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Paha777 [63]
3 years ago
9

Explain the Heat Transfers that occurs in a hot plate?

Chemistry
1 answer:
kramer3 years ago
6 0
Conduction is how heat transfers through direct contact with objects ... Convection currents also explain why water is warm at the top of the ocean, but gets cold the further you go down
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Which is a pure substance?<br> soda<br> gasoline<br> salt water<br> carbon dioxide
hram777 [196]

Answer: Carbon dioxide is a pure substance.

Explanation: A pure substance is defined when a substance has a single type of molecule. If more than 1 type of molecule is present in a substance, then it is considered as a mixture.

  • Soda is basically a mixture of water and carbon dioxide. More than 1 type of molecule is present.
  • Gasoline is a mixture of may gases. More than 1 type of molecule is present.
  • Salt water contains salt and water molecules, hence it is considered as a mixture.
  • Carbon dioxide has only 1 type of molecule which is CO_2 molecules. Hence, it is a pure substance.
8 0
2 years ago
Read 2 more answers
Explain how you find the instantaneous speed or velocity of an object
puteri [66]

Answer:

divide the distance by the average

Explanation:

ash QC ok

3 0
2 years ago
Gas law problem: A gas has a volume of 800 mL at -25℃ and 600 kPa. What would the volume of the gas be at 227℃ and 1000 kPa?
Sati [7]
<h3><u>Answer;</u></h3>

= 930.23 mL

<h3><u>Explanation</u>;</h3>

Using the combined gas law;

P1V1/T1 = P2V2/T2

Where; P1 = 600 kPa, V1 = 800 mL, and T1 = -25 +273 = 258 K, and

V2= ?, P2 = 1000 kPa, and T2 = 227 +273 = 500 K

Thus;

V2 = P1V1T2/T1P2

     = (600 ×800 ×500) / (258 × 1000)

     = 930.23 mL

5 0
3 years ago
Which of the following statements about metalloids is true?
Klio2033 [76]
Metalloids had properties that fall between those of metals and nonmetals (I believe that to be correct-.-)
7 0
3 years ago
Read 2 more answers
Which could be the pH of an aqueous solution with a H3O+ ion concentration that is less than its OH- ion concentration?
anzhelika [568]

Answer:

Explanation:

You can think of pH as "parts Hydrogen ion," but remember that the pH scale is "backwards." The pH scale ranges from 0 to 14, with zero being the most acidic (highest concentration of H+) and 14 being the most basic.

4 0
2 years ago
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