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algol [13]
3 years ago
10

PLEASE HELP ASAP I'LL GIVE BRAINLIEST: What would be the correct electron dot structure for silicon?

Chemistry
1 answer:
Vinvika [58]3 years ago
7 0
The second is the correct answer ^.^.
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What is the density of aluminum in grams per cubic centimeter?
oksano4ka [1.4K]

Answer:

Density of aluminum is 2.699 g/cm^3

Explanation:

Density of a given material can be defined as the mass of the substance present in a unit volume. Mathematically it can be expressed as:

Density = \frac{Mass}{Volume}

Units: g/cm^3 or kg/m^3

Aluminum (Al) is one the lightest element and is known to have a density of 2.699 g/cm^3

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2 years ago
When substances are evenly spread throughout a mixture, it is called ____________________?
harina [27]
The answer is _Dissolving_.

Hope tis helps

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the development and use of the ______ a common and important piece of laboratory equipment, led scientist to the discovery of se
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The answer is the Microscope.

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3 years ago
PLSS HELP! The gas carbon dioxide is a pure substance. Which of the following is true about carbon dioxide? (4 points)
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Answer:

The answer is option A..

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2 years ago
Write the chemical equation for the dissolution reaction of solid iron(iii) hydroxide in water. include the phases of all specie
Allushta [10]
When solid <span>iron (iii) hydroxide is dissolved into water, it ionizes or it dissociates into ions. These ions are the iron (iii) ions and the hydroxide ions. Iron(III) oxide is classified as a base when in aqueous solution since it produces hydroxide ions. It is a weak base so it does not completely dissociate into the solution. The dissociation equation would be:

Fe(OH)3 <-----> Fe3+ + OH-

To write a complete reaction, the reaction should be balanced wherein the number of atoms of each element in the reactant side and the product side should be equal. Also, the phases of the substances should be written. We do as follows:

</span>
Fe(OH)3 (s)  <-----> Fe3+ (aq) + 3OH- (aq)
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3 years ago
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