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Ksju [112]
3 years ago
9

Which statement describes the transfer of heat energy that occurs when an ice cube is added to an insulated container with 100 m

illiliters of water at 25 degrees Celsius?
1. Both ice cubes and the water will lose heat energy
2. Both the ice cubes and water gain heat and energy
3. The Ice Cube's gain heat energy and the water loses heat energy
4. The Ice Cube loses heat energy and the water gains heat energy
Chemistry
1 answer:
nadya68 [22]3 years ago
4 0
Number 3 is the most likely answer
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A sample of gas initially has a volume of 2.25 L at 350 K and a pressure of 1.75 atm. What will be sample pressure if the volume
IRINA_888 [86]

Answer:

8.44 atm

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 2.25 L

Initial temperature (T₁) = 350 K

Initial pressure (P₁) = 1.75 atm

Final volume (V₂) = 1 L

Final temperature (T₂) = 750 K

Final pressure (P₂) =?

The final pressure of the gas can be obtained as illustrated below:

P₁V₁/T₁ = P₂V₂/T₂

1.75 × 2.25 / 350 = P₂ × 1 / 750

3.9375 / 350 = P₂ / 750

Cross multiply

350 × P₂ = 3.9375 × 750

350 × P₂ = 2953.125

Divide both side by 350

P₂ = 2953.125 / 350

P₂ = 8.44 atm

Thus, the final pressure of the gas is 8.44 atm.

7 0
3 years ago
Non-metal ions are negative because...
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Explanation:

its b cz the gain electrons i think

6 0
3 years ago
I need the correct answers
bogdanovich [222]

Answer:

Acids: Tastes Sour

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Base: Bitter

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The half life is the time needed.
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protons

there aint rlly an explanation tbh

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