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3 years ago

If you test the boiling point of ethanol and have a 2.3% error, what was the boiling point of ethanol in the test?

Chemistry

1 answer:

anyanavicka [17]3 years ago

3 0

Answer:

the answer is A

Explanation:

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What is the amount of heat released by 1.00 gram of liquid water at 0°C when it changes to 1.00 gram of ice at 0°C?

QveST [7]

Answer:

334J/g

Explanation:

Data obtained from the question include:

Mass (m) = 1g

Specific heat of Fusion (Hf) = 334 J/g

Heat (Q) =?

Using the equation Q = m·Hf, we can obtain the heat released as follow:

Q = m·Hf

Q = 1 x 334

Q = 334J

Therefore, the amount of heat released is 334J

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4 years ago

Express 0.08010 in exponential notation to the proper significant figures

nataly862011 [7]

This would be 8.010 * 10^-2

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4 years ago

Energy released from atomic reactions is called?

erma4kov [3.2K]

The answer is nuclear energy

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3 years ago

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Snowcat [4.5K]

Explanation:

<h2>Hydrogen + Oxygen = Water....</h2>

(~‾▿‾)~(~‾▿‾)~(~‾▿‾)~(~‾▿‾)~(~‾▿‾)~(~‾▿‾)~(~‾▿‾)~

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3 years ago

2. Explain what an isotope is and give two important physical properties of isotopes that make them useful in biological researc

katrin [286]

Answer:

<h2>isotope is a variants of a particular chemical element which differ in neutron number, and consequently in nucleon number.All isotopes of a given element have the same number of protons but different number of neutrons in each atom.</h2>

<h2>The 2 important physical properties of isotope is</h2>

<h2>1.Melting Points</h2><h2>2.Boiling Points</h2>

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3 years ago