IRIS MODULE ANSWERS HAYLIE

PLEASE DON'T WRITE YOUR ANSWER ON A PAPER. I CAN'T UNDERSTAND HANDWRITTEN. 2. It is 3:00 in the afternoon, and you want to drink a cup of coffee. When you went to the kitchen, you have found out that there is no available instant coffee, only coffee beans. How would you make a cup of coffee using this coffee beans? Explain your answer. 3. In number two, if you are going to put sugar in your coffee, which kind of sugar will you use, sugar in a cube, or fine sugar? Explain your answer.

how important is chemistry in solving ecological problems?

2 What is reservior in environmental chemistry? What are O1D (O singlet D) and O3P( O priplet P)? Not sure if it's written in this way.

CHCASE Dashboard Item 3 A student modek four types of land use in a city. Each model has the same amounts of soil, pebbles, and gravel. A bottle is placed under each model to represent an aquifer, as showWn. Item 4 Item 5 Item 6 Item 7 Aqulfer Aquifer Item 8 Model P Model Q Item 9 Item 1 Item Item Aquifer Aquifer Model R Model S Which model represents land use that will recharge groundwater in a city the most, and why? O Model P; it has green spaces with grass and plants. O Model Q; it has neighborhoods with large front yards. O Model R; it has buildings near paved roads and parking lots. O Model S; it has houses near large trees with deep roots.

What is meant by the statement, “Perhaps no other single natural resource is as influential as soils.”? (Why is soil so important?) What are the 5 main functions of soil (list & describe each)

Can you help me answer this type of question from my study review package please

3-4 sentences   1. Briefly state what separates science from opinion?   2. Water is the most important molecule to life on this planet. Briefly explain why water has the unique properties it does (high boiling point, high freezing point, high capacity of heat, etc.), especially for a small molecule.   3. How does the depth of water affect light availability? How deep does light penetrate ocean water? How might this affect ocean life?   4. The world oceans are dynamic. One reason is because the oceans are in constant motion. One means of water motion are waves. What are waves? What are three factors that affect wave height?

haspi chemical reactions for living systems supplement

The World Health Organization (WHO) recommends us to limit "free sugar" intake to no more than 5 % of the total daily Calories consumed. Sugars like sucrose are considered "free sugars" and provide about 4 Calories per gram. If an individual consumes 2000 Calories in a day, what is the maximum amount of sugar they are advised to take in? How does this amount compare to the added sugars found in popular soft drinks?

In relating the existing concepts about 'cigarette smoking' in Chemistry and Science-related RRL, what is/are that chemical(s) which is/are ALSO present in the 'product side' of a clean combustion chemical reaction equation?  a. carbon monoxide and carbon dioxide b. carbon c. carbon dioxide and water d. nicotine and tar Choose only one answer. Clue: Letter d is not the answer

What is a possible testable question (in correct format) That Mrs love might ask for this Sanrio?

Once you have completed your chemistry experiments, either by producing products or leaving reagents behind, you must put these substances into the appropriate chemical waste container. The list of items below includes those that will be used in your labs and are thus considered "waste." From this list, select the correct location to deposit each substance once it has been deemed Waste: (match the number on the right with the waste on the left, there will be one number that is not used in the matching) Bromoacetone(1) 1. Inorganic acids and salts 2. Inorganic bases > NaCl(aq) HCl(aq) Acetone(1) Cu(s) NaOH(aq) 3. Solid waste 4. Organics 5. Halogenated Organics 6. Pour down the sink 7. Garbage pail

Choose the best answer among the choices under each question/ statement.  Thank you

The mass of Earth's atmosphere is 5.3 x 10 metric tons. The atmospheric abundance of helium is 0.7 ppm when expressed as a fraction by mass instead of by volume, as in Table 4-1. How many metric tons of helium are there in the atmosphere? How many moles of helium is this?

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.

You heat 2.53 grams of metallic mercury in air, which produces 2.73 grams of red-orange residue. Assume that the chemical change is the reaction of the metal with oxygen in the air.    What is the mass of oxygen that react? When you strongly heat the red- orange residue, it decomposes to give her back the mercury and release the oxygen, which you collect. What is the mass of oxygen you collected?

Many common materials that we ingest, though quite safe in reasonable quantities, become toxic when taken in very large doses. A measure of toxicity is the LD 50 value (Lethal Dose, 50%). It is the quantity of material, expressed in mg of material per kg of subject-body-weight that, if administered to a population of subjects, would cause 50% of the population to die. The LD 50 value for FD&C Red Dye No. 40 is >10,000 mg/kg in rats. Assume that the LD 50 value for humans is the same as for rats. Calculate the number of mg of Allura Red present in an 12 fluid ounce glass of the beverage you used in this lab. Assume that the concentration of Allura Red in the beverage is 0.000034 M. The molar mass of Allura Red is 496.42 grams/mol 1 fl oz = 29.5735 mL

Many common materials that we ingest, though quite safe in reasonable quantities, become toxic when taken in very large doses. A measure of toxicity is the LD 50 value (Lethal Dose, 50%). It is the quantity of material, expressed in mg of material per kg of subject-body-weight that, if administered to a population of subjects, would cause 50% of the population to die. The LD 50 value for FD&C Red Dye No. 40 is >10,000 mg/kg in rats. Assume that the LD 50 value for humans is the same as for rats. Calculate the number of number of glasses of Allura Red sports drink, each containing 8.8 mg of Allura Red, required to reach the LD 50 of 10,000 mg of Allura Red/kg body weight. Assume the person has a body weight of 165 lbs. 2.205 lbs 1 kg !! You may assume two significant figures but do not use sčientific notation. Do not include units with your answer. Your Answer: Answer

Many common materials that we ingest, though quite safe in reasonable quantities, become toxic when taken in very large doses. A measure of toxicity is the LD 50 value (Lethal Dose, 50%). It is the quantity of material, expressed in mg of material per kg of subject-body-weight that, if administered to a population of subjects, would cause 50% of the population to die. The LD 50 value for FD&C Red Dye No. 40 is >10,000 mg/kg in rats. Assume that the LD 50 value for humans is the same as for rats. Calculate the number of number of glasses of Allura Red sports drink, each containing 11.1 mg of Allura Red, required to reach the LD 50 of 10,000 mg of Allura Red/kg body weight. Assume the person has a body weight of 200 lbs. 2.205 lbs = 1 kg You may assume two significant figures but do not use scientific notation. Do not include units with your answer.

Convert the experimental glucose concentration (provided in the table below) from mM (millimolar) to g/100 mL. Write a step-by-step guide with key words for the Chem 2 students on how to do these calculations. You can use diagrams, a table or just type the steps out. Ensure the steps are clearly written and easy to follow  Drink # Glucose Concentration in mM 1 2.340 mM 2 0.288 mM 3 3.500 mM 4 0.136 mM 5 1.673 mM

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PLEASE DO HELP ME.. NO NEED FOR EXPLANATION...THIS IS JUST A PRACTICE EXERCISE FOR OUR UPCOMING ORAL AND THESE ARE THE SAMPLE QUESTIONS..PLEASE ANSWER SHORTER.. I WILL GIVE HELPFUL RATING AFTER

2- Make a comparison between brittle and ductile materials Brittle Materials Ductile materials

Many common materials that we ingest, though quite safe in reasonable quantities, become toxic when taken in very large doses. A measure of toxicity is the LD50 value (Lethal Dose, 50%). It is the quantity of material, expressed in mg of material per kg of subject-body-weight that, if administered to a population of subjects, would cause 50% of the population to die. The LD50 value for FD&C Red Dye No. 40 is >10,000 mg/kg in rats. Assume that the LD50 value for humans is the same as for rats. Calculate the number of mg of Allura Red present in an 9 fluid ounce glass of the beverage you used in this lab and use this calculation to determine the number of such glasses of Allura Red sports drink required to reach the LD50 of 10,000 mg of Allura Red/kg body weight. Assume that the concentration of Allura Red in the beverage is 0.000038 M and the person has a body weight of 175 lbs. The molar mass of Allura Red is 496.42 grams/mol 1 fl oz = 29.5735 mL 2.205 lbs = 1 kg You may assume…

Many common materials that we ingest, though quite safe in reasonable quantities, become toxic when taken in very large doses. A measure of toxicity is the LD50 value (Lethal Dose, 50%). It is the quantity of material, expressed in mg of material per kg of subject-body-weight that, if administered to a population of subjects, would cause 50% of the population to die. The LD50 value for FD&C Red Dye No. 40 is >10,000 mg/kg in rats. Assume that the LD50 value for humans is the same as for rats. Calculate the number of mg of Allura Red present in an 9 fluid ounce glass of the beverage you used in this lab and use this calculation to determine the number of such glasses of Allura Red sports drink required to reach the LD50 of 10,000 mg of Allura Red/kg body weight. Assume that the concentration of Allura Red in the beverage is 0.000038 M and the person has a body weight of 175 lbs. The molar mass of Allura Red is 496.42 grams/mol 1 fl oz = 29.5735 mL 2.205 lbs = 1 kg You may assume…