Mixtures are combinations of materials that can be separated by in most cases time. For instance, oil and water is a mixture. You can tell this by placing the two chemicals in a container and shaking them. They will mix and look like one substance, however, they will separate into the two liquids after some time is given. Assuming that "pure substance" is a solution, a substance is similar to a mixture, but the materials used in the solution are not separable. Over time the materials in the containing will not separate. I believe this is the answer you are looking for.
Respuesta:
Yes.
Explicación:
Las teorías se pueden mejorar o modificar a medida que se recopila más información para que la precisión de la predicción sea mayor con el tiempo.
Explanation:
First, we will calculate the feed rate of alum as follows.
= 228000 g/day
Converting this amount into g/min as follows.
= 158 g/min
Now, the chemical equation will be as follows.
= 0.151 mmol 
= 15.15 mg 
/L
For precipitate:
= 7.88 
= 29.9 
