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IrinaK [193]
3 years ago
10

If silicon has a charge of -4, how many electrons does it have

Chemistry
1 answer:
Ksenya-84 [330]3 years ago
4 0

It has 4 because electrons are negative.

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Pls help!!!!!! In your own words, explain how chemists properly represent the law of conservation of matter in their chemical
WINSTONCH [101]

Answer:

They represent it by ensuring that the number of atoms of each element (matter) in the reactant side is the same as the product side

Explanation:

The law of conservation of matter stated that matter can neither be created nor destroyed. Chemical equations involve combining atoms of elements. The compounds combined by chemists are called REACTANTS while the produced compounds are called PRODUCTS.

In order to conform to the law of conservation of matter, the same quantity of matter present in the reactants must be present in the products. This means that the number of atoms of each element (matter) in the reactant side must be the same as the product side. For example;

C6H12O6 + 6O2 → 6CO2 + 6H2O

In this chemical equation for photosynthesis, number of atoms in the reactant side (6 carbon, 12 hydrogen, 18 oxygen) are the same as that in the product side (6 carbon, 12 hydrogen, 18 oxygen), hence, this obeys the law of conservation of mass.

In a nutshell, chemists chemists properly represent the law of conservation of matter in their chemical equations by making sure that same number of atoms of reactants is present in the products.

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3 years ago
Shay constructed a scientific model of the carbon cycle. She included plants, animals, industry, fossil fuels, and the atmospher
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3 0
3 years ago
What is the relationship between the amount of space and the state of matter
zhenek [66]
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IrinaVladis [17]

Answer:

See answer below

Explanation:

a.) Lithium Chloride, LiCl is soluble in water.

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c.) Barium Carbonate, BaCO3 is insoluble in water.

d.)Potassium, K2 is soluble in water.

e.) Iron (III) Nitrate Fe(NO3)3 is soluble in water.

  • All nitrates (NO3) are soluble in water.
  • Alkali metals are soluble in water.
  • Chlorides are soluble in water with the exception of AgCl and a few others.
  • Carbonates are generally insoluble in water.
6 0
3 years ago
What is a characteristic of every combination reaction?
Scilla [17]
A combination reaction<span> is a </span>reaction<span> in which two reactants combine to form one product. It is also called a synthesis reaction. A characteristic to this type of reaction would be that there would always be only one product. Hope this answers the question. Have a nice day. </span>
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