6. Play with the simulation to discover what affects the mass number of your atoma) What is a rule for determining the mass number of an atom or ion?7. Practice applying your understanding by playing 1t and 2nd levels on the game sci BIUANormal textRusso One34GD5. Play with the simulation to discover which particles affect the charge of an atom ca) Fill in the blanks below to show your results:Neutral atoms have thenumber of protons and electrons.Positive ions haveprotons than electrons.Negative ions haveprotons than electrons.b) Develop a relationship (in the form of a single sentence or math equation) thatthe charge of an atom or ion.

Atom is the smallest unit of any matter. It is consist of three sub particles namely electron,…

Answered: 5. Play with the simulation to discover…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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27) Draw a model that compares a solid with high density to a liquid with lower density. Be sure to label the images you draw and show the models on a molecular level (in other words you need to draw molecules or something that represents molecules).
Two students plan and carry out an investigation to determine if ionic or covalent bonds have stronger intermolecular forces. They collect the following data. C6H1206 NaCI color white white texture,grain size rough, small pieces rough, very small grains solubility in water soluble (able to dissolve) soluble (able to dissolve) melting point melts easily does not melt a. Identify the type of intramolecular bonds that are involved. b. Which substance will have the stronger intermolecular forces? c. Which properties allow you to predict the strength of the intermolecular forces? Format B I U ... >
Lab Data Verify your concentration calculation. Did you report your data to the correct number of significant figures? Stock solution Concentration iron(III) nitrate 0.40000 [Fe(NO3)a] (M) Color of iron(III) nitrate yellow Concentration potassium thiocyanate [KSCN] (M) 0.00300 Color of potassium thiocyanate colorless Volume iron(III) nitrate (mL) 10.00 Volume potassium thiocyanate (mL) 2.00 Volume DI water (mL) 8.00 Concentration iron(III) thiocyanate ion in stock solution [FESCN2"] (M) 0.000300 Color of stock solution red-orange Diluted solutions Solution 1 Solution 2 Solution 3 Volume stock solution (mL) 4.00 4.00 4.00 Volume DI water (mL) 1.00 2.00 3.00 Concentration iron(III) thiocyanate ion [FeSCN2*] (M)
2. Use the information on the image below to find the following: h=5 cm Notes Density arwork w=6 cm ASHI 1=8 cm MASS of the object is given as 80 G a. Volume of the object - (Hint: V = Lx W x H) b. Density of the object is (Hint: Density-Mass / Volume) c. Given that density of water is 1 g/ml, use your response to question 'b' above to infer if the object would sink or float on water. Explain using appropriate science concept.
A chemist prepares a solution of aluminum sulfite (Al, (SO,).) by measuring out 179. µmol of aluminum sulfite into a 300. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's aluminum sulfite solution. Be sure your answer has the correct number of significant digits. mmol x10
3. If we want to find out which elements are safe for humans to consume when combined a rait an which of the following might be the best way to predict the elements that are safestte ca A. Determine how much sodium and similar elements are normally found in the human body B. Determine the properties of sodium and similar elements using the periodic table. C. Use a conductivity meter to find out if sodium and similar elements conduct electricity. D. Research the abundance of sodium and similar elements in outer space to compare to Earth. E. Look up the melting points of sodium and similar elemen compare temperatures. 4. Explain why you chose the answer you did to question #3.
5. You are testing for unknown compounds. Evaluate the results of these tests to determine the likely contents of each unknown solution. Compound Unknown #1 Unknown #2 Unknown #3 Unknown #4 lodine Yellow Dark blue Dark blue Yellow Benedict's test Green Blue Red Orange Sudan stain No interaction Top 1/3 of the solution turns red No interaction Top of the solution turns red Conclusion: what molecules are present in this sample?
This is a question regarding spectrophotometry. Scenario: 0.1 mL of the unknown and 0.9 mL of distilled water are mixed in a cuvette and the absorbance is measured at 280 nm. Given the absorbance, molecular mass and the extinction coefficient of the unknown are 0.253, 16950 g and 13940 M-1cm-1 respectively, and the path length is 1 cm, how can I find the concentration of the unknown in mg/mL by Beer-Lambert Law (NOT molarity M)?
Estimate the pH of a 7.18 x 106 M HF solution. You can calculate the lowest possible pH, knowing that the actual value will be higher. Your answer should contain 3 decimal places as this corresponds to 3 significant figures when dealing with logs. pH will be above Select the solution with the highest pH. Multiple Choice 0.0225 MLIOH 0.0225 MH2CO3 0.0225 MCH3NH2
4. a. What is the abbreviated name for the molecule below? (3 letters) What is the abbreviated name of this molecule if it has two phosphates? is the abbreviated name of this molecule if it has one phosphate? answers above, circle the form of the molecule that has the most energy. What type of energy is in this molecule? circle all that apply:(KINETIC / POTENTIAL / CHEMICAL) Where is the energy? b. Identify the three main parts of this molecule. (write on the red brackets i-iii) c. Parts ii and iii together make i. NH₂ N Bas OH OH ii d. This molecule is also a monomer building block of which biomolecule (be specific) The general name for this type of monomer is a e. Put arrows by the two high energy bonds on the molecule above. Explain why these functional groups are difficult to join. HO 1. OH ОН ОН (blue vertical bracket) What On your f. Compared to "low energy" bonds, high energy bonds require circle one: (MORE / LESS/ the SAME amount of) energy to make; high energy bonds release…
Model Elements and Number of Atoms Chemical Formula 1. H2 3. Os CH. 5. NaOH 2. 4.
a A metal that is in the liquid phase at room temperature. SiO2 b A compound that forms a network solid composed of covalently bonded atoms. CO2 c A gas that will dissolve in water due to dipole-Induced dipole forces. KNO3 d The solid-liquid equilibrium line on the phase diagram of this compound has a negative slope. Poly-ethylene ( a plastic) e A solid substance at STP, in which the particles are held together by Induced dipole-induced dipole forces. Graphite f A substance that will dissolve in water due to hydrogen bonding. H2O g A covalent network solid that has good electrical conductivity. NH3 h An amorphous solid. Hg

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5. Play with the simulation to discover which particles affect the charge of an atom c a) Fill in the blanks below to show your results: Neutral atoms have the number of protons and electrons. Positive ions have protons than electrons. Negative ions have protons than electrons.