Can you please help me it is urgent! A student is given a sample of an unknown liquid to test in the laboratory. The student thinks that the liquid is water. Which of the following properties of the sample is most helpful to determine if the liquid is water? (A) color of the liquid

(B) mass of the liquid

(C) the volume of the liquid

(D) the boiling point of the liquid

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

narendra modi is currently the pm of india

explanation:

a electronegativity decreases beacuse the size of nucleus is bigger.