Answer:
near an open flame
Explanation:
if your hair is not tied back near open flames in combination with most hair care products it would turn you into a living torch
<span>NH4+ and NO3- because barium phosphate is insoluble </span>
Answer:
Is a substance that can maintain certain range of pH
Explanation:
A buffer is mixture of two salts that are complementary, one salt is acid and another is basic, but since then share some part of their structure, if you add to this mixture another acid, the basic salt can absorb it and still maintaining the same pH. If you pour a base, the acid salt will absorb it and again the final pH will remain the same. So the buffers are used to maintain the same pH does not matter if you add small quantities of an acid or base.
Compound is defined as a pure substance which is made up of two or more different elements present in the fixed ratio and they can be separated into smaller substances by means of chemical processes.
Thus, a substance made up of two oxygen atoms for each carbon atom describes a compound as the substance is made up of two different elements which are present in the fixed ratio.
Hence, option c that is a substance made up of two oxygen atoms for each carbon atom describes a compound.
