Structural Formulas for Covalent Molecules Is anyone good at doing these because I am so confused

1) C2H4

2) C3Cl8

3) SCl2

4) HClO2

5) HNO2

6) H2SeO3

7) H2S2

8) C2H6O2

9) C2H7N

10) C2NH3

11) C2PSH3

12) CH2O2PN

13) C2H2S

14) CH2O

15) N2H2

Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol

Akno3 solution containing 51 g of kno3 per 100.0 g of water is cooled from 40 ∘c to 0 ∘c. what will happen during cooling?

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent