Answer: Option (e) is the correct answer.
Explanation:
Since, the beaker contains NaOH solution whose pH is 13. As pH of NaOH is greater than 7 so, it means that this solution is basic in nature.
Whereas pH of HCl solution is equal to 1. As its pH is less that 7 so, it is acidic in nature.
Hence, when we add 10 ml of HCl into 100 mL of NaOH then there will be a slight decrease in pH of the solution because an acid is being added into the NaOH solution.
Thus, we can conclude that the statement pH of the beaker's contents falls, correctly describes the results of this mixing.
Answer:
15moles
Explanation:
Given parameters:
Mass of H₂SO₄ = 1469g
Unknown:
Number of moles = ?
Solution:
To solve this problem, let us first find the molar mass of the given compound;
molar mass = 2(1) + 32 + 4(16) = 98g/mol
So;
Number of moles = =
Number of moles = 15moles
Answer: The rock cycle is a process in which rocks are continuously transformed between the three rock types igneous, sedimentary and metamorphic. ... If the sediments are buried under further layers of sediment, they can become lithified to produce a sedimentary rock. Magma is produced when rocks are melted. The rock cycle is a concept used to explain how the three basic rock types are related and how Earth processes, over geologic time, change a rock from one type into another. Plate tectonic activity, along with weathering and erosional processes, are responsible for the continued recycling of rocks. As the lava cools it hardens and becomes igneous rock. As soon as new igneous rock is formed, the processes of weathering and erosion begin, starting the whole cycle over again!
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Answer:
Fertilizers play an important role in providing crops with the nutrients they need to grow and be harvested for nutritious food. Fertilizers help deliver enough food to feed the world's population. ...
For example, micronutrients such as zinc are important to human nutrition, especially children.
Explanation:
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