A scientist observes that the electrical resistance of a superconducting material drops to zero when the material is cooled
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Answer: 6 moles of NaCl are produced when 2 moles of sodium phosphate reacts with 3 moles of calcium chloride
Explanation:
The balanced chemical equation is:
According to stoichiometry :
2 moles of require 3 moles of
Thus both are limiting reagent as both will limit the formation of product.
As 2 moles of reacts with 3 moles of
give = 6 moles of
Thus 6 moles of NaCl are produced when 2 moles of sodium phosphate reacts with 3 moles of calcium chloride
Most liquids expand when they are heated and contract when they are cooled.
A thermometer consists of a bulb of liquid connected to a thin capillary tube.
When the liquid is heated, it expands and moves up the capillary column. When the liquid cools, it contracts and moves back down the column.
You can determine the temperature by reading the position of the liquid against a graduated temperature scale.
