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algol [13]
3 years ago
13

Is it possible to decrease resistance of the wire without changing the material it's made out of?

Chemistry
1 answer:
loris [4]3 years ago
3 0
Yes, it is possible to decrease the resistance of a wire without changing the material it made out of. This is because, there are many factors which affect the resistance of a wire. These factors can be manipulated to change the resistance of the wire. The factors include: cross sectional area of the wire, length of the wire, temperature and the material of the wire. The other three factors can be manipulated to change the resistance of the wire without changing the material of the wire.
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True or False. An element's creativity is determined by the number of protons found in an atom of the element.
Alla [95]
The answer is true because u only need the number of protons which is the good thing but it also can be false but put true i promise you well get it right
4 0
3 years ago
Which of these statements is/are true? Rewrite each false statement to make it true.
Lelechka [254]
<h3>Answer:</h3>

TRUE- The surface tension of CH3Br is greater than the surface tension of CH3Cl.

FALSE-Water forms spherical drops on wax because the surface tension of water is greater than the adhesive forces between wax and water.

<h3>Explanation:</h3>
  • The statement that, the surface tension of CH3Br is greater than the surface tension of CH3Cl is true.
  • This is because of the fact that CH₃Br has more molar mass compared to CH₃Cl. Additionally, CH₃Br has greater dispersion forces and is more polarizable thus having greater surface tension compared to CH₃Cl.
  • The statement that "Water forms spherical drops on wax because the surface tension of water is greater than the adhesive forces between wax and water" is FALSE.
  • We would correct it by saying, Water forms spherical drops on wax because the cohesive force of water is greater than the adhesive forces between wax and water.
  • Cohesive forces are forces of attraction between molecules or particles of the same type while adhesive forces is a force of attraction between molecules of different type.
4 0
3 years ago
Read 2 more answers
Atoms of sg are very unstable, and it is therefore difficult to study this element's properties. based on the position of sg in
ale4655 [162]
All " transuranium elements " ( i.e. an atomic number greater than 92 ) are unstable. Elements in the same family have similar properties. Based on this logic, one would expect seaborgium ( Sg ) to have similar properties to tungsten ( W ), which is directly above it in the same family.Elements of atomic mass 92 and above being most unstable called the transuranium group of elements is found to have many common properties and becomes difficult to judge on the basis of properties. Atomic number is the number of protons in the nucleus of the atom and it describes the chemical property of the elements.
4 0
4 years ago
What is a reactant?
Genrish500 [490]

Answer:

it is D

Explanation:

because it is a substance that participants in a chemical reaction.

3 0
3 years ago
if you take 2.0mL of a 7.0 ppm NaOH solution and dilute it to 250.0mL, calculate the final concentration in ppm.
Oduvanchick [21]

Answer:

C₂ = 0.056 ppm

Explanation:

Given data:

Initial volume = 2.0 mL

Initial concentration = 7.0 ppm

Final volume = 250.0 mL

Final concentration = ?

Solution:

Formula:

C₁V₁ = C₂V₂

C₁ = Initial concentration

V₁ = Initial volume

C₂ = Final concentration

V₂ = Final volume

Now we will put the values in formula.

C₁V₁ = C₂V₂

7.0 ppm × 2.0 mL = C₂ × 250.0 mL

C₂ = 14.0 ppm.mL /250.0 mL

C₂ = 0.056 ppm

4 0
3 years ago
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