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luda_lava [24]
3 years ago
10

A student in class drops an element on the floor and it shatters quite easily. Which property does this best exemplify?

Chemistry
1 answer:
KatRina [158]3 years ago
6 0

Answer:

Glass

Explanation:

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For the reaction 2N 2O(g) ⇌ O 2(g) + 2N 2(g), what happens to the equilibrium position if the pressure increases?
scZoUnD [109]

Answer:

Equilibrium will shift in forward direction.

Explanation:

According to Le Chatelier's Principle, the change in any state of the equilibrium say temperature, volume, pressure, or the concentration, the equilibrium will oppose these changes and will shift in such a way that the effect cause must be nullified.

Effect of the change in the pressure :

If the pressure is increased , the equilibrium of the reaction is disturbed , so , the reaction will move in order to decrease the pressure.

The molecules of gas are responsible for the pressure and thus to nullify this effect or to decrease the pressure, the equilibrium will shift in a direction where there are less number of gaseous molecules.

For the reaction given ,

2N₂O (g) ⇄ O₂(g) + 2N₂(g)

<u>The number of gaseous molecules in the product (2) is less than the reactant (2 + 1), so the equilibrium will shift in forward direction.</u>

5 0
3 years ago
According to the kinetic molecular theory, which statement describes the particles in a sample of an ideal gas?
MakcuM [25]

Answer:

The motion of the gas particles is random and in a straight-line. A sample of gas is contained in a closed rigid cylinder.

I hope this helps you if not soo advance sorry :)

3 0
3 years ago
Be sure to answer all parts. the equilibrium constant (kp) for the reaction below is 4.40 at 2000. k. h2(g) + co2(g) ⇌ h2o(g) +
svetoff [14.1K]
When we have the balanced reaction equation is:

H2(g)  + CO2(g) ↔ H2O(g)  + CO (g)

a) first, to calculate ΔG° for the reaction: 

we will use this formula:

ΔG° = -RT㏑Kp

when R is R- rydberg constant = 8.314J/mol.K

and T is the temperature in Kelvin = 2000 K

and Kp = 4.4 

so, by substitution:

ΔG° = - 8.314 *2000 *㏑4.4

        = - 24624 J/mol = - 24.6 KJ/mol

b) to calculate ΔG so, we will use this formula:

ΔG = ΔG° + RT㏑Qp

So we need first, to get Qp from the reaction equation:

when Qp = P products / P reactants

                 =  PH2O*PCO / PH2 * PCO2

                 = (0.66 atm * 1.2 atm) / (0.25 * 0.78)

                 = 4.1 

so by substitution:

ΔG = -24624 + 8.314*2000*㏑4.1

      = -1162 J/mol = - 1.16 KJ/mol
7 0
4 years ago
Read 2 more answers
What subatomic particle is responsible for combining the atoms together to form a new substance?
Tanya [424]
The answer to this question would be: electron

When atoms bind together, that mean they shared at least one electron. The electron is located on the outer side of the atoms so the electron from an atom can collide with other electrons from another atom. The protons and neutron can't make bind because it was in the middle of the atom and won't collide each other.
7 0
4 years ago
Read 2 more answers
If a force of 1.4N is applied to a block with a mass of 7kg, what is the acceleration of the block in meters per second squared?
Anton [14]

Answer:

<h2>0.2 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

f is the force

m is the mass

From the question we have

a =  \frac{1.4}{7} =  \frac{1}{5}   \\

We have the final answer as

<h3>0.2 m/s²</h3>

Hope this helps you

5 0
3 years ago
Read 2 more answers
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