exam 1

Question 1

Us to metric
cm, kg, l

Answer 1

1 in- 2.54 cm
1.057 qt- 1 liter
2.2 lb- 1 Kg

Question 2

metric conversions

Answer 2

giga, mega, kilo, 1, deci, centi, mili, micro, nano

Question 3

*f, *c, k conversions

Answer 3

f-c f-32/1.8
c-k c+273.15

Question 4

J, CAl, cal conversions

Answer 4

1 cal- 4.184 j
1 CAl- 1000 cal

Question 5

Avogadro’s number

Answer 5

6.022*10^23

Question 6

density

Answer 6

mass/volume

Question 7

SI units
volume, length, mass, temp, energy

Answer 7

v-liters l-meter m-Kg
t-kelvins e-joul

Question 8

dimensional analysis

Question 9

characteristics of protons, neutrons, and electrons

Answer 9

element charge weight
p 1+ 1kg
n 0 1kg
e 1- 0

Question 10

radiation scientists
Becquerel, Curie

Answer 10

Becquerel- discovered our radiation- uranic rays- put uranium on a photographic paper
Curie- found new element (PO)- changed name to ray activity or radio activity, discovered (RA)- radiation is not lie a chemical reaction- first person to win two Nobel prizes- developed the x-ray

Question 11

radiation measurements
curie, becquerel, sievert, millirem

Answer 11

curie (c)- disintegration per
second
becquerel (Bq)- SI unit for
measuring disintegrations
sievert (sv)- measures biological
radiation
millirem- equal to 100,000sv

Question 12

deference between emission and bombardment

Question 13

prefixes of compounds

Answer 13

mono, di, tri, tetra, penta, hexa, hepta, octa, nona, deca

Question 14

VSEPR stands for

Answer 14

valence shell electron pair repulsion

Question 15

shapes of vsepr

Answer 15

tetrahedral 109.5
pyramidal less than 109.5
bent less than 109.5
triagonal planer 120
linear 180

Question 16

C-H
same elements

Answer 16

nonpolar