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Paha777 [63]
3 years ago
8

Which statement describes what happens in a chemical reaction?

Chemistry
2 answers:
NNADVOKAT [17]3 years ago
6 0

Answer: pic

Explanation:

plz

sp2606 [1]3 years ago
3 0

Answer:

4. matter is neither created nor destroyed

Explanation:

The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.

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Obtain the valence shell configuration of Al and S from their positions in the periodic table.
lutik1710 [3]

Answer:

Al: 3

S: 6

Explanation:

Al is in Group III. This means that it has 3 valence electrons.

S is in Group VI. This means that it has 6 valence electrons.

I hope this helps :)

3 0
3 years ago
Disadvantages of continued polymers
saw5 [17]

Answer:

Cannot withstand very high temperature as all plastics melt down very soon as compared to metals

4 0
4 years ago
What does the Periodic Table tell us about?
Ronch [10]

The periodic table lists all the elements, with information about their atomic weights, chemical symbols, and atomic number. The arrangement of the periodic table leads us to visualise certain trends among atoms.

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3 years ago
Which statement is NOT correct about the classification of amino acids?
nordsb [41]

Answer:

The correct answer is D.

Explanation:

Amino acids can be classified <u>depending on the side chain structure</u> in

  1. acidic
  2. basic
  3. neutral
  4. aliphatic
  5. aromatic
  6. sulfur containing amino acids.  

Aspargine is a <em>neutral amino acid</em> that has a key role in <u>glycoproteins biosynthesis.</u> Aspargine helps the body to resist fatigue and contributes to a smooth functioning of the liver.  

7 0
3 years ago
Please help! Its for chem
valentinak56 [21]

Answer:

can you give me more info

Explanation:

i think it d or c

i got charts to help

7 0
3 years ago
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