1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
erik [133]
3 years ago
13

HELP THIS IS SCIENCE (No links or I'll rip off your fingers)

Chemistry
2 answers:
Arte-miy333 [17]3 years ago
6 0
the answer is c because it makes more sense :)
balu736 [363]3 years ago
3 0

Answer:

D

Explanation:

Silver is a metal with high conductivity ....

Hope its right !

You might be interested in
If the aluminum block is initially at 25 ∘C, what is the final temperature of the block after the evaporation of the alcohol? As
skad [1K]

Explanation:

The given data is as follows.

       Heat of vaporization (\Delta H_{vap}) = 45.4 kJ/mol

       Specific heat (C_{p}) = 0.903 j/g^{o}C

Let us assume the alcohol given is C_{3}H_{8}O and its mass is 1.12 g. Also, mass of aluminium block is 73.0 g.

First, calculate the moles of alcohol (C_{3}H_{8}O) as follows.

          No. of moles alcohol = \frac{mass}{\text{molar mass}}

                                              = \frac{1.12 g}{60.1 g/mol}

                                              = 0.0186 mol

So, heat absorbed by the alcohol (q_{alcohol}) = heat lost by aluminium (q_{aluminium})

          n \times \Delta H_{vap} = -m \times C_{p} \times \Delta T

          0.0186 mol \times 45.4 kJ/mol = - 73.0 g \times 0.903 J/g^{o}C \times (T_{f} - 25^{o}C)

              12.71 = - (T_{f} - 25^{o}C)

                   T_{f} = 12.3^{o}C

Thus, we can conclude that the final temperature of the block is 12.3^{o}C[/tex].

7 0
3 years ago
The relative positions of protons, neutrons, and electrons in an atom
Dmitrij [34]
Protons and neutrons are in the center
electrons orbit around the center/nucleus
7 0
3 years ago
What is one way to test whether an unknown solution is acidic or basic
Dima020 [189]

A solution's pH will be a number between 0 and 14. A solution with a pH of 7 is classified as neutral. If the pH is lower than 7, the solution is acidic. When pH is higher than 7, the solution is basic. These numbers describe the concentration of hydrogen ions in the solution and increase on a negative logarithmic scale. For example, If Solution A has a pH of 3 and Solution B has a pH of 1, then Solution B has 100 times as many hydrogen ions than A and is therefore 100 times more acidic.

4 0
3 years ago
If water has no color, why does your hair get darker when water makes contact with it?
Simora [160]

Answer:

The water makes your individual hairs stick close together. ... When more light is absorbed by your wet hair, less light gets reflected back to your eyes. The result is that your hair appears darker than when it's dry.

6 0
3 years ago
A sample of iron is put into a calorimeter (see sketch at right) that contains of water. The iron sample starts off at and the t
Mariulka [41]

Answer:

Therefore, the specific heat capacity of the iron is 0.567J/g.°C.

<em>Note: The question is incomplete. The complete question is given as follows:</em>

<em>A 59.1 g sample of iron is put into a calorimeter (see sketch attached) that contains 100.0 g of water. The iron sample starts off at 85.0 °C and the temperature of the water starts off at 23.0 °C. When the temperature of the water stops changing it's 27.6 °C. The pressure remains constant at 1 atm. </em>

<em> Calculate the specific heat capacity of iron according to this experiment. Be sure your answer is rounded to the correct number of significant digits</em>

Explanation:

Using the formula of heat, Q = mc∆T  

where Q = heat energy (Joules, J), m = mass of a substance (g)

c = specific heat capacity (J/g∙°C), ∆T = change in temperature (°C)

When the hot iron is placed in the water, the temperature of the iron and water attains equilibrium when the temperature stops changing at 27.6 °C. Since it is assumed that heat exchange occurs only between the iron metal and water; Heat lost by Iron = Heat gained by water

mass of iron  = 59.1 g, c = ?, Tinitial = 85.0 °C, Tfinal = 27.6 °C

∆T = 85.0 °C - 27.6 °C = 57.4 °C

mass of water = 100.0 g, c = 4.184 J/g∙°C, Tinitial = 23.0 °C, Tfinal = 27.6 °C

∆T = 27.6°C - 23.0°C = 4.6 °C

Substituting the values above in the equation; Heat lost by Iron = Heat gained by water

59.1 g * c * 57.4 °C  = 100.0 g * 4.184 J/g.°C * 4.6 °C

c = 0.567 J/g.°C

Therefore, the specific heat capacity of the iron is 0.567 J/g.°C.

5 0
2 years ago
Other questions:
  • Which of the following is a mixture?<br><br> steel<br> water<br> oxygen<br> gold
    9·2 answers
  • What structures on the tongue are similar to olfactory cells
    10·1 answer
  • Can you make a love potion
    7·2 answers
  • What is a tough, rigid, outer covering that protects some cells and gives them shape?
    12·1 answer
  • A cell created by cloning is genetically A identical to its parent. B identical to its stem cell. C unique because it is a mixtu
    13·1 answer
  • Which of these describes an endothermic reaction?
    12·1 answer
  • 4 what is the net amount of heat released when two moles of c2h6(g) are formed from its elements at 101.3 kpa and 298 k?
    8·2 answers
  • Which of the following occurs because of unequal heating of the Earth's surface?
    8·2 answers
  • Which factor affects kinetic energy but not potential energy?
    9·1 answer
  • What is 65x2? .....talk too meeee!! lm.ao I’m hella bored:)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!