Answer: 48800g
Explanation:
Using the mathematical relation : Moles = Mass / Molar Mass
Moles = 488
Molar mass of CaCO3 = 40 + 12 + (16 x 3) = 100g/mol
Therefore
488 = mass / 100 = 48800g
1) The rate of percolation would be 0.33 ml/s
Percolation rate = volume of water/time
= 600/1800s
= 0.33 ml/s
2) The percentage of water absorbed would be 40%
Percentage of water absorbed = amount absorbed/total water x 100
amount of water absorbed = 100 - 60
= 40 ml
total amount of water = 100 ml
Percentage of water absorbed = 40/100 x 100
= 40%
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Answer:
C) ionic compounds
Explanation:
Addition of ionic compounds, such as inorganic salts, to pure water causes the greatest increase in conductivity because these substances are strong electrolytes and completely dissociate and produce ions.
Answer:
mental model
A mental model is an explanation of someone's thought process about how something works in the real world. It is a representation of the surrounding world, the relationships between its various parts and a person's intuitive perception about his or her own acts and their consequences.
Explanation: