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MaRussiya [10]
3 years ago
12

I need help in Question 5and6 in science The subject is science

Chemistry
1 answer:
spin [16.1K]3 years ago
3 0
Option
A)
and
C)
just cross check with somet
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There are islands in the ocean that grow larger the Hawaiian islands are good examples of this the reason that the islands were
vredina [299]

Explanation:

The reasons that islands formed are still growing is simply because newer materials are being added to them.

  • A growing earth is as a result of addition of more materials arising from the mantle.
  • Generally, Volcanic islands forms as a result of magma that reaches the surface or ocean floor from deeper part of the earth.
  • This usually occurs in places around a plate boundary where materials upwells from the asthenosphere or shallow crustal melting.
  • As more materials are being melted, more also reaches the surface and continues to make the Island grow.

Learn more:

Volcanic eruptions brainly.com/question/5055821

#learnwithBrainly

3 0
4 years ago
A 136 g sample of an unknown substance was heated from 20.0 °C to 40.0 °C. In the process the substance absorbed 2440 J of energ
Julli [10]

Answer:

Option A. The specific heat is 0.897 J/gºC, The Substance is aluminum.

Explanation:

We'll begin by calculating the change in temperature of the substance. This can be obtained as follow:

Initial temperature (T₁) = 20.0 °C

Final temperature (T₂) = 40.0 °C

Change in temperature (ΔT) =?

ΔT = T₂ – T₁

ΔT = 40 – 20

ΔT = 20 °C

Finally, we shall determine the specific heat capacity of the substance. This can be obtained as follow:

Mass (M) = 136 g

Change in temperature (ΔT) = 20 °C

Heat (Q) absorbed = 2440 J

Specific heat capacity (C) =?

Q = MCΔT

2440 = 136 × C × 20

2440 = 2720 × C

Divide both side by 2720

C = 2440 / 2720

C = 0.897 J/gºC

Comparing the specific heat capacity (i.e 0.897 J/gºC) of the substance with those in the table above, the substance is Aluminum.

Thus, option A gives the correct answer to the question.

4 0
3 years ago
Please help me with this questions, sorry:(
natulia [17]

Answer:

yes

Explanation:

the water may freeze at low winter temperatures but  it will still be there

8 0
3 years ago
Why do you think most transportation in the U.S is still running on fossil fuels
Anit [1.1K]

Answer:

because we need gas

Explanation:

3 0
3 years ago
Helpppp me please please
kipiarov [429]
The answer is letter d    
3 0
3 years ago
Read 2 more answers
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