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Chemistry 09/27/2016

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Christopher Horras

on 27 September 2016

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Transcript of Chemistry 09/27/2016

Chemistry
September 27th, 2016
Bell Ringer
Physical Properties and Changes
Class Activity 15
1) Determine if each of the following is an element, compound, molecule, or mixture:

a) Sand
b) HCl (hydrochloric acid)
c) KI (potassium iodide)
d) Tungsten metal

2) Draw a model of the isotope Carbon-14

3) Draw models for the ions likely formed for the following elements:

a) H
b) Li
c) Mg
d) S
e) Br

Chemical Properties and Changes
1) Chemical properties describe how matter reacts or changes chemically in relation to other matter.

2) Chemical identity of the substance changes.
Combustion
Corrosion
Toxicity
1) Determine if each of the following is a physical or chemical property of matter:

a) Melting Point
b) Corrosive
c) Color
d) Freezing Point
e) Reactivity with Water

2) Determine if each of the following is a physical or chemical change:

a) Water Freezes
b) Iron Rusts
c) Wood Burns
d) Salt Dissolves

Physical changes do not change the chemical identity of the substance.
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