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solong [7]
4 years ago
8

What will happen to vinegar in a few days

Chemistry
1 answer:
drek231 [11]4 years ago
4 0
From what I experienced I gets really loud with the smell but other than that nothing happens just the smell gets stronger
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Bill and Tom are both towing wagons. Bill's wagon weighs 10 pounds, and Tom's wagon weighs 20 pounds. Bill is pulling his wagon
Bogdan [553]

Answer:

  • <em><u>B) Bill's wagon is moving 4 times faster than Tom's. </u></em>

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Explanation:

The motion of the wagons is determined by the net force that acts upon them, according to Newton's second law of motion:

  • Force = mass × acceleration ⇒ acceleration = Force / mass

From your data, you can fill this table to compare the accelerations:

                          Bill's wagon   Tom's wagon

mass (lb)                 10                      20

force                       2F                      F

acceleration           2F/10                 F/20

Find the ratio between both accelarations:

  • Bill's wagon acceleration / Tom's wagon acceleration
  • (2F/10) / (F/20) = (2 × 20 / 10 ) = 4

Meaning that the acceleration of Bill's wagon is 4 times the acceleration of Tom's wagon.

Assuming, that both wagons start from rest, you can obtain the speeds from the kinematic equation for uniformly accelerated motion:

  • Speed = acceleration × time, V = a × t.

Call the acceleration of Tom's wagon X, then the acceleration of Bill's wagon will be 4X.

So, depending on the time, using V = a × t, the speeds will vary:

t (s)                                      1         2         3        4

Speed Tom's wagon         X        2X      3X     4X  

Speed Bill's wagon           4X      8X     12X    16X

Concluding that Bill's wagon is moving 4 times faster than Tom's (option B).

3 0
3 years ago
Read 2 more answers
In the following reaction, identify the oxidized species, reduced species, oxidizing agent, and reducing agent. Be sure to answe
gtnhenbr [62]

Answer :

Cl_2 is reduced species.

KI is oxidized species.

Cl_2 is oxidizing agent.

KI is reducing agent.

Explanation :

Redox reaction or Oxidation-reduction reaction : It is defined as the reaction in which the oxidation and reduction reaction takes place simultaneously.

Oxidation reaction : It is defined as the reaction in which a substance looses its electrons. In this, oxidation state of an element increases. Or we can say that in oxidation, the loss of electrons takes place.

Reduction reaction : It is defined as the reaction in which a substance gains electrons. In this, oxidation state of an element decreases. Or we can say that in reduction, the gain of electrons takes place.

Reducing agent : It is defined as the agent which helps the other substance to reduce and itself gets oxidized. Thus, it will undergo oxidation reaction.

Oxidizing agent : It is defined as the agent which helps the other substance to oxidize and itself gets reduced. Thus, it will undergo reduction reaction.

The balanced redox reaction is :

Cl_2(aq)+2KI(aq)\rightarrow 2KCl(aq)+I_2(aq)

The half oxidation-reduction reactions are:

Oxidation reaction : 2I^-\rightarrow I_2+2e^-

Reduction reaction : Cl_2^++2e^-\rightarrow 2Cl^-

From this we conclude that the 'KI' is the reducing agent that loses an electron to another chemical species in a redox chemical reaction and itself gets oxidized and 'Cl_2' is the oxidizing agent that gain an electron to another chemical species in a redox chemical reaction and itself gets reduced.

Thus, Cl_2 is reduced species.

KI is oxidized species.

Cl_2 is oxidizing agent.

KI is reducing agent.

7 0
4 years ago
Determine the packing efficiency of a simple cubic unit cell that contains one atom with a metallic radius of 175 pm.
PilotLPTM [1.2K]

Answer:

the packing efficiency is 52.36%

Explanation:

Given the data in the question;

simple cubic unit cell that contains one atom with a metallic radius of 175 pm;

we know that;

Edge length of Simple cubic (a) is related to radius of atom (r) as follows;

a = 2r

since radius r = 175 pm

we substitute

a = 2 × 175 pm

a = 350 pm

Now we get the volume unit;

Volume of unit cell = a³ = ( 350 pm ) = 42875000 pm³

Next we get Volume of sphere;

Volume of Sphere = \frac{4}{3}πr³

Volume occupied by 1 atom = \frac{4}{3} × π × ( 175 pm )³

=  \frac{4}{3} × π × 5359375 pm³

= 22449297.5 pm³

Now, the packing efficiency = ( Volume occupied by 1 atom / Volume of unit cell ) × 100

we substitute;

packing efficiency = ( 22449297.5 pm³ / 42875000 pm³ ) × 100

= 0.523598 × 100

= 52.36%

Therefore, the packing efficiency is 52.36%

8 0
3 years ago
Does the temperature of the thermometer show the melting, freezing,<br> or boiling point of water
soldier1979 [14.2K]

Answer:

Depending on the thermometer, it may have the ability to go as high or low as melting, freezing or boiling point for water. Just make sure you know the boiling, melting and freezing points in Celsius, Fahrenheit and/or Kelvin and read your thermometer accordingly.

Explanation:

4 0
3 years ago
A car walks 3 m north and then 15 m south. What distance did the cat walk
GaryK [48]
18m. It does not matter what direction the cat walked as long as it walked in a certain direction for said amount of distance
4 0
3 years ago
Read 2 more answers
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