The answer is c. hg (mercury)
<span>In the cytoplasm, ribsomal RNA (rRNA), a type of RNA, and
protein combine to form a nucleoprotein called a ribosome. The ribosome
serves as the site and carries the enzymes necessary for protein
synthesis. They are often takes the shape of small round particles
attached in the endoplasmic reticulum. The ribosome attaches itself to m-RNA
and provides the stabilizing structure to hold all substances in position as
the protein is synthesized. Several ribosomes may be attached to a single RNA
at any time. <span> </span></span>
<span>When two metals touch in the mouth, a small shock is created. this is known as a </span>galvanic action
Question one should be obvious..
Mass can't be created not destroyed no matter what, so even in a chemical reaction, the answer will remain. The first answer is correct.
Question two
No, because even when water is broken down, there should only be one molecule of oxygen. The fact there is two means it's incorrect.
Question three
Yes. The equation is perfectly balanced on both sides, so it's safe to say the value of mass remains constant.