Chemistry High School

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Think of a chemical reaction that you've seen in your daily life. Write a 3-5 sentence paragraph, explaining what it is and how you know it was a chemical reaction.

Answers

Answer 1

Answer:

Baking soda mixed with Vinegar

Explanation:

This is a chemical reaction that I have seen in my daily life. Vinegar is acidic while baking soda is a base. The 2 mix together to form carbonic acid and sodium acetate from sodium and bicarbonate ions.

Answer 2

It occurred to me not too long ago that I have multiple chemical reactions happen every day when I eat. The chemicals in my saliva break down the food I am eating. The pH in saliva is higher, so it breaks down the carbohydrates in the food I'm eating preparing it to go into my stomach and digest. There are also many reactions that must occur during digestion, such as the stomach acid breaking down the food further.

Related Questions

Helen recorded the following data about the half-life of a radioisotope. Radioactive Decay of Radioisotope A Grams of Radioactive Material Remaining Time (in billions of years) 200 0 100 1 50 2 25 3 12.5 4 6.25 5 Which of the following types of graphs could Helen use to best organize her data? A. bar graph B. line graph C. histogram D. circle graph

Answers

Answer:

Line graph

Explanation:

I did it on Study Island

Radioisotopes are substances that are radioactive and have atoms with an unstable nucleus. The data about the radioisotope can be best organized in a line graph. Thus, option B is correct.

What is a graph?

A graph is a tool used to represent the data that contains the numerical data and includes the vertices and points to show the numbers and information in a statistical way. It is used to represent the variables of the tables in an easy and understandable manner.

Graphs can be bars, points, lines, columns, bubbles, areas, pie charts, etc. The line graphs use lines to connect the individual variables and are used to track the changes in radioactive material over a time period. It can easily represent the half-life and the remaining time of the radioactive decay.

Therefore, option B. a line graph will be best to represent the information.

Learn more about graphs, here:

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Answers

Answer:

9) 126.86 amu

10) 197.26 amu

11) 55.83531 amu

or 55.8 amu (to 3 s.f.)

13) 14.07 amu

Explanation:

Please see attached picture for full solution.

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