1.) what is this group of words?
the cats ran.
a.) a good sentence
b.) comma splice
c.) run-on
d.) fragment

2.) what is this group of words?
the giant turtle named bob.
a.) a good sentence
b.) comma splice
c.) run-on
d.) fragment

3.) what is this group of words?
rolling around in the dirt.
a.) a good sentence
b.) comma splice
c.) run-on
d.) fragment

1. A, a good sentence

2. D, fragment

3. D, fragment

Explanation:

the first sentence is a complete thought, it has a subject and a verb. Both 2 and 3 are fragments, or the beginnings of sentences.

- 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

the answer to this question is 3.