Not (A) because a molcule with pH 7 is neutral eg, water
Not (B) because a molecule with pH >7 is basic/alkali which is the opposite of acid.
This leaves C and D.
Lets take one of the most commonly known acids, hydrochloric acid which has the formula HCl.
When acids are added to water they split up (dissociate).
HCl cannot split to give hydroxide ions but can give hydrogen atoms (which are actually hydrogen ions > H+)
so the answer is D
Amino Acids. Proteins are the most diverse biomolecules on Earth, performing many functions required for life. Protein enzymes are biological catalysts, maintaining life by regulating where and when cellular reactions occur. Structural proteins provide internal and external support to protect and maintain cell shape.
Hope this helps :)
Answer:
Deprivation, competition for jobs, commodities and housing etc are the causes of xenophobia.
Explanation:
There is a great xenophobia occur in South Africa because of many causes such as deprivation, competition for jobs, commodities and housing etc. Xenophobia is refers to hatred of local people against people belongs and come from other countries. xenophobia attacks occur in South Africa in the year 1994 and 2008 in which immigrants faced discrimination and violence in South Africa that leads to the death of many people.
Answer:
Explanation:
Certain types of volcanic ash do not dissolve easily in water. Instead, they clump on the surface of the ocean in pumice rafts. These rafts can clog salt water intake strainers very quickly, which can result in overheating of shipboard machinery dependent on sea water service cooling.
Answer:
Explanation:
Because of their underground lifestyle, caecilians have little need to see or hear. So, their eyes are tiny in some species or hidden under the skin or skull in other species, making just gray bumps for eyes.