Answer:Ionic compounds are compounds composed of ions, charged particles that form when an atom (or group of atoms) gains or loses electrons. (A cation is a positively charged ion; an anion is a negatively charged ion.) Covalent or molecular compounds form when elements share electrons in a covalent bond to form molecules.
Answer:
C) K
Explanation:
K has an electron configuration of 2.8.8.1
Physical methods: reduce the temperature and pressure
Explanation:
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Answer:
H = 0.800g
S = 12.8g
Explanation:
Each mole of H2S contains 2 moles of H and 1 mole of S
so .400 mole of H2S will contain .800 mole of H and .400 mole of S
Mass = mole x Mr
Mass H = .800(1) = .800g
Mass S = .400(32) = 12.8g