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Alexandra [31]
2 years ago
12

Start four fundamental laws of chemical Combinations and the scientist that stated each below (1) Law of Conseriation of mass (2

) Law of Definite proporsionis (3)Law of multiple proportions (4)Law of reciprocal propertion​
Chemistry
1 answer:
kirza4 [7]2 years ago
8 0

Explanation:

Law of conservation of matter/mass

the law of conservation of mass states that matter cannot be created nor destroyed but can be changed from one form to another.

by Antoine Lavoisier

Law of multiple proportions

the law of multiple proportions states that if two elements, A and B combine to form more than one chemical compound, the various masses of element A, which combine separately with a fixed mass of the other element B are in simple multiple ratios.

by chemist John Dalton

Law of reciprocal proportion

the law of reciprocal proportion states that the masses of several elements A, B, C

which combine separately with a fixed mass of another element D are the same as or simple multiples of, the masses in which A, B, and C themselves combine.

by Jeremias Richter

Law of definite proportions

the law of definite proportions states that all pure samples of a particular chemical combined contain similar elements combined in the same proportion by mass.

by Joseph Proust

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4 years ago
When there is a shifting of party allegiances within the electorate, it is called?
IgorLugansk [536]

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Select the correct boxes. which two elements have the same number of valence electrons?
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Carbon and silicon have same number of valance electrons which is 4 electrons

Now, Barium is a 2nd group element. So, it has two valance electrons.

Silicon is a 16th group element and it has 4 valance electrons as does the carbon. This is because they both stay in the same group in the periodic table.

Neon is a noble gas which has 8 valance electrons and stays in the 18th group.

Therefore, carbon and silicon have same number of valance electrons which is 4 electrons.

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The electrons in an atom's outermost shell, or energy level, are called valence electrons. For instance, the valence electrons of oxygen are six, with two in the 2s subshell and four in the 2p subshell.

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2 years ago
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Answer:

is equal to the total number of products

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