Answer:
The cube A is magnesium, the cube B is aluminum and the cube C is silver.
Explanation:
Density is defined by the expression
where m is the mass and V is the volume, therefore:
- Density of the cube A:

- Density of the cube B:

- Density of the cube C:

Solving for mass:



And all the three cubes have the same mass, so:

Therefore:
(Eq.1)
(Eq.2)
Solving for
in Eq.1:

Replacing values for the volume:


As we know the density of the aluminum is
, so replacing this value for
:


that is the density of the magnesium.
Solving for
in Eq.2:





That is the density of the silver.
Therefore the cube A is magnesium, the cube B is aluminum and the cube C is silver.
Answer:
What is the best definition of "vehicle of contamination"?
-A preventive vaccine
-Any source of biological -contamination
An ambulance
-A food truck
Answer:
D. The reactant concentrations decrease.
Answer:
Velocity = distance / time
if distance is same and time is 1/2
Velocity = distance / time/2
velocity = 2 (distance /time)
Velocity,= 2 * velocity
Velocity will be doubled
Answer:
The law of conservation of mass states that the quantity of the mass can neither be added to, neither can it be removed. The greater picture's mass will always be the same amount.