Essential Water (VCE SSCE Chemistry): Flashcards
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% of Earth's water that is fresh
% of Earth's water that is fresh
2.5%
% of fresh water accessible for human use
% of fresh water accessible for human use
0.5%
Definition of potable water
Definition of potable water
Clean drinking water treated for safe human consumption
Chemical formula of water
Chemical formula of water
Max hydrogen bonds per water molecule
Max hydrogen bonds per water molecule
4
Boiling point of water
Boiling point of water
100°C
Density of solid ice (g mL⁻¹)
Density of solid ice (g mL⁻¹)
0.917 g mL⁻¹
Density of liquid water at 25°C (g mL⁻¹)
Density of liquid water at 25°C (g mL⁻¹)
0.997 g mL⁻¹
Reason ice floats in liquid water
Reason ice floats in liquid water
Ice has lower density than liquid water
Temperature at which water has maximum density
Temperature at which water has maximum density
Approximately 4°C