The pH scale is a measure of how acidic a solution is.
<h3>What is a pH scale?</h3>
The unit of measurement to determine how acidic or basic a solution is, is done via a pH scale, which ranged from 0 to 14, on which 0 to 6.9 means that the solution is acidic, and 7 is neutral.
Hence, the pH scale helps to determine the acidic amount of the solution.
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Nelson Mandela was arrested in Howick. Rumours were spread the Mandela’s connection with the communist made him a target of US officials.US officials continued to track the activities of Nelson Mandela, and they found a collaborator in the South African government.
Based on the poem "The Lady of Shalott", we can infer that the setting sun in the painting and the gathering storm created a feeling of: B. despair.
<h3>What is an inference?</h3>
An inference can be defined as a process through which a reader deduces the meaning of a word and information that are associated with a passage or poem, especially through induction.
Based on the poem "The Lady of Shalott", we can infer and logically conclude that the setting sun in the painting and the gathering storm created a feeling of despair.
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Answer:
a 5
b 9
c 3
d 4
Explanation:
if you were to substitute in these numbers it would be valid.
