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This question will be completed entirely on Canvas; there is nothing to write in your work packet. Identify the symbol for the following elements on the periodic table. Any alkali metal [E1] A +1 ion with 55 electrons (do not include charge with symbol) [E2] The element in period 4, Group VIIA [E3] A metalloid in Period 5 [E4] An element whose 3- ion has the same number of electrons as neutral Ne [E5] Any symbol for an element whose name and symbol aren’t obviously paired (For example: Na is sodium isn’t obvious, Cr is chromium would be obvious) – do NOT choose Na, nor any elements in the lanthanides or actinides. [E7]  

Solve this problem, showing all work necessary both neatly and clearly on your work packet (clear work includes units!). Round your answer to the correct number of significant figures, write a unit, and draw a box around your answer on your work packet. Enter your answer, rounded to the correct number of significant figures and without a unit, into the box below. Any work requiring dimensional analysis must be completed with a process that clearly shows the cancelling of units and that uses conversion factors given on this quiz or discussed in this class for the possibility of full credit.    Periodic Table (click to expand, do not click to download or it may affect Honorlock)   Answer on Canvas: 0.5 pointsWork Packet: 4 points   What is the mass, in grams, of a sample of cobalt that contains [x].[x1] x 10[y] cobalt atoms?   Canvas may get rid of significant zeroes when you type in your answer. Don’t panic, just make sure that the significant figures are correct in your answer on your work packet. 

This question is answered entirely on Canvas. No work will be written on your work packet.  A student runs a different speeds (measured in miles/hour) for 10 minutes and then checks their average heartrate (in beats per minute). The data from this experiment were plotted on a graph and a best-fit line was fit to the data. The equation for the line is y = 6.62x + 141.31.   a) Which variable is the independent variable? [a] b) What is the unit for the slope of the best-fit line on this graph? [b] c) What is the unit for the y-intercept of the best-fit line on this graph? [c]

Solve this problem, showing all work necessary both neatly and clearly on your work packet (clear work includes units!). Round your answer to the correct number of significant figures, write a unit, and draw a box around your answer on your work packet. Enter your answer, rounded to the correct number of significant figures and without a unit, into the box below. Any work requiring dimensional analysis must be completed with a process that clearly shows the cancelling of units and that uses conversion factors given on this quiz or discussed in this class for the possibility of full credit.  Answer: 0.5 pointsWork: 6 points   The protons in a mystery atom from the periodic table cover an area of 1.12 x 10-16 nm3. Knowing that the mass of 1 proton is 1.6726 x 10-27 kg and the density of a proton is 1.0000 x 1018 kg/m3, how many protons are in this atom? Round your answer up to the nearest whole proton.  Extra credit part: Based on your answer, correctly identify the mystery atom and write its symbol on your work packet.

This question is answered entirely on Canvas. No work will be written on your work packet. To how many significant figures will the final answer be rounded for the calculation shown? You should assume none of the numbers are exact.  

This question is answered entirely on Canvas. No work will be written on your work packet.    Which of the following choices best represents the measurement shown on this thermometer?

Solve this problem, showing all work necessary both neatly and clearly on your work packet (clear work includes units!). Round your answer to the correct number of significant figures, write a unit, and draw a box around your answer on your work packet. Enter your answer, rounded to the correct number of significant figures and without a unit, into the box below. Any work requiring dimensional analysis must be completed with a process that clearly shows the cancelling of units and that uses conversion factors given on this quiz or discussed in this class for the possibility of full credit.    Periodic Table  (click to expand, do not click to download or it may affect Honorlock)   Answer on Canvas: 1 pointsWork Packet: 6 points   A student performed an experiment to determine the formula for a hydrate of a compound made of molybdenum, sulfur, and water (H2O). The student completed a process similar to the work we did in the Hydrate lab to separate the different substances in the compound from each other. They collected the following data for the amount of each substance in the compound: mass of molybdenum: 0.5047 grams mass of sulfur: 0.3373 grams mass of water: 0.3790 grams Determine the empirical formula for this hydrate, which has a general formula MoxSy • Z H2O. Enter the correct subscripts for the substance into the boxes below.  Note: If you have a substance with a subscript of 1, please enter the 1 (even though we generally do not include 1’s as subscripts).   Mo[x]S[y] • [Z] H2O

I have read and reviewed the introduction to this quiz, including the academic honesty policy, the work submission procedure, and allowed materials and asked any questions I had about them before beginning this quiz. Note: selecting false does not excuse you from having read this information.

Solve this problem, showing all work necessary both neatly and clearly on your work packet (clear work includes units!). Round your answer to the correct number of significant figures, write a unit, and draw a box around your answer on your work packet. Enter your answer, rounded to the correct number of significant figures and without a unit, into the box below. Any work requiring dimensional analysis must be completed with a process that clearly shows the cancelling of units and that uses conversion factors given on this quiz or discussed in this class for the possibility of full credit.   Periodic Table (click to link expand, do not click to download or it may affect Honorlock)   Answer on Canvas: 0.5 pointsWork Packet: 6 points   What is the mass, in kilograms, of a sample of Ca3(PO4)2 (molar mass = 310.18 g/mol) that contains [x].[x1] x 10[y] calcium ions?   Canvas may get rid of significant zeroes when you type in your answer. Don’t panic, just make sure that the significant figures are correct in your answer on your work packet. 

Solve this problem, showing all work necessary both neatly and clearly on your work packet (clear work includes units!). Round your answers to the correct number of significant figures, write a unit, and draw a box around your answers on your work packet. Enter your answers, rounded to the correct number of significant figures and without a unit, into the boxes below. Any work requiring dimensional analysis must be completed with a process that clearly shows the cancelling of units and that uses conversion factors given on this quiz or discussed in this class for the possibility of full credit.    Periodic Table  (click to expand, do not click to download or it may affect Honorlock)   Answer on Canvas: 1 pointWork Packet: 6 points   Calculate the molar mass, in g/mol, for each substance below. Enter your answer, without a unit, in the box next to the substance. Do not write the name for these substances.   a) Pb2(CO3)3     [a] b) OsF3 • 5 H2O    [b]