oguni SNC1D: UNIT 1 - Chemistry Assignment Include what you need to do to show me that you understand what you are talking about: writing (obviously), diagrams, a recording/video/slideshow - whatever! Get creative if you want to! This is also an opportunity to make extensions and connections between concepts, so feel free to elaborate as much as you want!... Whenever MATH is involved, make sure your solutions are beautiful - show your steps, include units, make sure the work is organized and clearly/logically laid out, etc... The confidence rating is to be completed by you, for each question, before you submit your assignment. Simply indicate how confident you are that you have the correct answer. (green = very confident , yellow = somewhat confident , red = unsure) Be sure to properly cite your sources whenever you use the internet to get information for your answer! Good luck, and have fun!! :D Question 1: Rearview Mirror Confidence Rating → When you are trying to understand new scientific concepts, is it important to also learn about the relevant scientific history that lead us to this understanding? Why or why not? Hopefully you said that learning about the history is important… ;P Because now what I want you to do is pick (i) one past, and (ii) one present scientist that interests you, and summarize the contributions that they made to our collective knowledge/understanding of the world around us. I encourage you to consider scientists of different genders and race/ethnicity when making your selection, even though it might be harder to find information, unfortunately. And also, try to choose two scientists that you don’t already know too much about, because then you’ll actually be learning something new! ;) Source(s) → Question 2: 1/118 Confidence Rating → Pick an element that interests you. OR, if you are feel adventurous, click on the link provided and let fate choose for you: https://random-name-picker.com/random-periodic-table-element-picker/ Do some research on that element to determine/summarize the following information: The element symbol, atomic number, mass number, period number, and group number. The number of protons, neutrons, and electrons in the atom. How many known isotopes are there? How many neutrons does each isotope have? When it was discovered/synthesized, and by who/where? What are some of the characteristic physical/chemical properties of this element? What are some common uses/applications of this element? Source(s) → Question 3: They’re the same, but they’re different... Confidence Rating → Where/how are atoms of the different elements created/formed? What makes one atom/element different from another? Describe the relationship between the number of protons and electrons in an atom. Explain why this relationship exists. Is there a relationship between the number of protons in an atom and the number of neutrons? If so, explain this relationship. If not, explain why no such relationship exists. Source(s) → Question 4: little atoms, BIG QUESTION Confidence Rating → While out on a hike with his family, Mr. Landreville discovers a cool looking rock sample. Being the curious chemist that he is, he takes this rock sample back to his own personal laboratory to analyze it, so that he can try to determine what it’s made of. He observes that the rock appears to contain two different elements: Unknown Element 1 (which he calls “Ry”, for now) -> appears to have 15 protons Unknown Element 2 (which he calls “An”, for now) -> appears to have 20 electrons Identify each element (Ry and An) using the periodic table. Classify both elements (Ry and An) as Metals, Non-Metal or Semi-Metals What period is element Ry in? What group is element An in? Draw a Bohr-Rutherford diagram for both elements (Ry and An). Determine the ion charge for both elements (Ry and An). Use Lewis structures to show bonding between these two elements and determine the chemical formula of the compound that these two elements would create. What type of bonding occurs between these two elements? Explain how you know. What is the name of the compound that these two elements would form. Source(s) → Question 5: Complex Molecules Confidence Rating → Pick a compound that contains at least 20 atoms. (You’ll have to Google the chemical formula) If you had exactly 64 molecules of this compound, how many atoms would there be in total? Source(s) → Question 6: Tricky Terminology Confidence Rating → Clearly explain the difference between the words atom and molecule. Clearly explain the difference between the words element and compound. Can a molecule also be a compound? If so, provide an example. If not, explain why not. Can a molecule also be an element? If so, provide an example. If not, explain why not. Source(s) → Question 7: Miittle... Confidence Rating → Using materials around your home, create a homogeneous mixture (a solution). Explain to me/show what you did, and also explain what makes it homogeneous. Using other materials around your home, create a heterogeneous/mechanical mixture. Explain to me/show what you did, and also explain what makes it heterogeneous. Source(s) → Question 8: Movement and Spacing Confidence Rating → Indicate which of the three states of matter (solid, liquid and gas): has a fixed shape can be compressed Explain why using particle theory. Source(s) → Question 8.9999999999999991: Heating Up and Cooling Down Confidence Rating → Use particle theory to describe what happens during each change of state: Melting b) Boiling c) Condensation d) Freezing Source(s) → Question 10: Hot and Cold / Big and Small Confidence Rating → Is there a relationship between the temperature of a substance and it’s volume? Use particle theory to explain. Are there any exceptions to this relationship? Source(s) → Question 11: Changes Confidence Rating → a) Find an object in your home, and then make that object undergo a physical change (but please first check with your parents/guardians to ensure that it’s not something valuable! ;P). Describe to me/show me what you did. b) Watch the experiment: elephant toothpaste (https://www.youtube.com/watch?v=p1eG2y2mn54) Is this a chemical or a physical change? Explain how you know. Source(s) → Question 12: Density Questions Confidence Rating → i) Find two different objects/substances in your home. One of the objects needs to be more dense than water, and the other must be less dense than water, and you need to prove it to me! ii) Choose a liquid (other than water, which includes any drinks because they are mostly water) that is in your home, and calculate its density. Note: Please make sure it is safe to handle! iii) Choose a solid object that is in your home and calculate its density. Source(s) → - - - - - - - - - - - - - - - - - - - This assessment officially ends here - - - - - - - - - - - - - - - - - - - BUT!!!... BEFORE YOU CLICK ‘SUBMIT’, PLEASE ANSWER THIS POST-ASSIGNMENT QUESTION: Are you proud of this work? (Yes or No) -> * If the answer is Yes, then congratulations on being done! :D ** If the answer is No, then if there is any time left in this course, consider doing more so that this becomes something that you are proud of… ;) *** You may now click ‘SUBMIT’! *** YOUR GRADE/performance on this assessment will be discussed/determined during our next conference. Therefore, it would be useful for you to hyperlink your CONFERENCE NOTES doc for quick access/reference. Chemistry Assignment (SNC1D 2020-21 VAS-6)