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12 Problems on Introduction to Chemistry I - Assignment | CHE 1101, Assignments of Chemistry

Material Type: Assignment; Class: INTROD CHEMISTRY I; Subject: Chemistry; University: Appalachian State University; Term: Spring 2004;

Typology: Assignments

Pre 2010

Uploaded on 08/26/2009

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SII-22-oM
SI Times: Tue 7-8 in CAP Study Lounge, Wed 4-5 in CAP 307, and Thu 2-3 in CAP 307
Fill in the gaps in the following table assuming each column represents a neutral atom
235U 1&4W 98Tc ~.. pu0!« 48Ti
Symbol
92 74 43 94 22
Protons
143 110 55 150 26
Neutrons
92 74 43 94 22
Electrons
Mass no" 235 184 98 244 48
Using the grid technique, convert the following figures into the required units and report the
appropriate number of significant figures:
1145.7fttom
~
~
2. 0.570 qt to mi
-
-,) ~
hr
4
3
~
M
pf2

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SII-22-oM SI Times: Tue 7-8 in CAP Study Lounge, Wed 4-5 in CAP 307, and Thu 2-3 in CAP 307 Fill in the gaps in the following table assuming each column represents a neutral atom 235U (^) 1&4W 98Tc ~..0!« (^) pu Symbol 48Ti

Protons 92 74 43 94

Neutrons^143 110 55 150

Electrons 92 74 43 94

Mass no" 235 184 98 244

Using the grid technique, convert the following figures into the required units and report the appropriate number of significant figures:

1 145.7fttom

~ ~

  1. 0.570 qt to mi

-,) ~ hr 4 3 ~

M

~b,6X

kJ

~

6. 9.75 Ib!ft3 to g/mL

1 \ ~ 3

q,l'r Ib ~~&UL If. (.,I!'^ ':=:

Classify each of'the following as an physical or chemical change: (^7) PulveriZing rock salt p

  1. (^) Rusting iron c

9. Evaporation of aJcohot p

  1. Yellowing of'paper from age (^) c

1 Burning of wood c

  1. (^) Cracking an egg p
  2. $2.99/1b 10 dollars per kg