Culminating Task | Ball State University

University:
Ball State University
Course:
CHEM 111 | General Chemistry 1
Academic year:

2024
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0

Pages:

6
Author:

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Task 1 You will need your periodic table you annotated from Lesson 1 Why is the periodic table organized into groups? The elements in each group have the same number of valence electrons If different atoms can come together to form living and nonliving things, why is there a limit to the different combinations we encounter around the universe? there are many possible combinations of atoms, practical constraints in chemistry, environment, and biology limit the variety we encounter in the universe. Use the periodic table to complete the chart below. Chemical Name Chemical Symbol Atomic Number Number of Electrons Metal, Nonmetal, or Metalloid Gold Au 79 79 metal Sodium Na 11 11 nonmetal Argum Ar 18 18 nonmetal Boron b 5 5 nonmetal What elements in the chart above are in the same period on the periodic table? Sodium argor What element in the chart above has similar properties to aluminum? Explain how you know. Boron because they are metaloids Task 2 Place a checkmark next to the examples that represent matter. Alligator Energy Ice Humans Fire Clouds Air Bees Rocks Light How is a pure substance different from a mixture? a pure substance is uniform and has a fixed composition, while a mixture consists of different substances with variable composition Substance A and Substance B undergo a chemical reaction to form substance C. What type of substance is A? Explain how you know. Element What type of substance is C? Explain how you know. A mixture of compound and elements What do elements, compounds, and mixtures have in common? They all have atoms and can be located on the periodic table Why is air considered a mixture? There elements of combined compounds Task 3 - Read the following instructions carefully. Classify each substance as a Pure Substance or Mixture by using the drop-down feature. Identify the characteristics of each substance in the remaining part of the table by putting “Yes” or “No”. Heterogenous Homogenous Sample Pure Substance or Mixture Element Compound Mixture Mixture Distilled Water Salad Dressing Wood Block Kool-aid Drink Helium-filled Balloon Aluminum Foil Chalk Task 4 Label each area of the pH scale below. ( double click if completing digitally ) Provide a common example for each of the following: Your teacher has provided you with 5 sample substances, use the provided materials and resources to identify the sample as an acid, base, or neutral substance. Unknown Substance Acid, Base, or Neutral Substance A B C D E ADVANCED COURSE CONTINUE ON TO TASK 5! Task 5 - ADVANCED ONLY Describe the pH scale in terms of ion concentration. Identify the number of elements and atoms represented in each of the substances below. Substance O2 CuO Fe CO3 CaCO3 C6H12O6 Number of Elements Number of Atoms