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nasty-shy [4]
3 years ago
5

Based on the given information, which of the following is the students' correct conclusion about their experiment?

Chemistry
1 answer:
Julli [10]3 years ago
6 0

Answer:kj

Explanation:nnn

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In a classroom, which comparison would a teacher most likely use for describing a mole?
mihalych1998 [28]

Answer:

If you were speaking of the term mole as a skin condition then a teacher might compare it to a beauty spot. In the position your were speaking of it as an animal they might compare it to mouse a rat or a hamster. In the case you were speaking of a mole as a secret agent then a teacher might compare them to a double agent.

8 0
3 years ago
A 70.0-g piece of copper metal at 54.0 °C is placed in 50.0 g of water at 26.0 °C. If the final temperature of the water and met
KatRina [158]

The specific heat in, J /g °C of copper is 0.386J/g°C

HOW TO CALCULATE SPECIFIC HEAT CAPACITY OF A SUBSTANCE:

  • The specific capacity of a substance can be calculated using the following formula:

Q = m × c × ∆T

Where;

Q = quantity of heat absorbed or released (J)

m = mass of substance (g)

∆T = change in temperature (°C)

c = specific heat capacity (J/g°C)

For a colorimeter, the following equation applies:

m.c.∆T (water) = - m.c.∆T (metal)

  • For water:

m = 50g

c = 4.184 J/g°C

∆T = 29.2 - 26°C = 3.2°C

  • For copper:

m = 70g

c = ?

∆T = 29.2 - 54°C = -24.8°C

m.c.∆T (water) = - m.c.∆T (metal)

50 × 4.184 × 3.2 = -(70 × c × -24.8)

669.44 = 1736c

c = 669.44 ÷ 1736

c = 0.386J/g°C

Therefore, the specific heat in, J /g °C of copper is 0.386J/g°C

Learn more at: brainly.com/question/16787162?referrer=searchResults

7 0
2 years ago
2 horizontal and parallel lines are intersected by 2 diagonal lines to form a triangle with exterior angles. The top angle of th
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Answer:

x = 63

z = 117

x + z = 180

Explanation:

edg 2020

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Use a spreadsheet and construct curves for the following titrations. Calculate potentials after the addition of 10.00, 25.00, 49
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Storm surge, high wind, heavy rains which is most dangerous
Ymorist [56]
The answer is storm surge

6 0
3 years ago
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