As the concrete has cement, gravel, crushed rocks, sand, and water of different physical state and can be separated by physical methods hence it should be called as a mixture.
As the components have significant physical boundaries which clearly identify their presence, the mixture is heterogeneous and not homogeneous.
Thus this is a concrete is a heterogeneous mixture of cement, gravel, crushed rocks, sand, and water
I think that different liquids have different freezing points because every liquid consists of different atoms and different things that make up the atom causing them to have different freezing points.
Answer:
The answer is B an open system allows energy and mass to move in and out of it
Hope it helps
High temperature and low pressure<--Most likely
Low temperature and high pressure<----Less likely.
So the answer to this is Low temperature and high pressure.
Answer:
A,B,C,D
Explanation:
all of the above : )
if you had to go with a certain answer go with C im most sure of
A weak acid will not completely dissociate in water due to strong forces
