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How many milliliters of water at 23 C with a density of 1.00 g/mL must be mixed with 180 mL (about 6 oz) of coffee at 95 C so that the resulting combination will have a temperature of 60 C? Assume
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How many atoms or molecules are in 5.0 moles of the following? a) O b) N c) MgCl2 d) C2H3NO
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What volume will 2.50 mol of hydrogen (H2) occupy at -20.0 °C and 1.5 atm?
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Write the net ionic equation for the precipitation reaction between copper(II) nitrate and ammonium sulfide.
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An amount of a radioactive isotope is allowed to decay. It had a half life of 10 years if the sample is allowed to decay for 30 years what fraction of the isotope will remain?
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Please answer all six questions in your own words. Do you believe intelligence is a fixed trait? Either you are smart, or you aren't?Describe a time in your life when you regret not trying something,
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Important Information A carat is equivalent to exactly 200 mg Sugar has a density of 1.59 g/cm3 A diamond is made entirely of carbon
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Background Information Mary Poppins said a spoonful of sugar (1 tsp) makes the medicine go down. Marilyn Monroe said diamonds are a girl’s best friend. So in other words, diamonds and sugar make eve
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20. The density of liquid water is 0.997 g/mL at 25°C. a. Calculate the mass of 250.0 mL (about a cupful) of water. b. How many moles of water are in 250.0 mL of water? Hint: Use the result of (a). c.
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The concentration of an H2C2O4 solution is determined by titrating it with a 0.1968 M solution of permanganate. The balanced net ionic equation for the reaction is shown below.In one experiment, 24.98
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Calculate the ionization energy (eV) for a 'hydrogen-like' atom with one electron and Z = 3 from the excited state of n=2.
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Find the density of a block with the measurements h = 2.63 cm, w= 1.34 cm, h = 2.57 cm, and mass = 63.22 g. Round your answer to the correct number of sig figs
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Look at attached files, Can anyone handle the assignment?
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Maya made this picture to represent a chemical reaction: The two overlapping circles Maya made this picture to represent a chemical reaction: There are two overlapping circles on the left, one white a
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- A very short and simple first year chemistry experiment of Chemical Detective work - Page 5,6,9,10 only needs to be filled for the experiment
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Please fill out the LAB worksheet with the correct answers.
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A 0.226 g piece of solid magnesium reacts with gaseous oxygen from the atmosphere to form solid magnesium oxide. In the laboratory a student weighs the mass of the magnesium oxide collected from this
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B) Which of The following compounds will have hydrogen-bonding as intermolecular attractions.
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Answer all the question above: What is the general bonding rule for oxygen? (Part 1)Consider the Atomic Tiles model of formaldehyde, CH2O on the worksheet. Is it a good model? If so why? If not, why n
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Can anyone do an abstract & answer these questions in the file attached with NO PLAGIARISM.
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Thank you in advance.
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Create three clear research question using fibers as the sample that can be investigated with a microscope that has both FRET and TIRF capabilities & three hypothesis (one for each question) using
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https://phet.colorado.edu/sims/html/molarity/latest/molarity_en.html
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Can you complete this Virtual Lab for me before Monday night?
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What’s the answer and how do I get it
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which substance has a chemical name ending in - ide? A-H2SO3 B-TiCl4 C- ZnSO4 D- HClO
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Please answer all the questions with the correct answers in the attachment files.
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1. If a car releases 3.2g of sulphur dioxide for every kilometre it travels, what is the mass and volume of SO2 released if the car has travelled 5 KM? [ M.V (room) = 24 dm^5 ] 2. Calculate the maximu
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Why does a substance gain or loss mass during a reaction
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The mass number of an atom is 122 amu and the atomic number is 51. How many neutrons are in the atom?
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How do you do scientific notation
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A scientist hypothesizes that the temperature at which a turtle's egg is incubated determines the sex of the offspring (whether it will be male or female). What is the independent variable?
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A machine shop worker records the mass of an aluminum cube as 176 g. If the density of aluminum is 2.7 g/cm3, what is the length of each side of the cube. (Volume of a cube is s x s x s)
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a) Write the complete electron configurations for each of the following elements: Ar, C, F, Na b) Write the short-hand (core) electron configurations for each of the following elements: V, Zr, Ba, Sn
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How do you solve problems like these?
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Mercury is the only metal that is a liquid at room temperature. Its density is 13.6 g/mL. How many grams of mercury will occupy a volume of 95.8 mL?
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Subject: Chemistry, Science Synthesis reaction and Decomposition reaction Which of the following statements best explains the type of chemical reaction represented by Maya's picture? It is neither a s
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A cone with the mass of 6g has a radius measuring 5 cm and a height of 2 cm . What is its density
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Which risk mitigation framework allows scope for research and acknowledgement for risk mitigation?The framework, used by the management in most companies, provides the option of research and acknowled
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How to Draw the Dot Structure for NF3? A Draw the Lewis structure for NF3. A step-by-step explanation of how to write the Lewis Dot Structure for NF3 (Nitrogen Trifluoride). For the NF3 Lewis structur
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help me answer this chemistry question please
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I need help with numbers 8, 9, 10, and 11 with shown work.
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What is a solution?
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I need to solve these with Excel. I did a. Could you explain me b and c in detail please?
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Please answer these two questions below. https://www.youtube.com/watch?time_continue=171&v=yi0hwFDQTSQ&feature=emb_logo At the end of the video you were asked to develop a hypothesis regarding
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Please answer these two questions below. https://www.youtube.com/watch?time_continue=171&v=yi0hwFDQTSQ&feature=emb_logo At the end of the video you were asked to develop a hypothesis regarding
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Complete pages 6-14 exclude page 9 and show work
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I don’t I understand pls help
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I completed all questions but I would like someone to go over my work.
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Using the experimental value for the specific heat of gold at 155 K of cv/R =2.743, estimate the Einstein characteristic temperature (in K) - use MW_{Au} = 197.0MW Au =197.0 kg/kmol.
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