Answer:
1×
Explanation:
To solve this, you will need to do multiple steps.
Firstly, you will have to convert to pOH from pH, which is done by simply subtracting 14-10 to get a pOH of 4.
Then, use the following formula to calculate the [OH-} concentration:
[OH-]= 
When converted to Scientific Notation<u>,</u> you get a resulting answer of
<u>1×</u>
<u>.</u>
Answer:
2 Mg + O2 → 2 MgO b. From the reaction in the previous question, how many moles of oxygen are needed to completely react with 12 moles of magnesium.
Explanation:
hope this helps
Answer:
An element is atoms with the same number of protons.
Explanation:
Protons, electrons, and neutrons.
I thinks it's true but I'm not sure