Marble, Roman copy after a Greek original from ca. 430 BCE. The Athenian democracy of Cleisthenes<span>and </span>Pericles<span> was based on freedom, through the reforms of Solon, and equality (isonomia), introduced by </span>Cleisthenes<span> and later expanded by Ephialtes and</span>Pericles<span>.</span>
"The mass of Substance C is five times the mass of Substance B", the given statement is correct.
Answer: Option D
<u>Explanation:</u>
As Jessie added 16 gm. of Substance A to 4 gm. of Substance B Obtained certain amount of Substance C which can be calculated as follows:
amount of Substance C = Substance A + Substance B = 16 + 4 = 20 gm
Therefore, 20 gram of Substance C was obtained. Here, fourth statement is correct which says the mass of Substance C ifs five times the mass of Substance B to justify this, see the below:
Answer:
The Four Universal Principles
The government as well as private actors are accountable under the law. The laws are clear, publicized, and stable; are applied evenly; and protect fundamental rights, including the security of persons and contract, property, and human rights.
Explanation:
Lemons are very acidic, so they can be used to remove any <u>dark spots</u> that may appear on your chef's knives over time.
<h3>What is
acid strength?</h3>
Acid strength can be defined as a measure of the ability of an acid to dissociate (ionize or split) into an anion and a proton. Also, acid strength is typically measured in pKa.
<h3>The two types of acid.</h3>
In Science, there are two main types of acid and these include the following:
- Strong acid
- Weak acid
On a pH scale, a solution with a pH of 1 is considered to be a strong acidic while a solution with a pH of 6 is a weak acid such as lemons.
Due to the slight acidic nature of lemons, they can be used to remove any <u>dark spots</u> that may appear on your chef's knives over time.
Read more on weak acid here: brainly.com/question/9466949
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