Answer:
you could make a diy newtons cradle
Explanation:
Answer: C. A sense that the speaker feels out of place in 1950s America
Explanation:
Answer:
Plzzz add options? then I will answer fully?
Explanation:
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.
.
Learn more about percent by mass:
brainly.com/question/18646836?referrer=searchResults
For tyler to make his speech on skateboarding for his physics class more interesting, Tyler should; include striking visual aids.
<h3>Importance of Visual Aids</h3>
Since Tyler is preparing a speech on skateboarding, he needs to use visual aids to make it more interesting.
Now, visual aids are unique techniques and methods that are used to present the specific topic in front of audience and improve the audience's understanding.
These visual aids could include, graphs and pictures to use to illustrate points better and make a very good visual impression.
Read more about Visual Aids at; brainly.com/question/3610367