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Chemistry

2 answers:

Natali5045456 [20]3 years ago

6 0

Answer:

gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.

Explanation:

hope that helps! (:

arlik [135]3 years ago

4 0

Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves

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Which formula represents 1,2-ethanediol?

Oliga [24]

Answer:

1) C2H4(OH)2

Explanation:

A 1,2-ethanediol has an ethane structure consisting of two Carbon atoms with a hydrogen from each carbon substituted by a hydroxyl group. This makes it a 1,2-diol.

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Which element has a mass number of 32?

jeka94

I am pretty sure it’s D.Sulfur

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The smaller radius is primarily a result of the magnesium atom having ??

Aleksandr [31]

Answer:

A larger nuclear charge :)

Explanation:

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3 years ago

Explain what a chemical reaction is and moles

Delvig [45]

Answer:

A process during which chemical bonds between atoms are broken and new ones are formed, producing one or more substances.

Moles are the amount of substance that contains as many particles.

Explanation:

A chemical reaction is when a chemical change occurs for example when a nail comes into contact with air and is then exposed to air it begins to rust. It forms a red-brown substance which changes the chemical composition of the original compound.

Examples of chemical reactions:

Combustion

Oxidation (rusting)

Cooking an egg

Photosynthesis

Digestion

Fireworks

Paper Burnin

The mole is the amount of substance that contains as many particles (molecules, ions or atoms) as there are in 12g of carbon.

1 mol is the amount of substance that contains the same number of particles as there are atoms in 12.0 g of carbon-12 and that number is referred to as Avogardo's constant (6.022 x $10^{23}$ ).