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help to write 2 pages about chemistry.

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Hello pleas answer this question .It is estimated that by 2035, half of the people in the world will live under severe water shortages. Discuss three specific strategies for conserving water in the United States.

what are the 3 pollutants and the part of acid

Question what are the 3 pollutants and the part of acid rain and what is the main acid that form the pollutants ?would this anser the first part of the question?Acid rain falls on the land, bodies of water, forests, crops, buildings, and people. The concerns about acid rain center on its environmental impact on lakes, forests, crops, materials, and human health.Would this answer the second part of the question? Human-produced emissions of sulfur and nitrogen oxides from burning fossil fuels are the cause of acid rain. The heavily industrialized northeastern part of the United States, from the Midwest through New England, releases sulfur and nitrogen emissions that result in a precipitation pH of 4.0 to 4.5. This region is the geographic center of the nation’s acid rain problem. The solution to the problem is found in (1) using fuels other than fossil fuels and (2) reducing the thousands of tons of SOx and NOx that are dumped into the atmosphere per day when fossil fuels are used.

Subject: Chemistry Number of words: 275 Number of sources: 2Formatting

Question Subject: Chemistry  Number of words: 275 Number of sources: 2Formatting style: APAPart A: You are the Environmental Coordinator for a demolition company that still prefers the use of dynamite sticks for demolition. You are tasked with the compliant and safe transport of dynamite to the demolition sites. Identify the proper placarding, labeling, and shipping documentation of the transport vehicle as required by the DOT.  Part B: The vehicle that was transporting the dynamite sticks in Part A has been struck by another vehicle. A small fire appears to be spreading from a tire on a vehicle at the scene of the accident. Identify the explosive material that could be involved, and describe the chemical interaction that could be occurring as a result of the collision between the two vehicles. What immediate action should the EHS and FS responders take to protect human health and the environment?

Here is the question and answer I was given. I

Question Here is the question and answer I was given. I can’t seem to make sense of it. What approach should I use when given questions such as this one? Also, wouldn’t I need to convert the temperature to kelvin? Attachment 1 Attachment 2 ATTACHMENT PREVIEW Download attachment Answer.png 10. 11.43C Ice cubes = 2×20.0 g = 40.0 g; 40.0/18 g/mol = 2.22 mole Warm water = 285 g; 285/18 g/mol = 15.8 mole Assume heat gained by ice cubes heat lost by warm water = 0 Heat gained by ice cubes = ice @ -11.C

ubject: CHEMISTRY 2046Determine the Unknown Molecule based upon the Intermolecular

Question ubject: CHEMISTRY 2046Determine the Unknown Molecule based upon the Intermolecular Forces – chart below:How can I determine the Intermolecular forces for the following Unknown Solvents AND what the Unknown Solvents are based on the following information: Unknown A – Temp Final = 9 degree celsius // average temp over 10 readings = 11.9 degree celsius Unknown B – Temp Final = 10 degree celsius // average temp over 10 readings = 14.9 degree celsius Unknown C – Temp Final = 20 degree celsius // average temp over 10 readings = 20.6 degree celsius Unknown D – Temp Final = 20 degree celsius // average temp over 10 readings = 20.7 degree celsius Unknown E – Temp Final = 17 degrees celsius// average temp over 10 readings = 19.6 degree celsius

Aluminium foil (a). has a Length of 9.8 cm, Width

Question Aluminium foil (a). has a Length of 9.8 cm, Width 9.2 cm and a Mass of 0.42 grams. Aluminium (b) has a Length of 11.1 cm, Width 9.7 cm and Mass of 0.46 grams. Aluminium (c) has Length of 11.2 cm, Width of 9.0 cm and 0.43 grams. Determine the thickness of each aluminium foil in micrometers (um) by using a density of 2.70 g/cm^3.

Solubility is a physical change. When the crystals disappear into

Question Solubility is a physical change. When the crystals disappear into solution and reappear as acid and base are added, is this a physical or chemical change? Explain.

How are the names of a transition metal atom and

Question How are the names of a transition metal atom and its cation different?

Hello, what does it mean for something to have wavelike

Question Hello, what does it mean for something to have wavelike properties and for something to have particulate properties?

For each of the following compounds, state whether it is

Question For each of the following compounds, state whether it is ionic or covalent. If it is ionic, write the symbols for the ions involved:(a) NF3(b) BaO,(c) (NH4)2CO3(d) Sr(H2PO4)2(e) IBr(f) Na2O can anyone help explain this?

During an evaluation of an automated analyzer sample A with

Question During an evaluation of an automated analyzer sample A with a very low level of analyte was tested in position 1 and 3 and sample B with a high concentration was placed in the second position. The results are as follows: Sample A (in position 1): 9.5 mIU/mL Sample B (in position 2): 112,000 mIU/mL Sample A (in position 3): 10.1 mIU/mL Reported within-run precision 4% 1. Is the difference in the values for Sample A in position 1 and position 3 due to allowed variability in the instrument? If not, what is the likely cause? (1.5 pts)3. Briefly describe at least two steps that can be taken to reduce this phenomenon?

What is the best 5 reactions from your opinion i

Question What is the best 5 reactions from your opinion i can use them to move a chemical small car ( 30 m ) and it should be without battery and must produce Co2 and water ??

draw two cysteines at ph 7 connected by a disulfide

Question draw two cysteines at ph 7 connected by a disulfide bond

One mole of liquid water is in closed vessel whose

Question One mole of liquid water is in closed vessel whose temperature is 270 K, whose initial internal pressure is 1 atm, and whose interior volume is 50 times the volume of the water. Assuming that the gases are ideal, calculate the pressure in the vessel.

One mole of liquid water is in a closed vessel

Question One mole of liquid water is in a closed vessel whose temperature is 273 K, whose initial internal pressure is 1 atm, and whose interior volume is 50 times the volume of the water. Calculate the volume of the vessel. Now the vessel is heated to the boiling point of water. Assuming that the gases are ideal, calculate the pressure in the vessel.

Freezing point of water: Measure 10.0 mL of distilled or

Question Freezing point of water: Measure 10.0 mL of distilled or deionized water with a graduated cylinder and pour it into a test tube. Position the test tube with the water in the center of a 250-mL beaker. Add ice around the test tube until the beaker is half full. Add ~10 g of salt to the ice surrounding the test tube. Continue to add ice until the beaker is filled. Pour ~10 g of salt on top of the ice. Distribute the salt evenly around the tube. Insert a thermometer into the tube and gently stir the water. Record the initial temperature for Time 0.0.   Continue to stir gently and record the temperature every 0.5 min (30 s) until the temperature remains constant for 3 consecutive readings. The temperature may go lower and then come back up before remaining constant. This lower temperature is due to supercooling, but it should be ignored. The temperature that remains constant for at least 3 readings is the water’s true freezing point. Remove the test tube, leaving the hole in the ice intact for the next part. Observe the ice crystals that have formed in the test tube. Pour out the water and crystals and dry the test tube. Save the salt/ice bath for the next activity. Freezing point of a solution with compound X: Weigh 4.0 g of the unknown compound X on a piece of filter paper or weigh boat. Carefully pour compound X into A test tube. Measure 10.0 mL of water and pour it into the test tube with compound X. Swirl the test tube gently until all of compound X has dissolved. Place the test tube in the center hole of the salt/ice bath. Insert a thermometer into the solution and gently stir. Record the initial temperature for Time 0. Continue to stir gently and record the temperature every 0.5 min (30 s) until the temperature remains constant for 3 consecutive readings. This is the freezing point of the compound X solution. Remove the test tube and observe the ice crystals that have formed within it. 3. If you repeated this experiment using an unknown at half the molality of compound X (0.5 m) but with a Van’t Hoff factor of 2, would the freezing point depression be higher, lower, or the same? Explain your answer. 4. You mistakenly used ethanol (d=0.79 g/mL; Kf= 1.99 °C/m) instead of water in this experiment. Calculate the molar mass of compound X using the DTf you experimentally determined. Show your calculations. 

55 unread replies.55 replies. Describe your own views on global warming and

55 unread replies.55 replies. Describe your own views on global warming and how it is effecting our world today and into the future.https://www.bing.com/videos/search?q=pbs global warming the signs and the science

Describe your own views on global warming and how it is effecting

Describe your own views on global warming and how it is effecting our world today and into the future.

help with an Organic chemistry

I attached a file shows the questions and I need an answer all of it and explanation please thanks.

Describe your own views on global warming and how it is

Describe your own views on global warming and how it is effecting our world today and into the future.https://www.bing.com/videos/search?q=pbs global warming the signs and the science

all the questions are uploaded in the pictures. please make sure the

all the questions are uploaded in the pictures. please make sure the sig figs are correct.

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