4. Many antibiotics work by preventing bacteria from building a strong cell wall that can protect them. For example, the antibiotic penicillin keeps bacteria from
making the most common molecule that is needed to build their complete cell
walls. This causes the cell wall to burst and the bacteria to die. Would antibiotics
also work to destroy viruses?
A. Yes, because all viruses have cell walls.
B. Maybe, because only some viruses have cell walls.
C. No, because viruses have a cell membrane but no cell wall.
D. No, because viruses do not have cells at all.

umm a because

Explanation:

my name jeff

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

it means there are 3 atoms of oxygen