Question

Name and Title:

Include your name, instructor's name, date, and name of lab.


Objectives(s):
In your own words, what is the purpose of this lab?


Hypothesis:
In this section, please include the if/then statements you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.


Procedure:
The materials and procedures are listed in your virtual lab. You do not need to repeat them here. However, you should note if you experienced any errors or other factors that might affect your outcome. Using your summary questions at the end of your virtual lab activity, please clearly define the dependent and independent variables of the experiment.


Data:
Record the composition of each of your compounds below. Be sure to include the number of atoms for each element. An example has been supplied for you.

Compound Name Chemical Formula Sodium (Na) Atoms Calcium (Ca) Atoms Hydrogen (H) Atoms Oxygen (O) Atoms Carbon (C) Atoms Chlorine (Cl) Atoms
Ex: Sodium
hypochlorite NaClO 1 0 0 1 0 1










Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please answer all questions in complete sentences using your own words.

Using two to three sentences, summarize what you investigated and observed in this lab.
Why do you believe knowing how elements and compounds react together is essential in everyday matters?
Some elements are more "reactive" than other elements; why do you think this is?
Choose one of the compounds from the table and explain how you know the numbers of atoms in your formula.
Is it possible for two different compounds to be made from the exact same two elements? Why or why not? With a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Answer 1

The purpose of this lab is to investigate the composition of compounds and their reactions. Knowing how elements and compounds react together is essential in everyday matters. Elements' reactivity depends on their electronic configuration, and different compounds can be made from the same two elements based on their arrangements and ratios.

Step-by-step explanation:

The purpose of this lab is to investigate the composition of different compounds and understand how elements react together. The hypothesis for this lab activity is that when elements combine to form compounds, their atoms will be present in a specific ratio determined by the chemical formula of the compound.

Knowing how elements and compounds react together is essential in everyday matters because it helps us understand the behavior of substances and how they interact with each other. This knowledge is important in various fields such as medicine, engineering, and environmental science.

The reactivity of elements depends on their electronic configuration and their tendency to gain or lose electrons. Elements with incomplete or highly reactive outer electron shells are generally more reactive. These elements seek to gain or lose electrons to achieve a stable electron configuration.

The number of atoms in a compound can be determined from its chemical formula. Each element's subscript in the formula represents the number of atoms of that element in the compound. For example, in the chemical formula NaClO, there is 1 sodium atom, 1 chlorine atom, and 1 oxygen atom.

It is possible for two different compounds to be made from the exact same two elements. This is because different compounds can have different arrangements of atoms and different ratios of elements. With a limited number of elements, we still have a large number of compounds in the world due to the various ways elements can combine and form different chemical formulas.