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3 years ago

When a person pushes off a wall with 15N of force,how much force does the wall push back

1 answer:

5 0

Newton's third law of motion states that for every action force, there is an equal and opposite reaction force so that means that the wall is pushing you with the same amount of force that you put on it.

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13C and 14C are isotopes of 12C, which has 6 electrons, 6 protons, and 6 neutrons. What is the arrangement of subatomic particle

Degger [83]

6 electrons, 6 protons, and 8 neutrons.
This is because in isotopes of the same element proton and electron number are the same, it is only the number of neutrons that changes.

5 0

3 years ago

You are asked to determine the identity of an unknown liquid and can measure only one physical property. You see the liquid and

Julli [10]

The physical property you measured is the boiling point of the liquid.

Therfore, if the liquid has a boiling point of 100°C, it turns from liquid state to vapor when you heat it up to 100°C.

To conclude, The liquid should be pure water. Because only pure water has a boiling point of 100°C, using this physical property, we can test whatever liquid ans see if it's pure water or not, this test is called the boiling point test.

5 0

3 years ago

-Watch the video

Elena-2011 [213]

Answer:

maybe you should watch the video...

we can't help you because we don't have the vid.

Explanation:

7 0

2 years ago

Read 2 more answers

What is the prediction for shampoo, honey and corn syrup from lowest viscosity to highest viscosity?

kirza4 [7]

Answer:

Shampoo < corn syrup < honey

Explanation:

Shampoo flows fairly easily from the bottle, so would say it is the least viscous.

Both honey and corn syrup are quite viscous.

However, honey can range from liquid to solid at room temperature.

I have not seen solid corn syrup, so I would predict that it is less viscous than honey at a given temperature.

4 0

3 years ago

Identify all of the following three changes that would shift the equilibrium of the Haber [HAH-bur] process to the right: a) Add

Vladimir [108]

Answer:

a).Adding hydrogen gas : Forward direction

b) Adding an inert gas

At constant pressure : Backward direction
At constant Volume : No change

c) Increasing the volume of the container:Backward direction

Explanation:

According to Le-Chatelier's principle = Any disturbance is created in the equilibrium , it will shift the equilibrium in such a way to reduce disturbance.

This disturbance can be : Change in concentration , pressure, temperature , Addition of gas etc.

Temperature : when temperature is increased for endothermic reaction . The equilibrium shift in forward. For exothermic reaction , on increasing temperature ,equilibrium shift backward.

Pressure : On increasing pressure the equilibrium shifts towards less number of gaseous molecules.

Volume : Since volume varies inversely with pressure . It's effect is opposite to that produced by pressure change i.e On increasing Volume the equilibrium shifts towards more number of gaseous molecules.

On Addition of Inert gas : The equilibrium shift toward the side where more gaseous molecules are present.

Concentration : On increasing concentration , the equilibrium will shift such that the substance added get removed .

Haber Process :

$N_{2}(g)+3H_{2}(g)\rightarrow 2NH_{3}(g)$

This is exothermic reaction (H = negative)

Molecules of gases are more on left side(reactants) than right side(product)

a) Adding hydrogen gas :

According to Le-Chatelier's principle ,The equilibrium will shift in a direction where the Hydrogen gas is consumed (removed)

Hence Equilibrium shift in forward direction

b) Adding an inert gas : There are two situation

If inert gas is added at constant pressure: Total Volume is increased, so equilibrium will shift in direction where there is increase in number of molecule(Le-Chatelier's).Here, equilibrium shift in backward direction
If inert gas is added at constant Volume :No change in equilibrium.This because if inert gas is added pressure will increase but there is no change in moles per unit volume(constant) of gases.

c) Increasing the volume of the container:

If total Volume is increased, the number of molecules per unit volume decrease.In order to maintain the equilibrium constant , the equilibrium shift in direction where there is increase in number of molecule(Le-Chatelier's).

In this case Backward direction.

3 0

3 years ago