Authoritarian
Explanation: An authoritarian ruler is basically a dictator, not allowing any freedom of choice. Authoritative provides some parental control, but probably with limits. Permissive is lenient.
The way scientists know that a hypothesis in astronomy is a reasonable description of nature is to do experiments and observations about the prediction of the hypothesis.
Given an incomplete sentence related to hypothesis and astronomy.
We are required to complete the sentence.
A hypothesis is basically a testable statement about the relationship between two or more variables or a proposed explanation for some observed phenomenon.
Astronomy is basically the study of everything in the universe beyond Earth's atmosphere.
The statement can be completed by "do experiments and observations about the prediction of the hypothesis".
Hence the way scientists know that a hypothesis in astronomy is a reasonable description of nature is to do experiments and observations about the prediction of the hypothesis.
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Answer:
D. Graduation date
Explanation:
Some <em>job applications</em> ask for the date you graduated high school or college, although it tends to raise questions about <em>why the company would ask such a thing in the first place</em>.
Considering the definition of percentage by mass, the sample of pure lithium nitrate contains 7.99% lithium by mass.
<h3>Definition of percentage by mass</h3>
The percentage by mass expresses the concentration and indicates the amount of mass of solute present in 100 grams of solution.
In other words, the percentage by mass of a component of the solution is defined as the ratio of the mass of the solute to the mass of the solution, expressed as a percentage.
The percentage by mass is calculated as the mass of the solute divided by the mass of the solution, the result of which is multiplied by 100 to give a percentage. This is:
<h3>This case</h3>
Because percent by mass indicates the ratio of solute to solution based on mass, if the sample has twice the mass of the first sample, the ratio remains constant.
So the percentage by mass is the same.
That is, the sample of pure lithium nitrate contains 7.99% lithium by mass.
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