Answer:
the invention of the microscope has made seeing bacteria/cells, examining forensic evidence (such as fingerprints), studying atomic structure, tissue analysis, and the study of our ecosystem possible to the naked eye
Explanation:
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Answer:
The answer would be 0.198 liters.
Explanation:
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Answer:
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Answer:
C. 2.0 mL
Explanation:
This value is due to the fact that the burettes are instruments that allow accurately measure volumes of liquids, in this case it has a precision of ±0.01 mL, which indicates that this is the smallest value that the burette can measure with accuracy, which indicates that 2 mL can be measured accurately without any problem.
The mass of oxygen that is required to react completely with 2 moles of CH4 is 128 grams
calculation
mass = moles xmolar mass
The molar mass of O2= 16 x2 = 32 g/mol
find the number of moles
first write the the equation for reaction
CH4 + 2O2 → CO2 + 2H2O
the mole ratio between CH4 to O2 is 1:2 therefore the moles of O2 = 2 x2 = 4 moles
mass is therefore = 32 g/mol x 4 moles = 128 grams