The tiny holes in a sponges outer layer that take in water are called ostia, I believe. Hope it helps
Answer:
Chlorine is the element located in period 3, group 17 of the periodic table.
Explanation:
Answer:
the citric acid in lemon juice is a natural bleach, or oxidizing agent. It whitens hair by chemically reducing your hair's color pigment, or melanin. When exposed to the sun, the citric acid accelerates the bleaching process
5. 1 hydrogen, 1 Nitrogen, 3 oxygen
Answer:
pOH=9.9
Explanation:
pH=-log[H+]= -log[0.0000877]
=4.06
pOH+ pH=14
pOH=14-4.06= 9.91
