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Wittaler [7]
3 years ago
10

How do you test the three types of alcohols?

Chemistry
1 answer:
docker41 [41]3 years ago
7 0
By using the Luca's method.
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How much heat energy is required to raise the temperature of 0.367 kg of copper from 23.0 C to 60.0 C ? The specific heat of cop
mojhsa [17]
Note: We must keep the units we use consistent. The Cp is given in cal/gC so we will use cal for energy, grams for mass and C for temperature.
1)
Heat supplied can be calculated using:
Q = mCpΔT; where m is the mass, Cp is the specific heat capacity and ΔT is the temperature change.
Q = 367 x 0.092 x (60 - 23)
Q = 125 Cal

2)
Using the same equation:
125 = 60 x 0.092 x (T - 23)
T = 45.6 C
5 0
3 years ago
What is relationship between frequency and wavelength on a electromagnetic speptrum?
Shalnov [3]
That number, also known as the frequency, will be larger for a short-wavelength wave than for a long-wavelength wave. The equation<span> that relates wavelength and frequency for electromagnetic waves is: λν=c where </span>λ<span> is the wavelength, ν is the frequency and c is the speed of light.</span>
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3 years ago
At 6pm, you see logs piled up for a campfire. Later you see flames and feel heat from it. At 8pm, only smoldering ashes remain.
mr_godi [17]

The process that took place is called oxidation or burning where wood was burnt into ashes.

<h3><u>Explanation:</u></h3>

Wood is an organic compound formed of different types of carbohydrates, proteins and lipids. These components do have carbon oxygen hydrogen as most abundant atoms and also has some amount of nitrogen, phosphorous, and other metal ions like magnesium, calcium etc.

When the logs were burnt, the chemical reaction took place between the atmospheric oxygen and the atoms present in the wood, forming different oxides. As carbon was the most abundant atom present, a huge smoke containing carbon dioxide and carbon monoxide evolved. The hydrogen became the water vapour, and other gases were also formed like nitrogen dioxide, sulphur dioxide etc. These gases went off into atmosphere. The rest that were left behind were mixture of unburnt part of wood as well as the solid metal oxides. There were unburnt particles of carbon mixed with them too.

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4 years ago
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Arlecino [84]

Explanation:

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4 0
3 years ago
Which of the following is an example of kinetic energy?
sergeinik [125]
Dog running. kinetic is movement
5 0
4 years ago
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