Double Distilled

Need help please! due in 45 minutes! Urgent?
1) An example of a chemical change process in a chemical industry is
a) crude oil fractionally distilled in an oil refinery
b) recovery of salt by evaporation of water from a salt lake
c) lime added to water to produce calcium hydroxide (slaked lime)
d) nitrogen condensed from air for use in the Haber process
2) The substance that would be expected to form a precipitate as a product of a chemical reaction is
a) silver hydroxide
b) calcium sulfide
c) sodium phosphate
d) lithium chloride
3) Classify the following reactions:
Mg(OH)2 + 2HNO3 --> Mg(NO3)2 + 2H2O
a) single replacement
b) decomposition
c) combustion
d) double replacement
1) C - because lime added to water is chemically changing to produce calcium hydroxide. all others are physical changes
2) A - all hydroxides are insoluble with the exception of alkali metal cations, and NH4+, Ca2+, Sr2+, and Ba2+
3) D - because reactant+compound+Reactant+compund=Product Compound+Product Compound
Cheaper brands dominate Miss. liquor sales
Despite a downtrodden economy and jobless rates in double-digits, Mississippians continued to reach for the wine and spirits in 2009.
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![]() Australian Oil Eucalyptus Pure 4oz Double Distilled US $4.99
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GABELS Double Distilled Witch Hazel Astringent 16 oz/473ml List Price: $9.50 Sale Price: $7.41 |
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Gabels witch hazel is a refreshing lotion which helps to gently clean and tone the skin. |


US $4.99







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