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kobusy [5.1K]
1 year ago
11

Please answer as fast as you can

Chemistry
2 answers:
ki77a [65]1 year ago
7 0

Answer:

Probably answer D.

Explanation:

It makes the most sense because it's just changing the temp of the water  

Elan Coil [88]1 year ago
6 0
D, no harmful chemicals were added to the water.
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1 year ago
A piece of unknown metal weighs 217 g . When the metal absorbs 1.43 kJ of heat, its temperature increases from 24.5°C to 39.1°C.
umka21 [38]

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The specific heat of the metal is 0.451 J/g°C (This could be iron).

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<u>Step 1:</u> Data given

Mass of the unknown metal = 217 grams

The metal absorbs 1.43 kJ of heat

The temperature increases from 24.5°C to 39.1 °C

<u>Step 2:</u> Calculate the specific heat of the metal

q = m*c*ΔT

⇒ q = the heat transfer = 1.43 kJ

⇒ m = the mass of the unknown metal = 217 grams

⇒ c = the specific heat of the metal =  TO BE DETERMINED

⇒ ΔT = the change of temperature = T2 - T1 = 39.1 - 24.5 = 14.6 °C

q = 1430 J = 217g * C * 14.6 °C

C = 0.451 J/ g°C

The specific heat of the metal is 0.451 J/g°C (This could be iron).

5 0
2 years ago
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follow hypothesis bud

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yep

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