ساینمنت انگلیسی(38308)*
چهار سال پیش منتشر شده
تعداد بازدید: 147
کد پروژه: 325628
شرح پروژه
سلام وقت بخیر میخواستم بدونم شما اساینمنت انگلیسی هم انجام میدین؟ شیمی به زبان انگلیسی 1) Choose one of the following chemical
reactions to investigate.
Metals reacting with acids as follows:
X (S) + H2SO A (ag)
-› XSO A (ag) + H2 (g)
Carbonate or carbonate salts react with
acids as follows:
XCO3 (S) + 2 HCI (aq)
> XCI2 (ag) + H20
(g) + CO2 (g)
Hydrogen peroxide decomposes as follows:
2 H202 (aq)
- 2 H20 (1) + 02 (g)
2) Write an appropriate testable question that
you will attempt to answer in this investigation.
Your question must state the manipulated and
responding variables (i.e. the independent and
dependent variables).
Note
- you will plan to investigate the affect of
two of the following factors
- the concentration
surface area, temperature, and catalysts.3) Write a hypothesis outlining how the factor or
factors you have chosen affect chemical reaction
rates. Then, predict the results of your
investigation based on this hypothesis.
4) Identify all major independent, dependent, and
controlled variables in your investigation.
5) Describe your experimental set-up and
procedure, including the independent,
dependent, and controlled variables. Make sure
to include the following information:
Basic safety precautions required in a lab
The independent, dependent, and
controlled variables
All necessary chemicals and equipment
Safety information for the chemicals being
used
- in this section, you will include
appropriate safety labels.
You may refer to this link for the WHMIS
2015 pictograms that are commonly used in
Canada. تا فردا شب
8186*
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