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rusak2 [61]
2 years ago
6

if you were trying to heat soup would you want to use a good thermal conductor or good thermal insulator? explain your answer

Chemistry
2 answers:
denis23 [38]2 years ago
5 0
I would want to use a thermal conductor because then I can actually heat up the soup but however if I used a thermal insulator it would just keep the soup warm but this would be no help if she was already cold
GarryVolchara [31]2 years ago
4 0

Answer:

a good thermal conductor

Explanation:

you are trying to heat it up so you want the heat to pass through the pot (or whatever you are heating it up in) to get to the soup

if you were trying to keep your soup warm, like if you were trying to bring it to lunch, you would want a good thermal insulator so the heat stays in the soup and does not pass through the container

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Brass is a solid solution composed of zinc and copper. Brass is classified as a (n): A.colloid B.suspension C.solution D.alloy
melamori03 [73]
Brass is an alloy, or a combination of two (or more) metals.
4 0
3 years ago
A mixture contains only nacl and al2(so4)3. a 1.45 g sample of the mixture is dissolved in water, and an excess of naoh is added
Aleks [24]

When mixture of NaCl and Al₂(SO₄)₃ is allowed to react with excess NaOH, only Al₂(SO₄)₃ reacts with it and NaCl does not react with NaOH due to presence of common ion (Na⁺). On reaction gelatinous precipitate of aluminium hydroxide [Al(OH)₃] is produced.  The balanced chemical reaction is represented as-

Al₂(SO₄)₃ + 6NaOH → 2Al(OH)₃ + 3Na₂SO₄

On this reaction, 0.495 g = 0.495/78 moles =6.346 X 10⁻³ moles of Al(OH)₃.

As per balanced reaction, two moles of Al(OH)₃ is produced from one mole Al₂(SO₄)₃. So, 6.346 X 10⁻³ moles of Al(OH)₃ is produced from (6.346 X 10⁻³)/2 moles=3.173 X 10⁻³ moles of Al₂(SO₄)₃= 3.173 X 10⁻³ X 342 g of Al₂(SO₄)₃=1.085 g of Al₂(SO₄)₃.

So, mass percentage of Al₂(SO₄)₃ is= (amount of Al₂(SO₄)₃/total amount of mixture)X100 = \frac{1.085 X 100}{1.45} =74.8 %.

7 0
2 years ago
If an atom of zinc has a mass of 64 it has how many neutrons
sveta [45]
Answer:

no of neutron = atomic mass - atomic number

Explanation:

here
atomic mass = 64
atomic number = 30

no of neutron = <span>64−30</span>

no of neutron = 34


3 0
2 years ago
Help plz help
Anika [276]

Answer:

D

Explanation:

4 0
2 years ago
A double-replacement reaction, the ____.
vladimir1956 [14]

Answer:

b. reactants are two ionic compounds.

Explanation:

A double-replacement reaction is different from a single-replacement reaction  because a double-replacement reaction is a reaction between two ionic compounds while in a single-replacement reaction one atom replace another atom. In addition, the product formed from a double-replacement reaction often precipitate from the given solution.

4 0
3 years ago
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