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Alexxx [7]
3 years ago
8

Suppose Rutherford has not seen any alpha particles deflected back from the gold foil how would this mostly likely have affected

scientific understanding of the structure of an atom?
Chemistry
1 answer:
Ivan3 years ago
3 0

he would not be able to tell the world about the presence of positive charges that is protons, in the center of an atom.

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Most galaxies in the universe are irregular-shaped galaxies. True False.
GalinKa [24]

Galaxies are the lump of matter. The shape of major galaxies is spiral shape. Thus, the given statement is false.

<h3>What are the shapes of galaxies?</h3>

The galaxies are the lump of dust and mass, held together by the gravitational force. The galaxies are continuously moving in the universe.

The formation of galaxies is believed to be due to the force of attraction between the components.

The shape of major galaxies is assumed to be spiral-shaped, however, the irregular shape galaxies are also present.

Thus, the given statement about the shape of galaxies is false.

Learn more about galaxies, here:
brainly.com/question/2905713

7 0
2 years ago
What is it with the name Sara these days!? XD
Komok [63]

66 mph

Explanation:

Average speed is the rate of change of distance with time:

       Average speed = \frac{Distance }{time}

Given parameters:

Starting point = 88mile marker

End of journey = 121mile marker

time = 30minutes = 0.5hr(60min = 1hr)

Solution:

The distance covered in this journey:

  Distance = End of journey - starting point = 121 mile - 88 mile = 33mile

 Average speed = \frac{33miles}{0.5hr}

                            = 66mph

The average speed of Sara's mum is 66mph

Learn more:

Average speed brainly.com/question/8893949

#learnwithBrainly

7 0
3 years ago
What property of a solution causes an acid–base indicator to change to different colors?
Sati [7]
The most common method to get an idea about the pH of solution is to use an acid base indicator. An indicator is a large organic molecule that works somewhat like a " color dye". Whereas most dyes do not change color with the amount of acid or base present, there are many molecules, known as acid - base indicators<span> , which do respond to a change in the hydrogen ion concentration. Most of the indicators are themselves weak acids.</span>
7 0
3 years ago
Read 2 more answers
10. Hydrogen and sulfur combine to make hydrogen sulfide.
Genrish500 [490]

Answer:

H₂S

Explanation:

8 0
4 years ago
Consider the reaction: A (aq) ⇌ B (aq) at 253 K where the initial concentration of A = 1.00 M and the initial concentration of B
Ugo [173]

Answer:

The maximum amount of work that can be done by this system is -2.71 kJ/mol

Explanation:

Maximum amount of work denoted change in gibbs free energy (\Delta G) during the reaction.

Equilibrium concentration of B = 0.357 M

So equilibrium concentration of A = (1-0.357) M = 0.643 M

So equilibrium constant at 253 K, K_{eq}= \frac{[B]}{[A]}

[A] and [B] represent equilibrium concentrations

K_{eq}=\frac{0.357}{0.643}=0.555

When concentration of A = 0.867 M then B = (1-0.867) M = 0.133 M

So reaction quotient at this situation, Q=\frac{0.133}{0.867}=0.153

We know,  \Delta G=RTln(\frac{Q}{K_{eq}})

where R is gas constant and T is temperature in kelvin

Here R is 8.314 J/(mol.K), T is 253 K, Q is 0.153 and K_{eq} is 0.555

So, \Delta G=8.314\times 253\times ln(\frac{0.153}{0.555})mol/K

                           = -2710 J/mol

                            = -2.71 kJ/mol

4 0
3 years ago
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