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Dahasolnce [82]
3 years ago
14

Is it physical change or chemical change when you smooth a wood chair with sandpaper?

Chemistry
1 answer:
White raven [17]3 years ago
8 0
It should be a chemical change
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Can sombody pls help me with this​
luda_lava [24]
Wouldn’t it be half of each? For 36 I guess is 18 and 54 will be 27, (NOT SURE)
6 0
2 years ago
true or false electrical energy is the amount of energy that contains an object due to the kinetic energy?​
yuradex [85]

The answer to this question would be true.

4 0
2 years ago
What is the specific heat of a substance if a mass of 10.0 kg increases in temperature from 10.0°C to 70.0°C when 2,520 J of hea
Ksju [112]

Answer:

A. 0.00420 J/(gi°C)

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i got it rigt

8 0
3 years ago
How is kinetic energy related to the Kelvin scale?
IRINA_888 [86]
The Kelvin temperature of a substance is directly equal to the avg kinetic energy of particles of a substance. Hope that is what your looking for
8 0
3 years ago
What is the maximum mass of aluminum chloride that could be obtained from 6 mol of barium chloride?
kodGreya [7K]
You have to find the stoichiometric ratio between AlCl₃ and BaCl₂. The common element between them is Cl. So, the ratio of Cl in BaCl₂ to AlCl₃ is 2/3. The molar mass of AlCl₃ is 133.34 g/mol. The solution is as follows:

Mass of AlCl₃ = (6 mol BaCl₂)(2 mol Cl/1 mol BaCl₂)(1 mol AlCl₃/3 mol Cl)(133.34 g/mol) = 533.36 g AlCl₃
8 0
3 years ago
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