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labwork [276]
3 years ago
5

When bethany walks across a carpet her socks pick up many electric charges. Later in the day these charges are no longer present

on her socks. What most likely happened to the charges?
Chemistry
1 answer:
maxonik [38]3 years ago
4 0

Answer:

When bethany walks across a carpet, her socks pick up many electric charges. Later in the day, these charges are no longer present on her socks. What most likely happened to the charges.

A. the charges disappeared.

B. The charges switched signs

C. the charges transferred to another object ✓

D. The charges broke apart into smaller particles

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42.34 g of water could be warmed from 21.4°C to 43.4°C  by the pellet dropped inside it

Heat loss by the pellet is equal to the Heat gained by the water.

q_{w} = -q_{p} ….(1)

where, q_{w} is the heat gained by water

q_{p} is the heat loss by pellet

q_{w} = mCΔT

where m = mass of water

C = specific heat capacity of water = 4.184 J/g-°C

ΔT = Increase in temperature

ΔT for water = 43.4 - 21.4 = 22°C

q_{w} = m × 4.184 × 22 …. (2)

Now

q_{p} = H_{c} ×ΔT

where H_{c} = Heat capacity of pellet = 56J/°C

Δ T for pellet = 43.4 - 113 =- 69.6°C

q_{p} = 56 × -69.6 = -3897.6 J

From equation (1) and (2)

-m× 4.184 × 22 =-3897.6

m= 42.34 g

Hence, 42.34 g of water could be warmed from 21.4 degrees Celsius to 43.4 degrees Celsius by the pellet dropped inside it.

Learn more about specific heat here brainly.com/question/16559442

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2 years ago
Cornstarch, a carbohydrate consisting of hydrogen, carbon, and oxygen
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ionic

Explanation:

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What was the primary cause of the increase in oxygen content between 400 and 300 million years ago
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Answer:

What was the primary cause of the increase in oxygen content between 400 and 300 million years ago

Explanation:

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A 50.0 mL sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. What is the new v
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Ans: Final volume = 25.0 ml

<u>Given:</u>

Initial volume V1 = 50.0 ml

Initial pressure P1 = 20.0 atm

Final pressure P2 = 40.0 atm

<u>To determine:</u>

The final volume V2

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