You can predict its acidity (pH).
The formula for pH is: pH = log { 1 / [H+] } = log { 1 / (1*10^-12) }
=> pH = log {10^12} = 12.
Remember that acids have pH between 1 and less than 7 and basic compounds have pH greater than 7 and less than 14.
So, you can predict that this product is a base (alkaline).
<span>Waste products in the cell accumulate and are eventually moved out of the cell and eliminated.
Given that these products are waste, and can be harmful to the organism, they need to be eradicated, and thrown out of the system.
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Not sure if this is correct but i would choose the steel tray.
<span>B. when rock is physically broken into smaller pieces</span>