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nadya68 [22]
3 years ago
15

Select the best answer to complete each sentence.

Chemistry
1 answer:
Nady [450]3 years ago
7 0
A. soluble
correct me if i’m wrong , hope this helped :)
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Mamont248 [21]

1,000 x 9.8 = 9800 Newtons

hope this helps

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The average kinetic energy of the atoms that make up a substance which is changing from a liquid to a solid is
IrinaK [193]
It would be turned back to liquid 

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Carbon dioxide is released in________and taken in by plants in ______
alex41 [277]

Answer: A

Explanation:

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4 years ago
A sample of gas at 10.0 ATM and 5.0 °C increases in tempature of 35 °C. If the volume is unchanged, what is the new pressure?
agasfer [191]

Answer:

11.08 atm

Explanation:

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

Initial pressure (P₁) = 10 atm

Initial temperature (T₁) = 5 °C

Final temperature (T₂) = 35 °C

Final pressure (P₂) =?

Volume = constant

Next, we shall convert celsius temperature to Kelvin temperature. This can be obtained as follow:

T(K) = T(°C) + 273

Initial temperature (T₁) = 5 °C

Initial temperature (T₁) = 5 °C + 273

Initial temperature (T₁) = 278 K

Final temperature (T₂) = 35 °C

Final temperature (T₂) = 35 °C + 273

Final temperature (T₂) = 308 K

Finally, we shall determine the final pressure of the gas as follow:

Initial pressure (P₁) = 10 atm

Initial temperature (T₁) = 278 K

Final temperature (T₂) = 308 K

Final pressure (P₂) =?

P₁/T₁ = P₂/T₂

10/278 = P₂/308

Cross multiply

278 × P₂ = 10 × 308

278 × P₂ = 3080

Divide both side by 278

P₂ = 3080 / 278

P₂ = 11.08 atm

Therefore, the final pressure of the gas is 11.08 atm

3 0
3 years ago
A student was given a pale blue transparent liquid in a beaker. The student gently heated the solution until the liquid had vapo
Vikki [24]
This is so as the liquid you are heating is copper (II) sulfate (I think so) so when you heat it to saturation, there will still be some water molecules left behind, which will allow copper (II) sulfate crystals to be formed since there is water of crystallisation. so the formula is (CuSO4.5H2O).

Hence, if you heat it for a longer period of time when all the water has evaporated, you will obtain a white powder (CuSO4) as crystals cannot form without water of crystallisation
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3 years ago
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