Answer:
The molecular structure will remain the same.
Explanation:
When water is heated, the heat supplied breaks down the intermolecular interactions (Hydrogen bondings) between the water molecules. This results in conversion of liquid state to gas state and water vapors evaporate.
While the molecular structure keeps intact. It is not changed. Hence, when the heat is removed the vapors of water condense back to liquid state and releases the heat which was absorbed during vaporization.
The absence of standards of absolute and universal application.
Answer : The temperature on the Fahrenheit scale was,
Explanation :
The conversion used for the temperature from degree centigrade to Fahrenheit is:
where,
= temperature in Fahrenheit
= temperature in centigrade
As we are given the temperature in degree centigrade is, 45
Now we have to determine the temperature in Fahrenheit.
Therefore, the temperature on the Fahrenheit scale was,
Answer:
Mass of Nacl = 4.92 gram (Approx)
Explanation:
Given:
Hydrochloric acid = 3.3 g
Sodium hydroxide = 5 g
Computation:
Hcl + NaoH ⇒ Nacl + H₂O
Number of mole of Hcl = 3.3 / 36.46 = 0.0905 moles
Number of mole of NaoH = 5 / 40 = 0.125 moles
We, know that number of moles in Hcl is less then number of mole in NaoH
So,
Number of mole of Hcl = Number of mole of Nacl
So,
Mass of Nacl = Number of mole of Nacl × Molar mass of Nacl
Mass of Nacl = 0.0905 × 54.4
Mass of Nacl = 4.92 gram (Approx)
Hey!
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Converting ounces to pounds we divide.
Converting pounds to ounces we multiply.
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In this case it's asking to find how many ounces 6lb is.
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Hence, the answer is D. 6lb x 16oz
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Hope This Helped! Good Luck!