Answer:
I don't remember how to label it, but it is 20.
Explanation:
The answer is 20 because once you dat the rock in the water, that is how much it changed.
The correct answer is: C. “Tina’s mother has severe FBAO. Tina should begin administering back blows followed by abdominal thrusts if the problem persists.”
Explanation: I did my study and took the test, this was right. :)
The periodic table is a systematic arrangement of the elements. They are arranged according to their atomic number, the number of protons (which in the case of atoms is also the number of electrons) of each atom.
Answer:
Explanation:
In this case, we have to remember that relationship between the <u>avogadro's number</u> and the "mol" concept:
With this in mind, we can do the <u>first conversion</u>:
Now, if we calculate the molar mass of 
. <u>The atomic mass of O is 16 g/mol and the atomic mass of H is 1 g/mol</u>, so:
(16*1)+(1*2)= 18 g/mol
In other words, 
, so:
I hope it helps!
