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Anestetic [448]
3 years ago
6

In chemistry what contains the smallest amount of matter

Chemistry
1 answer:
Agata [3.3K]3 years ago
3 0
C. 2,500Dg Im pretty sure thats it
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The substances sodium (Na), oxygen (O2), and sodium oxide (Na2O) participate in this chemical reaction:
Andrews [41]

The chemical reaction involving sodium and oxygen as given in the reaction: 4Na + O2 → 2Na2O is a synthesis reaction.

<h3>What are chemical reactions?</h3>

Chemical reactions are changes which occur in the chemical composition of atoms of substances which results in the formation of new substances.

There are different types of chemical reactions such as:

  • synthesis reaction
  • displacement reaction
  • double displacement reactions

A synthesis reaction is a reaction in which two or more substances combine to form a new product.

Therefore, the chemical reaction involving sodium and oxygen as given in the reaction: 4Na + O2 → 2Na2O is a synthesis reaction.

Learn more about chemical reactions at: brainly.com/question/11231920

#SPJ1

7 0
2 years ago
For molecules with more than one ionizable groups, such as glycine, which of the following statements is true? For molecules wit
tester [92]

Answer: Option (a) is the correct answer.

Explanation:

The isoelectric point (pI) is actually the pH where a particular amino acid exists as a neutral molecule. This means that if pH equals pI then there will be no electric charge on the molecule.

Therefore, the statement at pH near the pI, nearly all the molecules carry no net charge, is true.

A buffer is composed of a solution of weak acid or base and salt of weak acid/base.So, when pH equals pI then there occurs no net charge. Hence, there will be no existence of conjugate acid-base pair.

Therefore, the statement when the pH is near the pI, the solution is near its maximum buffering ability, is false.

It is known that when pH is less than pI then there will be a net positive charge on the amino acid.

Hence, the statement at a pH near the pI, nearly all the molecules carry a net positive charge, is false.

When pH is greater than pI then amino acid will have a net negative charge. Hence, the statement at a pH near the pI, nearly all the molecules carry a net negative charge, is false.

Thus, we can conclude that out of the given options the statement at pH near the pI, nearly all the molecules carry no net charge, is true.

5 0
3 years ago
The intensity of a sound describes
baherus [9]
The intensity of a sound describes <em>its loudness at a particular distance</em><em />

Sound intensity is factored by the ear's sensitivity to the particular frequencies contained in a sound

Sound loudness describes the strength of the ear's perception of a sound.

These two points being said, if the ear is more sensitive to a frequency, that sound will be louder to us than sounds at different frequencies that might not be as sensitive to our ears. <em>So, the more intense the sound, the louder it is ;)</em>

Thank you for your question! I hope this helped! Have an amazing day! :D
5 0
3 years ago
Cells in this organism have different functions (jobs). Unicellular Organism or Multicellular Organism?
m_a_m_a [10]

Answer:

Multicellular Organism

Explanation:

Unicellular organisms are made of one cell. For example, bacteria. Multicellular organisms are made up of more than one cell. For example, humans.

If the entire organism is one cell, that one cell carries out all the functions. In contrast, we have different cells to carry out different jobs. E.g. blood cells, skin cells, stomach cells and many more.  

3 0
3 years ago
How many aluminum atoms are in 2.26 g of aluminum?
ki77a [65]

Answer:

Aluminum atoms are in 3.78 g of aluminum

02214076x10^23)8.4367659370640769254888x10^22 atoms, therefore there are 8.4367659370640769254888x10^22 atoms of Aluminum(Al) present in 3.78 grams of Aluminum(Al).

Explanation:

4 0
3 years ago
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