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Rasek [7]
3 years ago
11

4. What is the dependent variable in the statement below?

Chemistry
2 answers:
mina [271]3 years ago
8 0
A. Amount of sleep. C and D have nothing to do with the problem, and B is already stated.
Naddik [55]3 years ago
4 0
A. Amount of sleep, since it depends on how much coffee she drinks
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Aleks [24]

Answer should be:

Cells

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2 years ago
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A standard galvanic cell is constructed so that the overall cell reaction is as given below where M is an unknown metal. 2 Al3+(
jasenka [17]

Answer:

magnesium metal

Explanation:

According to the redox reaction equation, six electrons were transferred hence n=6 and F= Faraday's constant 96500C. ∆G° is given hence E°cell can easily be calculated as follows:

From ∆G°= -nFE°cell

E°cell= -∆G°/nF= -(-411×10^3/96500×6)

E°cell= 0.7098V

But for Al3+(aq)/Al(s) half cell, E°= -1.66V from standard table of reduction potentials.

E°cell= E°cathode- E°anode but Al3+(aq)/Al(s) half cell is the cathode

Hence

E°anode=E°cathode - E°cell

E°anode= -1.66-0.7098= -2.37V

This is the reduction potential of Mg hence the anode material was magnesium metal

5 0
3 years ago
During a lab experiment, Mandy and her lab partner work with corrosive chemical substances. What is the proper way to dispose of
Mandarinka [93]
They would have to dispose them in their designated waste bin/container the instructor assigned.

You NEVER dispose of chemicals down the drain.
8 0
3 years ago
HELPPP<br> What do you think caused this land formation ?
Arturiano [62]

Answer:

Erosion/Weathering

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Because the rock is exposed to the ocean, the constant push and pull of the water against the rock erodes the material away and moves it elsewhere. The wind likely aided in this process as well. This caused the big gap in the center of the rock.

6 0
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The ____ is the time required for one half of the atoms of a radio scope to ____.
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