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zvonat [6]
3 years ago
14

Name two things that reduce friction

Chemistry
2 answers:
coldgirl [10]3 years ago
7 0
Oil and a smooth surface
photoshop1234 [79]3 years ago
5 0
Two ways are: Make the surfaces smoother and Lubrication<span> </span>
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Please answer ASAP!!
Alenkasestr [34]

Answer:

C.0.28 V  

Explanation:

Using the standard cell potential we can find the standard cell potential for a voltaic cell as follows:

The most positive potential is the potential that will be more easily reduced. The other reaction will be the oxidized one. That means for the reactions:

Cu²⁺ + 2e⁻ → Cu E° = 0.52V

Ag⁺ + 1e⁻ → Ag E° = 0.80V

As the Cu will be oxidized:

Cu → Cu²⁺ + 2e⁻

The cell potential is:

E°Cell = E°cathode(reduced) - E°cathode(oxidized)

E°cell = 0.80V - (0.52V)

E°cell = 1.32V

Right answer is:

<h3>C.0.28 V </h3>

<h3 />

4 0
2 years ago
What is the average velocity between 3.00 and 6.00 seconds?
diamong [38]
1)
average velocity:
(3,9)
(6,36)
average velocity=(36-9)m/(6-3) s=27m/3s=9 m/s

Answer: 9 m/s, east. 

2)
(12, 144)
(15,225)
average velocity=(225-144)m/(15-12)s=81 m/3s=27 m/s

Answer: 27 m/s,east. 
8 0
3 years ago
Read 2 more answers
What must be true for a substance to be able to dissolve in water?
zvonat [6]

In order for a solute to dissolve in a solvent, the attractive forces between solute particles and the solvent particles must be stronger than the attractive forces between solute-solute and solvent-solvent particles. This is important so that the solute will remain in solution.

3 0
3 years ago
A solenoid is a coil of wire that produces a magnetic field when carrying an electric current. The strength of the magnetic fiel
BaLLatris [955]

Answer: Motion, providing a burst of power that can move a specific part of the device.

Explanation: Hope this helps

3 0
2 years ago
Read 2 more answers
An isotope becomes more stable by changing the number of what?
hichkok12 [17]
A isotope is atoms of the same element with different amount of neutrons to change the mass. They can become more stable by sharing or giving away electrons to have a stable electron shell
3 0
3 years ago
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