Taking Sides

Please do Question 2

2. In a Mars Direct mission, the astronauts would return home in an Earth Return Vehicle (ERV) fueled by     methane and oxygen produced from terrestrial hydrogen and Martian CO2     helium-3 extracted from the lunar surface     finely-ground Martian rocks accelerated by an electromagnetic mass driver     cheap, traditional kerosene fuel brought from Earth   We might go back to the Moon someday to mine the lunar surface for an energy resource called     methane     antimatter     hydrazene     helium-3

The Covid-19 pandemic has many experts commenting on the science associated with the virus - origins, vaccines, monoclonal antibodies, masks, social distancing.  It is important to consider what the experts say, but to also evaluate their statements.  We will start with the scientific method.  I want you to outline the scientific method from what you have been taught in previous classes.  You can list steps, parts, process, short descriptions, whatever.  If not taught in previous classes, then you will make your best guess about it.

Consider Molecule X, which is found in all living cells. This single-strand nucleic acid folds into a compact shape and forms a large complex with about 80 proteins. This complex is responsible for synthesizing new proteins in a living cell. What is the name of X? Your answer should be one word, or a short two- or three-word phrase. Spelling counts. Note: if there is more than one possible answer, separate each answer with a comma. ☐ ×

Some greenhouse gases, such as fluorocarbons (CFCs, HFCs, PFCs, etc.), are human-made. Others, such as water, methane, and carbon dioxide, are naturally produced. Which type of greenhouse gas (human-made or natural) is more difficult to control and eliminate? Which types are easier? In three to five sentences, provide evidence for your argument.

You work in a research organization that is looking for markers of various diseases that can be used as a diagnostic for the disease. It has been reported in the past that high levels of Cu are found in the sweat of people with cystic fibrosis. One of the research projects is focused on looking for high levels of Cu in samples that can be obtained non-invasively such as saliva, sweat, hair, nails, etc. The lab will analyze large samples for Cu. What instrument would you recommend purchasing to support this work, Atomic absorption spectrophotometer or an inductively coupled plasma atomic spectrophotometer? Explain the basis for your decision.

What is calibration and why is it essential in relation to food analysis? Provide examples.

A book like in the picture below contains writings and pictures made byblack or colored ink. The paper itself and the ink are made from different minerals.Can you name some minerals that are used to complete this book? Write and justify your answers.

A sample of iron weighing 15.0 g was heated with potassium chlorate (KCIO3) in an evacuated container. The oxygen generated from the decomposition of KCIO3 converted some of the Fe to Fe2Oe. If the combined mass of Fe and Fe203 was 17.9 g, calculate the mass of Fe203 formed and the mass of KCIO3 decomposed. Please show your work for credit and comment on another students such as asking a question or pointing the student in the right direction.

I couldn't put both sections of the question into one picture, so please solve both sections. Thank you.

Fill in the following blanks. As the dye concentration increases, the absorbance of the light       [linearly increases, linearly decreases, exponentially increases or exponentially decreases]. The dye concentration units are [molar (M), millimolar (mM) or grams per liter (g/L)]  . Although most people wrongly conclude that absorbance has units nm, in fact, absorbance is unitless. This is because it results from a ratio of light through a colored sample relative to light intensity through a clear (blank) sample.  The units for the slope of the graph would be       [mM, 1/mM or nm]  . Hint: the slope is the change in y values divided by the change in x values. The units for the y-intercept of the graph would be       [nm, nM or unitless]  . The value for the slope of the line that describes the absorbance data is       [6.4597 or 0.0008]  The value for the y-intercept of the line that describes the absorbance data is       [6.4597 or 0.0008]  .

24 25 26 A chemistry student weighs out 0.0202 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1800M NAOH solution. Calculate the volume of NaOH solution the student will need to add to reach the equivalence point. Round your answer to 3 significant digits. mL x10 Continue Submit Assignment 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center | Accessibility C 80 000 000 F1 F2 DII DD F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 @ 2$4 % &

Write balanced equations for the reaction of Al(OH)g with stomach acid (HCI). Express your answer as a chemical equation. Identify all of the phases in your answer. | ΑΣφ ? Submit Request Answer Part B Write balanced equations for the reaction of Mg(OH), with stomach acid (HCI). Express your answer as a chemical equation. Identify all of the phases in your answer.

Supply the missing information in the table. (Given in Blue). Answers in scientific notation should be in this sample format >>> 1.0 x 10-14

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?

please highlight the correct answer

You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in the sample containing Fe. Hemoglobin contains 3.83% by mass of a compound called heme (C₃₄H₃₂FeN₄O₄, MW = 616.49 g/mol). You find that your 11.5 mg blood sample contains 30.5 micrograms of Fe. What is the mass percent of hemoglobin in your protein sample?

Discuss the role of Cyrus the Great in the establishment of the Achaemenid (Persian) Empire and the ideology he used to legitimize his rule. How does the "legend" of Cyrus fit with his accomplishments and the image he wants to portray? . Discuss the admistrative reforms carried out by Darius I and their relevance for the future of the empire.

You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in the sample containing Fe. Hemoglobin contains 3.83% by mass of a compound called heme (C₃₄H₃₂FeN₄O₄, MW = 616.49 g/mol). You find that your 11.5 mg blood sample contains 34.9 micrograms of Fe. What is the mass percent of hemoglobin in your protein sample?   -don't prematureley round

Enter the expression ¹4N+a, where a is the lowercase Greek letter alpha. Express your answer as a chemical expression. ΑΣΦ xa Xb a b b X 11 14 ¹4 N + He→ ¹ 0 +1¹H 17 8 www ? X **** |*****

Which statement about detecting temperature is TRUE?   Nociceptors detect small changes in temperature.   Your skin has an equal distribution of temperature receptors.   There are separate receptors for hot and cold.   There are over 20 types of temperature receptors.