the answer is B. solution
The solubility of calcium carbonate in water is very low; so calcium carbonate form a suspension.
Traction : Larger objects (eg. boulders, rocks) roll along the river bed. Suspension : Minerals like clay or sand are carried alone the river without any contact with the river bed. Solution : Rocks and gravel bounce along the river bed Saltation : The water dissolves minerals like calcium in the water which become invisible to the naked eye.
It is usually a suspension of calcium hydroxide.
addition of calcium chloride to a cell suspension promotes the binding of plasmid DNA to the cell surface ,which can then pass into the cell.
Chalk (Calcium carbonate, CaCO3) is a compound.
Carbon dioxide form a milky suspension of calcium carbonate in calcium hydroxide; hydrogen doesn't react. But hydrogen react with oxygen when a flame exist.
It will make the water cloudy. to remove calcium carbonate simply lower pH in the pool to 7.0 or lower and calcium carbonate will redissolve back into suspension and water will clear up. You can get this characteristic by adding sodium Carbonate too quickly.
When excess calcium hydroxide is added to limewater, a suspension of calcium hydroxide particles remains, giving it a milky aspect, in which case it has the common name of milk of lime. Milk of lime is an alkaline solution with a pH of 12.3.
precipitate means done with very great haste and without due deliberation; separate as a fine suspension of solid particles When two chemicals in solution react to form a compound which is not soluble in water, the insoluble chemical appears as small undissolved particles = a precipitate. Sodium sulphate and calcium nitrate are both soluble forming clear solutions in water. Mix the solutions and they switch around to sodium nitrate (soluble) plus calcium sulphate (insoluble) and you get a milky looking suspension of calcium sulphate which is the precipitate.
precipitate means done with very great haste and without due deliberation; separate as a fine suspension of solid particles When two chemicals in solution react to form a compound which is not soluble in water, the insoluble chemical appears as small undissolved particles = a precipitate. Sodium sulphate and calcium nitrate are both soluble forming clear solutions in water. Mix the solutions and they switch around to sodium nitrate (soluble) plus calcium sulphate (insoluble) and you get a milky looking suspension of calcium sulphate which is the precipitate.
it is a suspension because; suspension = a solid and a liquid mixing which is what chalk dust and water is. :)
Ca is the chemical symbol for calcium, an element. It is an alkali metal with atomic number 20. ------------------------------------------- The above is true, however if the element Ca is present in a solution then it will be present as part of an Ionic compound in solution, note a solution is not a mixture, element or compound, it is a SOLUTION. An insoluble compound of Ca could be present in liquid, in which case you would have a suspension. A suspension is a mixture.