The exchange of water between extra-cellular and intra-cellular fluids is realized through one of the following mechanisms.(A) Passive diffusion(B) Facilitated passive transport(C) Facilitated active transport(D) Endocytosis

A healthy human can afford to lose 5% of his/her body water, but cannot afford to lose more than 10% of his/her body water.

This question is answered entirely on Canvas; no work will be written on your work packet.  Use the dropdown menu within each statement to correctly complete the statement.   a) Solid carbon dioxide (dry ice) sublimates into gaseous carbon dioxide. This is an example of a [a]. b) Glass does not react with water. This is an example of a [b]. c) O2 gas is a(n) [c]. d) Chocolate chip cookies are an example of a [d].

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. 

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.  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]

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?

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 for this question.    Consider the picture of an atom below. Which of the following is the correct isotope name for this atom?