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3 years ago

Identify the difference between natural and artificial dyes.

1 answer:

3 0

The difference between natural dye and synthetic dyes is largely that synthetic dyes are chemically manufactured whereas natural dyes are purely developed from nature.

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Which are the nutrients essential to us

Harlamova29_29 [7]

Explanation:

carbohydrate,fat,protein, vitamin, mineral, water

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3 years ago

Read 2 more answers

Determine the oxidation numbers of the elements in each compound of the following reaction. Determine what has been oxidized/red

PSYCHO15rus [73]

Answer:

mnemonic isjdndbeudxhdnrhcurhrfkrr

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3 years ago

What process is required for minerals to crystallize from magma

OleMash [197]

Answer:

Chemical differentiation

Explanation:

The process by which minerals crystallize out of magma is termed chemical differentiation. Some times, it is referred to as magmatic differentiation.

Minerals have different properties and at certain environment, it comfortable for the settle out of magma.
Some minerals can crystallize out at very high temperature.
Some will form at medium temperature whereas, some are low temperature minerals.
Based on the properties of the minerals in a melt, a minerals will differentiate at various temperature and pressure regimes.

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3 years ago

Determine how the following bonds are made using Lewis dots structures

garri49 [273]

Answer :

1.) $Ca^{2+}+2Cl^-\rightarrow CaCl_2$

Calcium has 2 valence electrons and chlorine has 7 valence electrons. For neutral molecule, 2 chlorine atoms share their valence electrons with 1 calcium atom. The bonds are formed between the calcium and chlorine atom.

2.) $Al^{3+}+3F^-\rightarrow AlF_3$

Aluminium has 3 valence electrons and fluorine has 7 valence electrons. For neutral molecule, 3 fluorine atoms share their valence electrons with 1 aluminium atom. The bonds are formed between the aluminium and fluorine atom.

3.) $H^{+}+Cl^-\rightarrow HCl$

Hydrogen has 1 valence electron and chlorine has 7 valence electrons. For neutral molecule, 1 chlorine atom share their valence electrons with 1 hydrogen atom. The bonds are formed between the hydrogen and chlorine atom.

4.) $2H^{+}+S^{2-}\rightarrow H_2S$

Hydrogen has 1 valence electron and sulfur has 6 valence electrons. For neutral molecule, 2 hydrogen atoms share their valence electrons with 1 sulfur atom. The bonds are formed between the hydrogen and sulfur atom.

5.) $Cl^{-}+Cl^-\rightarrow Cl_2$

Chlorine has 7 valence electrons. For neutral molecule, 1 chlorine atom share their valence electrons with 1 chlorine atom. The bonds are formed between chlorine and chlorine atom.

The lewis-dot structure image is shown below.

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3 years ago

When the molecules in the air become less dense (as in the process of hearing), ______ has occurred.

Dahasolnce [82]

Explanation:

Whenever there occurs a decrease in the density of a substance then this is known as rarefaction.

For example, when particles of a gas become more dispersed or spread out then it means they have gained more kinetic energy. As a result, there will occur a decrease in mass of the gas and increase in volume of the gas.

As density is mass divided by volume. Hence, decrease in mass will also lead to a decrease in density of the gas.

Therefore, we can conclude that when the molecules in the air become less dense (as in the process of hearing), rarefaction has occurred.

4 0

4 years ago