Practice chem final

Practice chem final - Exam 1 1) Describe the following as...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Exam 1 1) Describe the following as either a physical or chemical change: a- Dissolving salt in water is an example of which type of change?(__ ____ __) b- Frozen orange juice is reconstituted by adding water to it (_ _ ________________) c- Chopping timber for heating purpose of houses (_ _ ________________) d- Burning term papers after finishing the semester (_________________) e- Metallic bridge got rusted after exposure to lot of salt (__ _ __________) 2) Convert the following number in scientific notation with the requested number of significant figures: a- 0.00034512= (2 significant figures). b. 1240062=(5 signifiant figures). c. 455.01=(2 signifiant figures). d. 0.00000008765= (3 significant figures). e. 31 × 152.3=
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
(4. significant figures). 3) A thermometer reading of a patient was 102.8 o F. Convert this temperature to degree Celsius ( o C) and Kelvin (K)? 4) Name the following compounds: a. P 2 O 3 : b. B(OH) 3: c. FeCl 2 : d. AgNO 3 : Na 2 CO 3 .3H 2 O: 5) Write the formula of the following compounds: a. Hydrobromic acid : b. Calcium sulfide: c. Zinc(II) chloride tetrahydrate: d. Lead(II) carbonate: e. Dinitrogen monoxide: 6) Fill the following table with the atomic and mass numbers ( use periodic table provided) and number of protons, electrons, and neutrons of the following atom
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/12/2010 for the course CHEM 110-102 taught by Professor Dr.jabbour during the Fall '09 term at Butler CCC.

Page1 / 15

Practice chem final - Exam 1 1) Describe the following as...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online