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mars1129 [50]
3 years ago
10

Sandpaper is a type of rough material that is rubbed on other surfaces to make them smoother. Ms. Fonger is rubbing a piece of s

andpaper on wood that will be used to make a table. What kind of energy is being produced?
Chemistry
1 answer:
torisob [31]3 years ago
3 0

Answer:

Heat energy is being produced due to friction.

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Monica [59]

Answer:

364 K or 91°C

Explanation:

Applying,

V₁/T₁ = V₂/T₂................ Equation 1

Where V₁ = Initial Volume, V₂ = Final volume, T₁ = initial Temperature, T₂ = final Temperature.

make T₂ the subject of the equation,

T₂ = V₂T₁/V₁................. Equation 2

From the question,

Given: V₁ = 375 mL, V₂ = 500 mL, T₁ = 0.0°C = (273+0) K = 273 K

Substitute these values into equation 2

T₂ = (500×273)/375

T₂ = 364 K

T₂ = (364-273) °C = 91 °C

5 0
3 years ago
Find q when 22.0g of water is heated from 25.0 C to 100 C. The specific heat capacity is water is 4.184 J/g.K
Leokris [45]

Answer:27,430J/g.K

Explanation:q= mass* specific heat capacity * change in temperature (kelvin)

22*4.184*[(100-25) + 273]

22*4.184*298

27,430J/g.K

3 0
3 years ago
Explain what the ecliptic is
AlekseyPX
The Ecliptic is an imaginary line on the sky that marks the annual path of the sun. It is the projection of Earths orbit onto the celestial sphere. The ecliptic is even the starting point for the celestial coordinate system used by astronomers to pinpoint the location of every star, nebula, and galaxy.
7 0
3 years ago
How many bonds will an atom of bromine usually form in order to reach an octet of electrons?
irga5000 [103]

Answer:

So fluorine and bromine are halogens and when you work out the Lewis dot structure you'll see that they each have one unpaired electron, therefore these unpaired electrons join together to form one bond.

5 0
2 years ago
Read 2 more answers
What happens if a acid hits aluminum​
satela [25.4K]

Answer:

Acids that form a complex with aluminum ions can eat their way through the oxide coating, however, so concentrated hydrochloric acid can dissolve aluminum. Zinc is also very reactive and lacks the passivating layer found on aluminum, so it reduces hydrogen ions from acids like hydrochloric acid to form hydrogen gas.

7 0
3 years ago
Read 2 more answers
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