ptec110module06WE

Tegacynv.schoology.com Atmospheric Carbon Dioxide Concentration Over Time 420 current 380 340 300 1950 260 220 180 140 400,000 350,000 300,000 250,000 200,000 150,000 100,000 50,000 0 (present) Years before present Source: NASA Global Climate Change, Carbon Dioxide Proxy Measurements, based on data from NOAA, June 2016 The rate at which carbon dioxide is being added to the atmosphere now is higher than ever before. higher lower co, (parts per million)

You have accidentally broken a test tube and spilt a chemical on the table. Which of the following best explains what you should do? * Use water and paper towels to clean up the spill; place the broken test tube in the disposal container specified by the teacher for sharp objects. Throw the glass into the nearest trash bin and let the spill air-dry. Caution your lab partners to avoid the area while you inform the teacher of the small accident. Quickly dispose of the glass, wipe up the spill with the nearest cloth, and hope nobody notices.

Explain how  the rate of reaction rate in pressure cookers was increased by including these subtopics:1. Chemical reaction(s) involved with chemical equation(s) 2. Reactants, products, and possible catalysts involved in the chemical reaction 3. Explain with collision theory and energy potential diagrams: how the rate of reaction is affected by temperature, surface area, nature of reactants, concentration, etc. by using collision theory? 4.Discuss whether the reaction is endothermic or exothermic (use Hess’s Law, Le Châtelier’s Principle, or Kinetic Molecular Theory to explain in increasing rate of reaction and relevance by including all 4 required subtopics )

www-awn.aleks.com Significant Figures Counter Chapter 5. The Nervous System-Neurolo... https://learn-us-east-1-prod-fleet01-xyth... ALEKS Sabina Lamgadhey Learn ALEKS Sabina Lamg O CHEMICAL REACTIONS Solving for a reactant using a chemical equation Sabin Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction in which water (H,O) and carbon dioxide (CO,) chemically react to form the simple sugar glucose (CH206) and oxygen gas (0,). What mass of simple sugar glucose is produced by the reaction of 8.45 g of water? Be sure your answer has the correct number of significant digits. x10 Explanation Check 2/2020 McGraw-Hill Education, All Rights Reserved. Tems of Use Privac 10 MacBook Air F3 F4 F5 F6 II

3. The decomposition of N2O5 in the gas phase was studied at constant temperature, 2N2O5 (g) → 4NO2 (g) + O2(g) The following results were collected: find nature) N2O5] 0.1000 Ln[N2O5] -2.30 2.65 2.99 -3.69 -4.38 -5.08 a. Complete the table. Using the data and graph paper, plot the [N2O5] versus time and Time (s) 10g. (LN) 0.0707 0.0500 50 0.0250 100 0.0125 200 0.00625 300 400 Ln[N2O5] versus time. Determine the value of k. Which graph did you use? graph *b. On your graph of [N2O5] versus time, highlight the times it takes for each halving of the reactant concentration. What is the half-life? Using this half-life calculate k. design experiments to find the activation energy,

3. Which of the following is the BEST document where a laboratory technician can read the recommendation on how to handle chemical spills? ○ NFPA O PERMISSIBLE EXPOSURE LIMIT (FEL) O MATERIAL SAFETY DATA SHEET (MSD)

Studying for an exam and this is a sample lab from YouTube. Hoping you can form an answer key for me. Thank you. Watch the video “Decomposition of Sodium Bicarbonate (baking soda)and use the data in the video to answer the questions in the sample lab report. Thank you.

ttps://prod04-cnow-owl.ceng... ✪ > Google N Home - Netflix Disney+ | Movies a... Problems 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt ) 1 pt Concentration A Submit Answer [References] Sulfuryl chloride, SO2 Cl2, decomposes when heated. SO₂ Cl2 (9) → SO2 (9) + Cl₂ (g) In an experiment, the initial concentration of SO₂Cl₂ was 1.31 x 10-2 mol/L. If the rate constant is 2.2 x 105/s, what is the concentration of SO₂Cl2 after 6.0 hr? The reaction is first order. 6 item attempts remaining mol/L Ⓒ Try Another Version > M Other fa

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POST-LAB QUESTIONS what type of evidence of a chemical reaction: color change, temperature change. cipitate formation or gas formation, might you see in the following? fizzing of an Alka-Seltzer tablet dropped in a glass of water b. bleaching a stain c. burning a match d. rusting of an iron nail 2. Balance the following equations: a. Mg(s) + HCl(aq) → H2(g) + MgCl2(aq) b. C3H8(9) + O2(g) -> H₂O(g) + CO2(g) C. Na2SO4(aq) + BaCl2(aq) → BaSO4(s) + NaCl(aq) d. Fe2O3(s) CO(g) → Fe(s) + CO2(g) 3. Write an equation for the following reactions. Do not include phase labels. Balance each equation. a. solid potassium and oxygen gas react to form potassium oxide. b. solid sodium and water react to form aqueous sodium hydroxide and hydrogen gas. c. iron and oxygen gas react to form iron (III) oxide. d. Phosphorus solid and chlorine gas react to form phosphorus trichloride. 14 love

The graph for the decomposition reaction NO2 ⟶ NO + 1/2 O2 is shown here: What does the graph show? a. The concentration of nitrogen dioxide increases over time. b. The concentration of nitrogen dioxide stays constant over time. c. The concentration of nitrogen dioxide decreases over time. d. The concentration of oxygen decreases over time.

Match the symbol to its meaning. amount of material (counting by individual particles) E(a) collision frequency rate constant reduced mass N collision cross-section k steric factor amount of material (counting by moles) A pre-exponential factor lowercase Greek sigma activation energy lowercase Greek mu > >

A group of students enrolled in a Physical Chemistry Laboratory class performed an experiment on the THE STUDY OF AN ADSORPTION ISOTHERM: ACETIC ACID SOLUTIONS ON ACTIVATEDCARBON. The data gathered by the group are documented in the tables below. Solve for the unknown data.   answer 1,2,3

Can you use the craap method to determine if the article by caltech titled Beirut explosion: TNT equivalence from the fireball evolution in the first 170 milliseconds is credible?explain why or why not?

Based on the reaction: 4 A + 5 B = 3 C + 2 D if B is being consumed at a rate of (6.19x10^-6) M/s, how fast is D being produced (in M/s)? Enter your answer in scientific notation with 3 sig figs. Do not include any units in your answer. Do not round any intermediate calculations. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: х10 Answer

How a a cascade impactor separates particles ?

B IU Av A 1. Using the Ideal Gas Law (PV = nRT), calculate the grams of O2 produced in the reaction. Show %3D your work and follow the steps below. If you pressure is not yet in atm, convert it to atm using the appropriate conversion factor. b. Convert the volume of oxygen collected from mL to L. C. Convert the temperature of the water from °C to K. d. Plug in P, V, R (gas constant), and T to the ideal gas law and solve for n, which is moles of oxygen gas. e. Use the moles of oxygen gas found and the molar mass of O2 to calculate the grams of oxygen produced using dimensional analysis.

a *ACTIVITY 6.pdf O File D:/1st%20sem/chemistry%201/activity%20chem/ACTIVITY%206.pdf + O O CE Page view A Read aloud O Add text V Draw E Highlight O Erase of 2 Republic of the Philippines Laguna State Polptechnic University Province of Laguna ISO goos a015 Certified Level l Institutionally Accredited ACTIVITY TASK Activity 6 State the type of Chemical Reaction 1. BaCl, + H,SO → 2. CH12 + O2→ 3. Zn + CuSO,→ 4. Cs + Br, > 5. FeCO, → 1SPU SELE-PACED LEARNING MOnuLE: PHYSICAL SCIENCE P Type here to search 29°C Mostly cloudy A 回 ENG 4:55 pm 28/10/2021

Explain the chemistry of the 2020 Beirut explosion.

The gas phase reaction between hydrogen and iodine is proposed to occur as follows:.....step 1.....fast:......I2  2 I.....step 2.....slow:....H2 + 2 I  2 HI(1) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank.     +              +     (2)   Enter the formula of any species that acts as a reaction intermediate? If none leave box blank:     (3) Complete the rate law for the overall reaction that is consistent with this mechanism.Use the form k[A]m[B]n... , where '1' is understood (so don't write it if it's a '1') for m, n etc. Rate =

What is net ionic equation for the reaction of calcium nitrate with sodium chloride?