unusual?

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

What do you notice in the image?

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 HNO3 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

Identify the color of the dots between the squares?

59) What makes 22Ne heavier than 20Ne

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

Are the lines bent or straight?

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

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

72) Follow the instructions carefully

73) Follow the instructions carefully

74) Note how much can dissolve at 40oC, now subtract 15g from that

value

75) Notice the starting and ending temperature

76) Be sure to label P1, V1, T1, P2, V2, T2 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

Can you find the missing boy?

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