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Dimas [21]
3 years ago
11

In a voltaic cell, the ____

Chemistry
2 answers:
alekssr [168]3 years ago
5 0
In a voltaic cell , the anode electrons and is oxidized , while the cathode electrons and is reduced.
Dmitry [639]3 years ago
5 0

<u>Answer:</u> In a voltaic cell, anodic electrons gets oxidized and cathodic electrons gets reduced.

<u>Explanation:</u>

A voltaic cell is defined as an electrochemical cell which converts a chemical reaction leads to the production of electrical energy.

In these cells, oxidation reaction occurs at anode electrode and reduction reaction occurs at cathode electrode.

Oxidation reaction is defined as the reaction in which an atom looses its electrons. The atom gets oxidized during this reaction.

X\rightarrow X^{n+}+ne^-

Reduction reaction is defined as the reaction in which an atom gains electrons. The atom gets reduced during this reaction.

X^{n+}+ne^-\rightarrow X

Hence, in a voltaic cell, anodic electrons gets oxidized and cathodic electrons gets reduced.

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svetlana [45]

See the image below.

4 0
4 years ago
Express scientific notation 12 thousandth
Sever21 [200]
12 thousandth is the same as 0.012, so to put something in scientific notation you move the decimal point to the left or right until it is between the first two numbers. So:

Moving the decimal for 0.012 to between the first two numbers, we get: 1.2

For every move of the decimal place to get there, we divide/multiply by 10 each time. In this case, we multiply by 10 each time.

To get to 1.2, we had to move the decimal 2 times, so the answer is 1.2×10^-2

When you move the decimal to the right, the value of the power is negative, and when you move it to the left it is positive.
4 0
3 years ago
A gas with a volume of 535 mL at a temperature of -25C is heated to 175C. What is the new volume of the gas if pressure and numb
MakcuM [25]

Answer:966.45ml

Explanation:

Using Charles law.. V1/T1=V2/T2

V1=535ml

T1=-25+273

=248k

T2= 175+273=448k

V2=?

V2= V1*T2/T1

V2=535*448/248

V2=239680/248

V2=966.45ml

5 0
4 years ago
Read 2 more answers
An atom of sulfur is represented by 3316s. how many neutrons are in the nucleus of this atom?express your answer as an integer.
user100 [1]
In this question, the sulfur atom has atomic number 16 and atomic mass 33. The Atomic number represents the number of the proton inside the atoms and atomic mass represent the mass of the atoms. Since electron mass to small, the atomic mass can be interpreted as the sum of neutron and proton. Then, the number of the neutron would be:

mass= neutron + proton
33= neutron+16
neutron = 17
5 0
3 years ago
Assume that concentrated aqueous NH3 has a density of 0.252 g/mL (0.252 g of NH3 per mL of liquid). Calculate the volume of NH3
Kobotan [32]

The question is incomplete, here is the complete question:

Assume that concentrated aqueous NH₃ has a density of 0.252 g/mL (0.252 g of NH₃ per mL of liquid). Calculate the volume of NH₃ required to contain 0.442 mol?

<u>Answer:</u> The volume of ammonia required is 29.82 mL

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Molar mass of ammonia = 17 g/mol

Moles of ammonia = 0.442 moles

Putting values in above equation, we get:

0.442mol=\frac{\text{Mass of ammonia}}{17g/mol}\\\\\text{Mass of ammonia}=(0.442mol\times 17g/mol)=7.514g

To calculate the volume of ammonia, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}

Density of ammonia = 0.252 g/mL

Mass of ammonia = 7.514 g

Putting values in above equation, we get:

0.252g/mL=\frac{7.514g}{\text{Volume of ammonia}}\\\\\text{Volume of ammonia}=\frac{7.514g}{0.252g/mL}=29.82mL

Hence, the volume of ammonia required is 29.82 mL

4 0
3 years ago
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