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3 years ago

In the laboratory how could you determine if a solid as an ionic or metallic bond

1 answer:

Colt1911 [192]3 years ago

3 0

Simply put, the malleability of a compound will determine the bond. Metallic bonds are very malleable, while ionic bonds are very brittle.

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Consider these phylogenetic trees. The first tree is based on physical characteristics. The second tree is based on structure, g

kati45 [8]

Im not 100% sure, but I think the answer is C. If not, Im sorry for bothering you.

7 0

4 years ago

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What's the difference between a conductor and an insulator? I'll mark you as brainliest

irina [24]

conductor are defined as the materials or substances that allow electricity to flow through them. Also, conductors allow heat to be transmitted through them. Examples of conductors are metals, the human body, Earth and animals. The human body is a strong conductor.

Any material that keeps energy such as electricity, heat, or cold from easily transferring through is an insulator. Wood, plastic, rubber, and glass are good insulator.

Explanation:

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3 years ago

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How many sulfur atoms are there in 21.0 g of al2s3?

ValentinkaMS [17]

Given the mass of aluminum sulfide $Al_{2}S_{3}$ = 21.0 g

Molar mass of $Al_{2}S_{3}$ = $2 * Molar mass of Al + 3 *molar mass of S = 2(27g/mol)+3(32.g/mol)=150.g/mol$

Calculating the moles of $Al_{2}S_{3}$ :

$21.0 g *\frac{1 mol}{150 g} = 0.14 mol Al_{2}S_{3}$

Each mole $Al_{2}S_{3}$ has 3 mol S.

Each mole S constitutes $6.022*10^{23} atoms of S$

Calculating atoms of S in 0.14 mol $Al_{2}S_{3}$ :

$0.14 mol Al_{2}S_{3} *\frac{3mol S}{1 mol Al_{2}S_{3} }*\frac{6.022*10^{23}atoms S }{1 mol S}$

= $2.53 * 10^{23} atoms of S$

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4 years ago

Which part of the atom is directly involved in chemical changes? A. the electron B. the energy levels C. the nucleus D. the char

7nadin3 [17]

The part of the atom that is involved in chemical changes is A. electron. The electrons that are in the most outer shells are called valence electrons which are easily removed or shared to form bonds. Valence electrons are related to the number of valence electrons

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3 years ago

Brainliest.....If you give me a random answer you will be reported.... Also you will lose any chance to obtain a brainlest from

Georgia [21]

Answer:

im pretty sure its b

Explanation:

im sorry if im wrong i tried my best

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3 years ago