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igor_vitrenko [27]
2 years ago
6

What is the mass number of sodium

Chemistry
2 answers:
lina2011 [118]2 years ago
3 0

Answer:

Explanation:

Sodium mass number 23, 11 electrons

Magnesium: neutrons = 12

aluminum : atomic number  = 13

phosporus : protons = 15

Pavlova-9 [17]2 years ago
3 0

Answer:

23

Explanation:

You need to add protons and neutrons to get mass

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When we combine two simpler substances into a more complex one, it is known as a reaction.
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3 years ago
List 2 extensive properties and 3 intensive properties of a 5.0g, 1 cm3 cube of silver
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Properties of matter can be broadly classified into two categories:

Physical properties which usually involve a change in the state of matter and Chemical properties which involve a change in the chemical composition of matter.

Now, physical properties can be further classified as:

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Intensive: these do not depend on the amount of the substance eg: density, color, melting point, boiling point

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3 0
3 years ago
Sean drew this diagram and labeled an unknown gas as gas A. Which gas does A represent?
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Explain transmethylation reaction of amino acids.
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Answer:Transamination, a chemical reaction that transfers an amino group to a ketoacid to form new amino acids. This pathway is responsible for the deamination of most amino acids. This is one of the major degradation pathways which convert essential amino acids to non-essential amino acids (amino acids that can be synthesized de novo by the organism).

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