Answer : The correct option is, (C) electrons would not flow through the voltmeter.
Explanation :
Electrochemical cell : It is defined as a device used to convert the chemical energy produced in a redox reaction into electrical energy. The redox reaction taking place.
The electrode on which the oxidation takes place is called the anode (or negative pole) and the electrode on which the reduction takes place is called the cathode (or positive pole). This cell is setup by using the salt bridge.
In the external circuit, the electrons flow from the anode (negative pole) to cathode (positive pole) through the voltmeter. In the inner circuit, the ions flow through the salt bridge.
From the given diagram, we conclude that when the oxidation will be stop then the electrons would not be flow from anode (negative pole) to cathode (positive pole) through the voltmeter.
Hence, the correct option is, (C) electrons would not flow through the voltmeter.
Answer:
they combine to form metal oxide
Answer:
b, c and d (last three options)
Explanation:
It can't be the first one because:
On the left hand side there is one of everything and then on the right, ther is one zinc, two chloride and 2 hydrogen atoms. It is unbalanced
Second one:
there are 8 carbons on both sides, 20 hydrogens on both sides and 26 oxygen on both sides. It is balanced
Third
1 copper on both sides, 2 hydrogens on both sides and 1 oxygen on both sides. It is balanced
Fourth
4 silver on both sides and 2 oxygens on both sides
After the water is boiled off, the mass is 9.7 grams, so find the weight of the water.
12.98 - 9.7 = 3.28g H2O
Find how many moles of CuSO4 and H2O you have.
If there are about 18g per mole of H2O
3.28/18 = .1822 moles of H2O
If there are about 160g per mole of CuSO4
9.7/160 = .0606 moles of CuSO4
.1822/.0606 = 3
Ratio of H2O to CuSO4 = 1:3
Formula
<span>CuSO4.3H2O
</span>
Full Name
<span>Copper (II) Sulphate Trihydrate</span>
Answer:
the answer would be C
i took this from a quizlet
hopes this helps<3
