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3 years ago

Which properties are affected by temperature?

Chemistry

1 answer:

maw [93]3 years ago

7 0

Answer:

Please give Brainliest!

Explanation:

Material properties are dependent on the temperature. The tensile strength, yield strength and modules of elasticity decrease with increasing temperature. It should be expected that fatigue properties are also affected by the temperature.

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Zinc reacts with excess hydrochloric acid to produce zinc chloride and hydrogen gas. What happens to the reaction rate if you in

agasfer [191]

The correct response I believe is D. The reaction rate increases because the probability of collisions increases as there are more Zn atoms to react.

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what type of science allows us to alter the DNA of a corn plant so that it will contain more protein?

fiasKO [112]

Answer:

biotechnology

Explanation:

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Why cant chemical changes be reversed

kotykmax [81]

Answer:

Throughout the explanation section, the reason behind the given statement is described.

Explanation:

The chemicals thus produced were indeed opposite or separate from the reaction mixture, this same reaction wouldn’t change when it's more balanced than some of the reactants.
Another reason is that the development of advanced organisms, as well as chemical alterations, is irreversible throughout nature cant undo the chemical modifications.

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3 years ago

Which of the following is a correct inference that one can make about the burning of gasoline?

VLD [36.1K]

Answer:

It’s a physical change

Explanation:

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3 years ago

Describe Rutherford's contribution to the atomic model.

Nady [450]

Answer:

Rutherford's experiment, also known as

$\alpha - scattering \: experiment$

supports the existence of neutrons and the nucleus.

Explanation:

In the above diagram, Rutherford was trying to explain his contributions using thin foils of gold and other metals as targets for alpha particles from a radioactive source.

He observed that the majority of particles penetrated the foil either undeflected or with only a slight deflection. But, every now and then an alpha particle was scattered(or deflected) at a large angle..

According to Rutherford, most of the atoms must be empty space. This explains why the majority of alpha particles passed through through the gold foil with little or no deflection. The atoms positive charges, Rutherford proposed are all concentrated in the Nucleus, which is a dense central core within the atom.

Whenever an alpha particle came close to a nucleus in the scattering experiment, it experienced a large repulsive force and therefore a large deflection. Moreover, an alpha particle coming towards a nucleus would be completely repelled and its direction would be reversed. The positively charged particles in the Nucleus are called Protons.

I hope you find this useful... Have a lovely day. 

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3 years ago