Match the type of compound with its naming system. Not all choices will be used.

1. Stock System
2. Uses several different suffixes, depending on the types of ions involved
3. Greek Prefix System
4. Contains the prefix hydro- and the suffix- ic.
5. Named after the two ions involved and uses the suffix -ide

a) Binary covalent compound
b) Binary ionic compound
c) Polyatomic ionic compound
d) Ionic compound with multiple oxidation states
e) Hydrate
f) Binary acid
g) Ternary acid
I NEED THIS DONE ASAP!! I NEED TO KNOW WITHIN 2 HOURS

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.