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lutik1710 [3]
3 years ago
11

Julia wants to find out which color fabric will heat up the fastest when put under a direct light.

Chemistry
2 answers:
drek231 [11]3 years ago
3 0
NO the answers wont be valid.
Readme [11.4K]3 years ago
3 0

Answer:

no to many variables

Explanation:

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Which compound is an acid? A. C2H4 B. KCl C. NH3 D. HNO3
Katyanochek1 [597]
Nitric acid is option D.
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What is the mass of 2.64 moles of water
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The mass of 2.64 moles of water is 47.56 grams
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3 years ago
1. Calculate the heat change associated with cooling a 350.0 g aluminum bar from
Amanda [17]

Answer:

14175 j heat released.

Explanation:

Given data:

Mass of aluminium = 350.0 g

Initial temperature = 70.0°C

Final temperature = 25.0°C

Specific heat capacity of Aluminium = 0.9 j/g.°C

Heat changed = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Heat change:

ΔT = Final temperature - initial temperature

ΔT = 25.0°C - 70°C

ΔT = -45°C

Q = m.c. ΔT

Q = 350 g × 0.9 j/g.°C  × -45°C

Q = -14175 j

7 0
3 years ago
Fe(s) + CuSO4(aq) ⇒ Cu(s) + FeSO4(aq)
Alexxandr [17]

Answer:

The answer to your question is CuSO₄

Explanation:

To answer your question just remember the following information

- A chemical reaction is divided into sections

 reactants and products

 reactants on the left side of the reaction

products on the right side of the reaction

- All the symbols have a meaning

 (s) means that that compound is in solid phase

 (aq) means that that compound is dissolved in solution.

Then, the answer is CuSO₄

4 0
3 years ago
Octane (C8H18)reacts oxygen gas (O2) to form carbon dioxide and water
iren [92.7K]

Answer:

i believe this is true

Explanation:

5 0
3 years ago
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