HELP ASAP PLEASEE SHOW ALL WORK PLEASE
Balancing Word Equations

(Remember the following are diatomic: H2, N2, O2, F2, Cl2, Br2, I2)

Write the chemical formulas for each reactant and product. Watch out for upper and lower cases!

Subscripts are on the bottom right. Acids have the (aq).

Balance the chemical equation. Must show your work on the balancing (the counting of atoms).

1. Dihydrogen monoxide ® hydrogen + oxygen

2. copper (II) nitrate + dihydrogen monoxide ® nitric acid + copper (II) hydroxide

3. phosphorus + oxygen ® diphosphorous pentoxide

4. iron + hydrochloric acid ® iron (II) chloride + hydrogen

5. sodium hydroxide + phosphoric acid ® sodium phosphate + dihydrogen monoxide

a polar bond is formed when electrons are shared unevenly between atoms

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.