3 Does the poem's title tell you what the poem will be about? Sound of water BB by Mary O'Neil The sound of water is: Rain, Lap, Fold, • Slap, Gurgle, Splash,. Churn, Crash, o Murmur, Pour,* Ripple, Roar,. Plunge, Drip, Spout, Skip,. Sprinkle,. Flow, Ice, Snow. دن
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- 2. Was there any physical change in the characteristics of trichloroethane when it was added to water?Part C- Polarity Demonstration The results for the demonstration for polarity of various substances presented in the image below. Note that each vial has two liquid layers, water and oil. (Oil is a hydrocarbon chain.) Use this image to complete the following question. oil oil oil oil oil water water water water water With sodium chloride With iodine (dark purple solid) With copper With sulfur Blank (yellow solid) sulfate (light blue solid) (no solute) (colorless, ionic solid) Classify each of the compounds on display as a polar liquid, non-polar liquid, polar solid or non-polar solid. Saved Normal BIIU X2 X² - fr DI e Polar liquid: Polar solid: Non-polar liquid: Non-polar solid: MacBook AirEthanol is an alcohol found in drinks such as beer and wine. Examine this molecule. Are there any polar covalent bonds present? Based on your answer, would you predict that ethanol would or would not dissolve easily in water?
- Which of the following methods is used to determine "dissolved metals" in a water sample? O Digest the water sample and measure the metals in the digest Filter the water sample and measure the metals in the filtrate Filter the water sample and measure the metals in the particles in the filter Digest the water sample, filter the digest, then measure the metals in the filtrateSam drops a sugar cube into a jar with hot water and a sugar cube into a jar with cold water. Both jars have the same volume of water. He drops the sugar cubes at the same time and then observes how much of them dissolves in two minutes. What will be the result of Sam’s experiment, and which statement should he use as his conclusion? A A greater amount of sugar dissolved in hot water because temperature is directly proportional to the solubility rate of sugar in water. B Temperature does not affect the solubility rate of the sugar cube in water because sugar dissolves equally in both cold and hot water. C A greater amount of sugar dissolved in hot water because temperature is inversely proportional to the solubility rate of sugar in water. D A smaller amount of sugar dissolved in cold water because temperature is inversely proportional to the solubility rate of sugar in water.Why is tap water a homogenous mixture, whereas distilled water is a pure substance?
- What category of environmental chemistry that deals with chemical phenomena in all types ofwater and natural waters?How can the two emulsion can be distinguished : (a) oil in water type and (b) water in oil type.Take some water with a straw and put a few drops on plastic sheet. (a) What is the shape of the drop? (b) Move a drop around with your straw. Does the drop change? 2. Move one of the drops close to another one with your straw. What happens when two drops meet? 3. Put a small amount of one of the solids (salt, pepper, sugar, talcum powder) on one of the drops. Does the shape change? 4. Try this again with the other solids.
- In Parts 1 and 2, you noticed some patterns about what kind of substances conduct electricity when dissolved in water, and also how melting points are related. Let's test this pattern by applying it to other substances. Consider the following substances: Potassium Chloride: KClKClKCl Octadecanol: C18H38OC_{18}H_{38}OC18H38O Dimethyl Sulfoxide: C2H6OSC_2H_6OSC2H6OS Lithium Bromide: LiBrLiBrLiBr Explain the reasoning that supports your answer.? Use the patterns you saw in the previous sections to predict whether the melting points for each substance will be high (above 400°C) or low (below 200°C).?Water pollution is defined only as any physical or chemical change in water that: 1 a. Improves the flow rate of ground water b. Adds good properties to drinking water c. Improves the health of humans and other organisms. d. Adversely affects the health of humans and other living organisms. 03 + NOx + HCs ===> 2 a. VOC b. Smog c. CFCS d. CO2 Which one of the following is not true: 3. a. Sediments destroy organisms life in water. b. Sediments cover aquatic animals and plants. c. Sediments remove insoluble toxins from lakes. d. Sediments decrease light penetration. light at about 120-210 nm + O2 produces: a. 20 b. CIO C. 03 d. H20 One serious environmental problem is: a. Eutrophication b. Increase in DO c. Disinfection d. Decrease in BOD Gasoline motor vehicles are the major source of: 6 a. 03 on earth b. NOx on earth c. CFC's d. NH3 on earthQUESTION#1: A chemist must dilute 74.6mL of 588.μM aqueous calcium sulfate (CaSO4) solution until the concentration falls to 333.μM. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in liters. Round your answer to 3 significant digits. QUESTION#2: What kind of intermolecular forces act between a hydrogen bromide molecule and a chloromethane (CH3Cl) molecule? Note: If there is more than one type of intermolecular force that acts, be sure to list them all, with a comma between the name of each force. PLEASE ANSWER BOTH!