C3 - Stoichiometry Flashcards
1
Q
Metal + Acid –>
A
salt + hydrogen gas
2
Q
Metal + water –>
A
metal hydroxide + hydrogen gas
3
Q
Metal + steam –>
A
metal oxide + hydrogen gas
4
Q
Metal + oxygen –>
A
metal oxide
5
Q
Base (commonly oxide or hydroxide)+ acid –>
A
salt + water
6
Q
Acid + carbonate –>
A
salt + water + carbon dioxide gas
7
Q
gases exist as either (3)
A
1) Monoatomic molecules –> as single atoms e.g. Neon, argon (mainly group 8)
2) Diatomic molecules –> O₂, H₂, Cl₂ (most gases)
3) Polyatomic molecules –> CO₂
