Answer:
I'm pretty sure the answer is A. Ca3(PO4)2.
Answer:
25 valence electrons.
Explanation:
Hello!
In this case, based on the attached picture, you can see that the chlorate ion has three oxygen atoms and one chlorine ion, whereas you can see there is a coordination bond (two arrows) from chlorine to oxygen which means that oxygen receives two electrons from chlorine in order to complete its octet and to allow chlorine to not exceed the octet. It means there is another oxygen completes its octet via the Cl=O bond and the the last oxygen is negatively charged because it is missing one bond to attain its octet even thought chlorine actually completes its octet.
Therefore, this ion has seven valence electrons from chlorine and 18 valence electrons from the three oxygen atoms, which means it has 25 valence electrons overall.
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The answer is d because the pupa os the stage when the insects change to adults
Answer:
temperature
Explanation:
Temperature is the only factor that affects the solubility of all solutes whether they are solid, liquid or gaseous.
Solubility of solutes is temperature dependent.
When one substance dissolves in another, they are said to be soluble in it.
Pressure as a factor only affects the dissolution of gases.
Volume and number of moles do not affect solubility
Answer:
Explanation:
Balanced forces are opposite in direction and equal in size.
Balanced forces are in a state of equilibrium.