This is needed to do work,change position,or move matter

Chemistry

1 answer:

Vlad1618 [11]3 years ago

7 0

What is this subject it’s sorta hard to understand the question

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Two students performed a lab to see how the density and salinity of water are related. Both beakers began with the same salinity

saveliy_v [14]

Answer: the water avaperatid

because of the heat lamp

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Explanation:

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3 years ago

Which of these metals would you expect to be found in nature as a deposit of relatively pure element?

lora16 [44]

1. Which of these metals would you expect to be found in nature as a deposit of relatively pure element? The Answer is: Lithium. And question 2 is: Potassium - furthest away from lead in the reactivity series.

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3 years ago

Electrolysis hydrocloric acid and both of the electrode uses a platinium electrode... what will happen to both of the electrode?

Rasek [7]

Answer:

Hydrogen gas is evolved at the cathode and chlorine gas at the anode.

Explanation:

The solution will ionise. Hydrogen ions, H+, will migrate to the negative cathode ( where the current leaves the solution and chloride ions Cl- will migrate the the positive anode.

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3 years ago

The natural decay of nuclides occurs_____. in a random manner. in a predictable manner. in an exact time. by a whole life.

Eddi Din [679]

A natural decay of nuclides occurs in: A.) random manner.

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4 years ago

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Which of the following types of electromagnetic radiation have higher frequencies than visible light and which have shorter freq

natta225 [31]

Answer:

Higher frequency than visible light - Ultraviolet light, X-rays, and Gamma rays

Lower frequency than visible light - Infrared radiation, microwaves, and Radio waves

Explanation:

The frequencies of electromagnetic radiations vary according to their wavelengths. The relationship between the frequency and wavelength of the waves is expressed such that:

λ = c/f, where λ = wavelength, c = speed of light, and f = frequency.

Thus, there is an inverse relationship between the wavelength and the frequency of electromagnetic waves.

The order of the electromagnetic waves based on their frequency from the lowest to the highest is radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma-rays

Hence, electromagnetic waves with higher frequencies than visible light include ultraviolet light, X-rays, and Gamma rays while those with lower frequencies include Infrared radiation, microwaves, and Radio waves.

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3 years ago