Answer:
In the presence of UV light, ethane will react with bromine in a substitution reaction. UV light is the condition under which the reaction will occur so it is written above the arrow in the chemical equation. As the reaction proceeds, the intensity of the re-brown colour of the bromine water decreases.
Answer:
Gj j
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hope it helps:)
Answer:
As the larger quantity
As the liquid which dissolves a solid
Explanation:
Solvent is the substance mostly in liquid form which dissolves the solute(e.g solid). The solvent also, is larger when compared to the solute.
Answer : The correct option is, cobalt.
Explanation :
Magnet : It is defined as a type of material which produces the magnetic field. Or we can say that a material that has the property of attracting an iron piece and producing the magnetic field.
The elements iron, cobalt and nickel are usually used in the making of magnets.
Hence, the element used to make magnets is, Cobalt.
Answer:
0.250L of solution. 0.250 moles of solute.
Explanation:
As you can see in the image, there is a beaker with an amount of solution. 1/2L are 500mL and each line of the beaker represents 100mL. That means the volume of the solution is approximately 250mL = 0.250L
Molarity is an unit of concentration defined as the moles of solute per liter of solution. A solution that is 1.000M contains 1.000 moles of solute per liter of solution.
As the volume of the solution is 0.250L, the moles are:
0.250L * (1.000mol/L) = 0.250 moles of solute
