Answer:
The answer to your question is: 10.67 g/ml
Explanation:
graduated cylinder mass empty= 50 g
+ 30 ml of water = 120 g
+ a rock the level rises 75 ml total mass = 250 gr
density of metal = ?
Formula
density = mass / volume
Process
mass of water = 120 - 50 = 70 g
volume of rock = 75 ml
mass of the rock = 250 - 50 - 120 = 80 g
density of rock = 80 / 75 = 10.67 g/ml
The first law<span>, also known as </span>Law<span> of Conservation of </span>Energy<span>, states that </span>energy <span>cannot be created or destroyed in an isolated system.</span><span>
So answer 1</span>
C. The approach of the scientific method varies from one scientist to another.
As the H bond of the butanol is more effective and strong than Van der Waals forces of the ether the surface tension in alcohol is more intensive.
So the correct answer is e)