|Exp 4: Physical & chemical substance Properties |Lab Section: |
Data Table:
Substance | glossiness |Odor |Effect of Heat |Cold pee | fervent H2O |Litmus Test |Dilute HCl |Dilute NaOH | |Mg
| gold Or Gray
| scentless |Forms a white powder |MgO+H2 |Mg(OH2)+H2 | no-account |MgCL2+H2 |MgOH+Na | |Cu
|
Orange | non-aromatic |Glows dull red |NO REACTION |Mg(OH2)+H2 |Blue |No Reaction |Cu(OH)2+Na | |Zn
|
Bluish-white |Odorless |Turns yellow |No Reaction |ZnO+H2 |Blue |ZnCL2+H2 |Na+Zn(OH)2 | |MgO
|
livid |Odorless | |Mg(OH)2) |Mg(OH)2) |Blue |MgCL2+H2O |MgOH+NaO | |CuCO3
|
Green |Odorless |Forms pig Oxide & Carbon dioxide gas |CO2+Ca(OH) 2 |CO2+Ca(OH) 2 |Green |CuCl2+H2CO3 |CuOH+NaCO3 | |Cu(NO3)2
|
Blue crystals |S demoralise | | |Cu2+NO3+H2O |Blue |CuCl2+2HNO3 |CuOh2+NaNO3 | |NaCl
|White
|Odorless |Melts & become clear liquid | |Na+Cl+H2O |No Color |No Reaction |NaCl+NaOH | |
Conclusion:
The economic consumption for this experiment was to combine unalike chemicals to see if a corporeal or a chemical change occurred.
A somatogenic change happens when the substance changes in appearance yet maintains its corporal and chemical properties. A chemical change occurs when a different substance forms with newly formed physical and chemical properties. The scratch substance was magnesium. sooner it was heated, it was a shiny silver strip. It was smooth, malleable, and flat. When heated, a bright light was emitted. The new substance magnesium oxide was white, chalky, brittle, and dull. The light given off and the new substance formed both indicate a chemical change.
The second substance was copper. Before we heated it, it was shiny, round, smooth, and a copper color. After it was heated, the color changed to blue. It was no longer shiny, but dull. The copper turned red when fixed in the flame, due to the heat. Due to the change in color, we...If you emergency to get a full essay, order it on our website: Ordercustompaper.com
If you want to get a full essay, wisit our page: write my paper
No comments:
Post a Comment