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Pie
3 years ago
15

Amount of valence electrons KMnO4

Chemistry
1 answer:
Fantom [35]3 years ago
8 0
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What is a spontaneous reaction: a) One that produces large amounts of heat b) one that occurs without added energy )one that occ
Orlov [11]

Answer:

A

Explanation:

6 0
4 years ago
What do you predict will happen to the volume inside a container when pressure & temperature remains constant but the number
Pani-rosa [81]

Answer:

<u>increase</u>

Explanation:

<u>The Ideal Gas Equation</u>

  • PV = nRT
  • V = nRT/P
  • V ∝ n

The volume of a gas is directly proportional to the number of moles it contains. Hence, if the number of particles is increased, then the volume inside the container will <u>increase</u>

7 0
2 years ago
What is the heat of combustion per mole of quinone?
Lesechka [4]
A 2.200-g sample of quinone (C6H4O2) is burned in a bomb calorimeter whose total heat capacity is 7.854<span> kJ/°C. The temperature of the calorimeter increases from 23.44 to </span>30.57 °C<span>. </span>
4 0
3 years ago
I have an unknown initial volume of gas
earnstyle [38]

Answer:

V₁ = 0.025 Liters = 25 ml

Explanation:

P₁ = 6 Atm      P₂ = 7800mm/760mm/Atm = 0.01 Atm

V₁ = ?              V₂ = 29 Liters

T₁ = 115 K        T₂ = 225 K

P₁V₁/T₁ = P₂V₂/T₂ => V₁ = P₂V₂T₁/P₁T₂

V₁ = (0.01 Atm)(29L)(115K)/(6 Atm)(225K) = 0.025 Liters = 25ml

5 0
3 years ago
Uranus is much larger than Earth, with a surface area of 8.10 × 1015m2 with an atmosphere of low-density gases: 82.5% H2, 15.2%
sdas [7]

Answer:

mass of Uranus: 9.31x10^22 kg

Explanation:

As I stated in the comments, the question in this problem is to calculate the mass of Uranus, given it's conditions.

Now, we have the data of the atmosphere gases, but for calculations, this data is irrelevant.

To calculate the mass of Uranus, we can use the second law of Newton which is:

F = m * a (1)

In this case, the only Force exerting here would be the weight so:

F = m * g (2)

And the force of Uranus, can also be expressed in terms of pressure and Area so:

F = P * S (3)

Now, if we replace (3) in (2) we have:

P * S = m * g

Solving for m:

m = P * S / g (4)

We have all the data, therefore, let's replace it in the above expression to calculate the mass of Uranus:

m = 1x10^8 * 8.1x10^15 / 8.7

m = 9.31x10^22 kg

This is the mass of Uranus

8 0
4 years ago
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