chem lab exam ( God will have to help me)

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experiment 2: Density Measurements

finding density through 2 methods mass with balances and volume with water displacement

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experiment 3: chemical and physical changes

Used HCI to dissolve NaHCO through chemical change 

Na + ended up being present 

Cl-  ended up being present

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experiment 4: A series of chemical changes

copper to copper compounds back to copper then ammomnia tes is passed Cu2+

4
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experiment 5: the formula of a metal oxide

zinc is dissolved to form a nitrate, liquid evaporated then converted to oxide through heating 

5
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experiment 6: concentration: molarity

NaCl in different test tubes tested for molarity through conductance  

6
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experiment 7: conversion of a carbonate to a chloride

sodium carbonate manipulated for stoichiometry

7
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experiment 8: Quantitative measurement of conductance 

conductance of multiple solutions

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experiment 9: intro to redox reactions

observing chemical changes through manipulating electrons

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experiment 10: Gas laws 

Boyles law and determine the molar mass of a gas