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zmey [24]
3 years ago
12

How do kinetic tiles work?

Chemistry
1 answer:
raketka [301]3 years ago
7 0

Answer:

It works because of the significant principle of piezoelectricity

Explanation:

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Which one is a chemical reaction? Why?
Alex17521 [72]

Answer:

Copper turns green on exposure to air

Explanation:

Liquid water freezes to form ice: Physical change

Reason: Water can melt back when it becomes ice.

Copper turns green on exposure to air: Chemical change

Reason: The copper can not change back from the green state when it turns green.

3 0
2 years ago
What happens to the gas particles in an an inflated ball when it gets a hole? why?
netineya [11]
The gas flows from higher concentration/pressure to lower concentration/pressure, which is outside the ball.
7 0
3 years ago
Read 2 more answers
a piece of food is burned in a calorimeter that contains 200.0g of water. If the temperature of the water rose from 65.0°C to 83
Flauer [41]

Answer: 15062.4 Joules

Explanation:

The quantity of heat energy (Q) required to heat a substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Since,

Q = ?

Mass of food = 200.0g

C = 4.184 j/g°C

Φ = (Final temperature - Initial temperature)

= 83.0°C - 65.0°C = 18°C

Then, Q = MCΦ

Q = 200.0g x 4.184 j/g°C x 18°C

Q = 15062.4 J

Thus, 15062.4 joules of heat energy was contained in the food.

4 0
3 years ago
Atoms are the smallest particles of a compound that still retain the properties of that
N76 [4]

Answer:

the answer is true

Explanation:

it is the smallest particle in an element that takes part in a chemical reaction

5 0
2 years ago
Which molecule is a stereoisomer of trans-2-butene?
S_A_V [24]

Answer:

I can't say that it is definitely write.

HHH

H-C-C-C

6 0
2 years ago
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