Answer is: Filtering a mixture will separate it into substances.
Pure substance is made of only one type of atom (element) or only one type of molecule, it has definite and constant composition with distinct chemical properties. Pure substances can be separated chemically, not physically, that is difference between pure substances and mixtures.
Filtration is use for separation of heterogenous mixture, for example, sand and water.
Answer:
Which of the following is a reduction half reaction
Explanation:
The viscosity of a liquid is a measure of its resistance to flow. Water, gasoline, and other liquids that flow freely have a low viscosity. ... The molecules within a liquid are surrounded by other molecules and are attracted equally in all directions by the cohesive forces within the liquid.
Answer:
0.0953M
Explanation:
First, let us calculate the number of mole present in 12.5g of Na2CrO4.
Molar Mass of Na2CrO4 = (23x2) + 52 +(16x4) = 46 + 52 +64 = 162g/mol
Mass of Na2CrO4 = 12.5g
Number of mole =?
Number of mole =Mass /Molar Mass
mole of Na2CrO4 = 12.5/162 = 0.0772mol
Now, we can calculate for the molarity as follows:
Mole = 0.0772mol
Volume = 810mL = 810/1000 = 0.81L
Molarity =?
Molarity = mole /Volume
Molarity = 0.0772mol/0.81L
Molarity = 0.0953M
Answer:
A molecular formulae________
will tell you how many and what
kinds of atoms are in a molecule, but not how they are
arranged.
