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kati45 [8]
1 year ago
5

PLEASE HELP ME!!

Physics
1 answer:
statuscvo [17]1 year ago
4 0

The balanced chemical equation is 2 AlI₃ + 3 HgCl₂\rightarrow 2 AlCl₃ + 3 HgI₂ for the given chemical reaction.

<h3>What is chemical equation?</h3>

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

Learn  more about chemical equation,here:

brainly.com/question/28294176

#SPJ1

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How many revolutions does the object make during the first 4.0 s?
IRISSAK [1]
<span>Radians/second * seconds = Radians BUT the angular velocity is not constant in this case so we need to integrate ω over time. We know this integral is the area under the curve which we can find using the plot: 20rad/s*2s + (10+5) + 10*0.4 = 59 radians 59 radians * 1rev/2π radians = 59/2π = 9.4 revolutions</span>
8 0
3 years ago
¿Qué significa que un automóvil viaje con una rapidez de 45[(Km.)⁄(Hr.)]?
netineya [11]

Responder:

Compruebe amablemente la explicación

Explicación:

¿Qué significa que un automóvil viaje con una rapidez de 45 [(Km.) ⁄ (Hr.)]?

Si se dice que un automóvil viaja a una velocidad de 45 km / h, entonces el automóvil cubre una distancia de 45 km en una hora. 45 km / h es una derivación de la velocidad de desplazamiento obtenida de la relación;

Velocidad = distancia / tiempo

Velocidad = 45 km / 1 h.

Distancia = velocidad × tiempo

Distancia = 45 km / h × 1 h

Distancia = 45 km

Por lo tanto, a esa velocidad, se cubrirá una distancia de 45 km por cada hora que se mueva.

4 0
3 years ago
I need to know the temperature changes
Arada [10]
What are you asking? And more info needs to be provided.
5 0
3 years ago
When we kept the Earth's mass the same, but shrank its size, we saw that had an effect on its escape speed. Albert Einstein used
nadezda [96]

Answer:

Check the explanation

Explanation:

The escape velocity is the velocity needed by any object to overcome the gravitational force of the planet on which it’s present. Now we know that the gravitational force is directly proportional to the mass of the planet and inversely proportional to the distance of the object from the center of planet.

If we keep the mass of earth constant and decrease the size of the earth than this will decrease the distance between the object and the center of the earth and thus the gravitational force that will act on the body will increase substantially which will in turn increase the value of the escape velocity.

The value of escape velocity will keep on increasing as the size of the earth will shrink till it reaches to a point when the value of escape velocity becomes more than the speed of light and since it’s impossible to travel with a speed greater than the speed of light and therefore at this point it will become impossible for a spacecraft to escape the earth.

7 0
3 years ago
A possible means for making an airplane invisible to radar is to coat the plane with an antireflective polymer. If radar waves h
Marina CMI [18]

Answer:

The thickness is  t =  0.5615 \ cm    

Explanation:

From the question we are told that

    The wavelength of the of the rader waves is  \lambda =  2.92 \ cm

     The index of refraction of the polymer is  n  = 1.30

The thickness is mathematically represented as

             t =  \frac{\lambda }{4 n }

Substituting values

            t =  \frac{2.92}{4 *  1.30 }

          t =  0.5615 \ cm

6 0
3 years ago
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