08-04_task1-2

19. The chemical equation for photosynthesis is _CO2 (g) + _H₂O (1)→ __C6H1206 (s) + (C6H12O6 is glucose, the simplest sugar) a. Balance the chemical equation above by filling in the blanks. b. According to onetreeplanted.org, the average tree (across all climates and sizes) removes 10 kg of carbon dioxide from the atmosphere every year. Based on this, what mass of glucose is produced annually by the average tree? O2 (g) c. Teak is a common species of tropical tree. The graph below shows the amount of CO₂ absorbed by teak forests in tons of CO₂ per hectare of forest per year, according to the climate region where the forests are found (dry = low rainfall, humid=high rainfall). Looking at your photosynthesis equation again, what does this data suggest about which reactant is the limiting reactant for teak trees? Explain. C Teak Carbon sequestration rate (tons CO₂ ha -1yr -1) 10 10 20 Tropical humid Tropical dry Aboveground biomass, 0-20 years Belowground biomass, 0 -20 years

The complete combustion of octane occurs according to the following balanced equation: 2 C3H18(1) + 25 02(g) → 16 CO2(g) + 18 H20(g) + energy What additional products are produced by the incomplete combustion of gasoline occurring inside a garage? Select one: a. Carbon and hydrogen b. Carbon and carbon monoxide O c. Carbon monoxide and methane d. Carbon monoxide and hydrogen

7. Applying the principles of green chemistry requires some consideration of the way in which they can be applied. Figure 1 represents a generic industrial process. Using the principles of green chemistry and circled letters, describę how four of the principles could be applied to this process to make it a green operation. E kaEA product raw materials energy Source waste гeactor Figure 1 st

24. ĮThere are highly active chemicals to be shipped by trucks. Environmental regulations stipulate that two chemicals cannot be shipped in the same truck if the two chemicals react explosively. In the table below, an X in a specific row and column indicates that the chemical of the row reacts explosively with the chemical of the column. If we have one canister of each chemical, how many different trucks must be used to ship the chemicals and what chemicals can be shipped together? Chemicals A B D E F G A X X B X X X X X E X X F X X X X G X X Number of trucks: Chemicals that can be in each truck together: :::

Moquie $0 219 OWLV2 keAssignment/takeCovalentActivity.do?locator-assignment-take In the following equation for a chemical reaction, the notation (s), (I), or (g) indicates whether the substance indicated is in the solid, liquid, or gaseous state. 2SO₂(g) + O₂(g) →→→2SO3(g) + energy The reaction is Q Search Identify each of the following as a product or a reactant: SO3(g) SO₂(g) 0₂(g) When the reaction takes place energy is Submit Answer 7 L M te OWLv2 | Online teaching and X * Use the References to access important values if needed for this question. Retry Entire Group K CO 144 www.yo up 8 more group attempts remaining L 11 b Answered: For the reaction 2 x + 111 P g P¹ ins prt sc. delete Previous backspace ^ GG 4 home GURN lock 7 home A 6:52 PM 5/14/2023 74 X In

1. Give at least 2 significant examples of chemical reactions that falls on change in intrinsic properties and production of light. 2. Enumerate chemical reaction that may bring benefit or harm to life as well as to environment. Give 1 example for beneficial and 1 for harmful 3. Given the statements, write the chemical equation and label the reactant and product a. Aluminum (Al) reacts to oxygen (O2) to form Aluminum oxide (Al2O3). b. The reaction of sulfuric acid (H2SO4) and sodium hydroxide to produce sodium sulfate (Na2SO4) and water

CHM 151 Exp #8 Copper Cycle General Observations: Your instructor has provided pictures and video taken during each of the five different steps (reactions) during this experiment. Please refer to them as you write out your general observations for the experiment. For example: Table 1- General Observations of the Copper Reactions in this experiment Step 1: Cu(s) + 4HNO;(aq) → Cu(NO3);(aq) + 2NO:(g) + 2H;O() Reddish brown gas is produced and the copper dissolves to form a blue solution. The reaction is producing heat (beaker is getting hotter). Since there are five steps in this series there should be general observations written down for each reaction (step) in the series (5). It is important to record observations of color, gas production, precipitate production, dissolving of solids and changes of temperature since these types of general observations are all indicators of a chemical reaction taking place. You will find numbers written in parentheses for the questions placed in the…

62. Antacid Fizz When an antacid tablet dissolves in water, the fizz is due to a reaction between sodium hydrogen carbonate (NaHCO3), also called sodium bicarbonate, and citric acid (H₂CH₂O₂). 3NaHCO3(aq) + H₂CH₂O,(aq) → 3CO₂(g) + 3H₂O(l) + Na, C₂H₂O₂(aq) How many moles of Na₂C,H,O, can be produced if one tablet containing 0.0119 mol of NaHCO is dissolved?

1. Company vehicle records indicate that 140 g of sodium azide was placed in the air bag during production. How many moles of nitrogen gas will be produced by the rapid decomposition of the azide in the first reaction: 2NaN3 → 2Na +3N2? Show your work below.   2. How many grams of sodium metal will be produced? Show your work below.

How can we find the percentage? And the produced?

Q29 Santa Monica Big Blue Bus operates a fleet of CNG buses, which run on compressed natural gas (CNG), natural gas that has been compressed into a much smaller volume in the fuel tank. A newly designed CNG vehicle carries about several thousand cubic feet of compressed natural gas which contain 72 kg (kilograms) of carbon. If all of the natural gas is burned, how many kilograms of carbon dioxide will be emitted into the atmosphere? Assume no residue remains and the carbon dioxide is the only product in the combustion. If you are presenting this question, please explain the following: The steps in the calculation process O Please write out the steps involved in the conversion process including the units O Please explain how to operate on the units Please explain how to manipulate the powers of ten by hand (e.g. product rule and the quotient rule) How to apply the appropriate rule to the calculation: O addition-subtraction rule ("the decimal places rule"), OR multiplication-division…

Request They Both Die at t... ula Enchanted Wa... Question 6 of 20 Balance the following chemical equation (if necessary): Sio,(s) + C(s) → Si(s) + CO(g) 04- 2. 3+ O4+ 1 6. 7 8. 9. Os 6. O9 (s) (1) (g) (aq) C Si Reset • x HO Delete MacBook Air 000 F3 F4 F5 @ %23 2$ % 2 3 5 6. 8 9. W E 5 4- 3. 2. 14

Your Answers: Assess It! 4. As we look around space we find that most of it is composed of (4). hydrogen combines with carbon which is the basis for all living things. Combining different (6). A group of two or more atoms that are bonded together is called a (7). are combined in a specific way, or ratio, the substance is called a (8). of hydrogen. When the forms a (5)_ 7. together form different substances. 8. _. And when the elements (e.g. water). DELL 5. 6.

1. A reaction at 21.7 ˚C and 1.03 atm produces 18.0 L of CO2 (g). Determine the number of moles of CO2 (g) produced. 2. Determine the volume (mL) of C2H5OH (l) that was combusted to produce the volume of CO2 (g) collected above. The density of C2H5OH (l) is 0.789 g/mL