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Svetradugi [14.3K]
3 years ago
8

The net force on a car traveling at a constant speed in a straight line is zero. In which of these would the net force remain ze

ro?
A. The car speeds up to pass a big truck.

B. The car gets a flat tire and slows down.

C) In an instant the car comes to a complete stop.

D) The driver swerves around a piece of iron in the road.
Chemistry
1 answer:
dexar [7]3 years ago
5 0
I believe the answer is <span>In an instant the car comes to a complete stop. 

The net force is calculated through:
F = m x a
m = mass
a = Acceleration

When the car came into a complete stop, the acceleration become 0

Which means that


F = m x a

F = m x 0

F= 0 </span>
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Of the choices below, which gives the order for first ionization energies? Of the choices below, which gives the order for first
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Answer:

AL>Ar

Explanation:

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When a solution of 0.1 M Mg(NO3)2 was mixed with a limited amount of aqueous ammonia, a light white, wispy solid was observed, i
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<u>Answer:</u> The net ionic equation is written below.

<u>Explanation:</u>

Net ionic equation of any reaction does not include any spectator ions.

Spectator ions are defined as the ions which does not get involved in a chemical equation. They are found on both the sides of the chemical reaction when it is present in ionic form.

The chemical equation for the reaction of magnesium nitrate and aqueous ammonia (ammonium hydroxide) is given as:

Mg(NO_3)_2(aq.)+2NH_4OH(aq.)\rightarrow Mg(OH)_2(s)+2NH_4NO_3(aq.)

A white precipitate of magnesium hydroxide is formed in the above reaction.

Ionic form of the above equation follows:

Mg^{2+}(aq.)+2NO_3^-(aq.)+2NH_4^+(aq.)+2OH^-(aq.)\rightarrow Mg(OH)_2(s)+2NH_4^+(aq.)+2NO_3^-(aq.)

As, ammonium and nitrate ions are present on both the sides of the reaction. Thus, it will not be present in the net ionic equation and are spectator ions.

The net ionic equation for the above reaction follows:

Mg^{2+}(aq.)+2OH^-(aq.)\rightarrow Mg(OH)_2(s)

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8 0
3 years ago
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Transformation in chemistry is scientifically used to explain the process of changing one compound to another in a chemical reaction.

<h3>What is transformation?</h3>

The word "transformation" has a very special significance in chemistry. We know that in English, to transform would simply imply to change from one form to another. This is not quite far from its meaning in the parlance of chemistry.

The word transformation is normally applied in the area of chemical reactions especially as it has to do with reaction with in organic chemistry. It has to do with the change from one molecule to another and this is of great importance in the discussion of synthetic chemistry.

As such, the word transformation in chemistry is scientifically used to explain the process of changing one compound to another in a chemical reaction.

Learn more about chemical transformation:brainly.com/question/8210521

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8 0
1 year ago
A 2.0 L container of nitrogen gas had a pressure of 3.2 atm. What volume would be necessary to decrease the pressure to 1.0 atm
beks73 [17]

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Explanation:

When all other variables are held constant, you can use Boyle's Law to find the missing volume:

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In this equation, "P₁" and "V₁" represent the initial pressure and volume. "P₂" and "V₂" represent the final pressure and volume. You can find the theoretical volume by plugging the given values into the equation and simplifying.

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6.4 = V₂                                                        <----- Divide both sides by 1.0

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2 years ago
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