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Law Incorporation [45]
2 years ago
5

What makes matter change from one state to another?

Chemistry
1 answer:
posledela2 years ago
4 0

Answer: Adding or removing energy from matter

Explanation:

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Based upon the information provided in the class, which of the following bond types is the strongest? Question options:
Zigmanuir [339]

Answer: A hydrogen bonding is interaction between lone pair and hydrogen atom. An Ion-Dipole interaction is the interaction between an ion formed and a dipole. Dipole forms because of the electronegativity difference between two atom participating in the bond formation, and an ion is formed when an atom gains or lose electron. This ion-dipole interaction is strongest interaction.

Therefore, The right choice is (B)

7 0
3 years ago
Which element melts at room temperature?
just olya [345]
Francium is an element that melts at room temperature. Francium is a highly reactive element, and only contains one valence electron, which is very ironic in my opinion. 
4 0
3 years ago
Read 2 more answers
Select all the species that are ions.<br><br> HCl<br> NaCl<br> NH4+<br> H2PO4-<br> CCl4<br> H3O+
nata0808 [166]

Answer:

NH₄⁺

H₂PO₄⁻

H₃O⁺

Explanation:

  • An ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
  • Ion may be positively charged "cation" or negatively charged "anion".
  • Neutral molecule has a net charge of zero.

<em>So, the species that are ions are: </em>

NH₄⁺

H₂PO₄⁻

H₃O⁺

4 0
3 years ago
Five Biomedical Importance of Nucleotides
Brut [27]

Explanation:

BIOMEDICAL IMPORTANCE

In addition to serving as precursors of nucleic acids, purine and pyrimidine nucleotides participate in metabolic functions as diverse as energy metabolism, protein synthesis, regulation of enzyme activity, and signal transduction.

4 0
2 years ago
Why are the noble gases (group 18) inert?
dalvyx [7]

The noble gases are relatively unreactive because they have a stable octet of valence electrons.

Thus, they do not tend to undergo reactions in which they will gain or lose valence electrons,

However, <em>only He, Ne, and Ar are inert</em>. Kr and Xe combine with other highly reactive elements to form stable compounds.

8 0
2 years ago
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