Which of these is NOT a physical property f water?
Can be used to dissolve organic substances
Has a boiling point of 100 ° C
Has a density of 19cm3 at 40 °C
Has a freezing point of 0 ° C
is neutral to litmus
Correct answer is A
No explanation has been provided for this answer.
The following gases are diatomic EXCEPT
Fluorine
Helium
Hydrogen
Nitrogen
Oxygen
Correct answer is B
No explanation has been provided for this answer.
XZ
XZ2
X2Z
X2Z3
X3Z2
Correct answer is D
No explanation has been provided for this answer.
The reaction of hydrochloric acid and calcium trioxocarbonate (IV) produces
calcium chloride, carbon (IV) oxide and water
calcium chloride, and trioxocarbonate (IV) acid
calcium hydroxide, carbon (IV) oxide and chlorine gas
calcium hydroxide, carbon (IV) oxide and water
calcium metal and water.
Correct answer is A
No explanation has been provided for this answer.
Boyle’s law
Collision theory
Laws of chemical combination
Molecular motion in liquids and gases
Vibrational motion in liquids.
Correct answer is D
No explanation has been provided for this answer.