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snow_tiger [21]
3 years ago
15

Take a paperclip into water and then slowly pull it upward to the point where it is nearly free from the surface. You'll find th

at for a short distance the water is brought up with the metal are these adhesive or cohesive forces at work?
Chemistry
1 answer:
Mandarinka [93]3 years ago
5 0

Answer:

Adhesive forces and cohesive forces

Explanation:

Cohesive forces is how much the water molecules stick to each other and adhesive forces are to which extinct they stick to other surfaces.

When we pull the paperclip upward the water molecules adhere to it due to adhesive forces. While the water on the clip is remain connected to water in the glass because of cohesive forces.

So if the adhesive forces dominates the water will be pulled out and if the cohesive forces dominate it will remain with other water in the cup.

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Answer:

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4 0
3 years ago
How much heat is absorbed when 447 g of water , Cp = 4.184 J/goC, goes from 25.0 oC to 35.0 oC?
Digiron [165]

Answer:

The answer to your question is  Q = 18702.5 J

Explanation:

Data

mass of water = m = 447 g

Cp = 4.184 J/g°C

Temperature 1 = T1 = 25°C

Temperature 2 = T2 = 35°C

Heat = Q = ? Joules

Process

1.- Write the formula to calculate heat

    Q = mCp(T2 - T1)

2.- Substitution

    Q = (447)(4.184)(35 - 25)

3.- Simplification

    Q = (447)(4.184)(10)

4.- Result

    Q = 18702.5 J

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An ideal gas is a gas. <br> Perfect<br> Theoretical<br> Real
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Answer:

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5 0
3 years ago
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Answer: The coefficient in front of AgCl when the equation is properly balanced is 2.

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

Decomposition is a type of chemical reaction in which one reactant gives two or more than two products.

Decomposition of silver chloride is represented as:

2AgCl(s)\rightarrow 2Ag(s)+Cl_2(g)

Thus the coefficient in front of AgCl when the equation is properly balanced is 2.

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Answer:

the answer is c

b/c contain more than one element

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3 years ago
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