GROUNDWATER CHEMISTRY EXAM WITH COMPLETE SOLUTIONS 100% VERIFIED
LATEST UPDATE!!
What are the 3 main type of chemical bonds? - (ANSWER)1) Covalent bonds
2) Ionic bonds
3) Hydrogen bonds
What is a covalent bond? - (ANSWER)A bond where atoms share electrons
What is a non polar covalent bond? - (ANSWER)A bond where electrons are shared equally
What is a polar covalent bond? - (ANSWER)A bond where electrons are shared unequally, creating
partial charges.
What is an ionic bond? - (ANSWER)A bond is formed when one atom transfers electrons to another
Cation vs anion - (ANSWER)Cation: one atom loses an electron and becomes positively charged
Anion: another atom gains an electron and becomes negatively charged
What is a hydrogen bond? - (ANSWER)A WEAK attraction between:
- a partial positive hydrogen attached to a polar bond
- a partial negative atom, like N or O
Why do different molecules have different shapes? - (ANSWER)VSPER theory: Electron pairs around
atoms REPEL each other, arranging themselves in specific shapes
How does molecular shape affect function? - (ANSWER)Shape determines:
- how molecules interact
- how they recognize each other
Shape = function
LATEST UPDATE!!
What are the 3 main type of chemical bonds? - (ANSWER)1) Covalent bonds
2) Ionic bonds
3) Hydrogen bonds
What is a covalent bond? - (ANSWER)A bond where atoms share electrons
What is a non polar covalent bond? - (ANSWER)A bond where electrons are shared equally
What is a polar covalent bond? - (ANSWER)A bond where electrons are shared unequally, creating
partial charges.
What is an ionic bond? - (ANSWER)A bond is formed when one atom transfers electrons to another
Cation vs anion - (ANSWER)Cation: one atom loses an electron and becomes positively charged
Anion: another atom gains an electron and becomes negatively charged
What is a hydrogen bond? - (ANSWER)A WEAK attraction between:
- a partial positive hydrogen attached to a polar bond
- a partial negative atom, like N or O
Why do different molecules have different shapes? - (ANSWER)VSPER theory: Electron pairs around
atoms REPEL each other, arranging themselves in specific shapes
How does molecular shape affect function? - (ANSWER)Shape determines:
- how molecules interact
- how they recognize each other
Shape = function