They are used to pass food to the oral mouth at the center, and can attach to surfaces.
If pH is less than seven (pH<7), solution is acidic.
If pH is equal seven (pH = 7), solution is neutral.
If pH is greater than seven (pH > 7), solution is basic.
Some examples:
1) Acidic - gastric juices pH 1, lemon juice pH 2.2, tomato juice pH 4.
2) Neutral - salt solution pH 7.
3) Alkaline - baking soda pH 9, bleach pH 13.
pH is a numeric scale used to specify the acidity or basicity of an aqueous solution.
Hey there!
Mass = 5.6 Kg
Volume =8.2 L
D = m / V
D = 5.6 / 8.2
D = 0.6829 Kg/L
hope this helps!
The filter is a material with lots of tiny holes, that only the water can fit through. So flakes of leaf wont be in the water because it couldnt fit through the holes in the filter.
-.--.---./-------
The leaf flakes (periods) dont go through the filter (slash) but water (hiphens) does