Ch 10 Questions

Need all three plz

Jollibee Burger     Item                             Sodium(mg)                Fat(g)              Calories           Item cost($) Beef Patty                               50                                17                   220                  $0.25 Bun                                         330                             9                      260                  $0.15 Cheese                                     310                              6                     70                   $0.10 Onions                                     1                                  2                     10                    $0.09 Pickles                                     260                              0                      ,. 5                   $0.03 Lettuce                                    3                                  0                      4                      $0.04 Ketchup                                   160                              0                      20…

These questions are not graded! It is strictly for practice. Do questions 1-5.

1. (answer the questions in the tan boxes in the tables below each question) A student conducted an investigation to determine the effect of water temperature on the amount of sugar that dissolves in a beaker of water. Identify components for trial 1 of this investigation. Beaker Number 1 2 3 4 Amount of Water (mL) 100 100 100 100 Amount of Water (mL) Trial 1 Temperature of Temperature of Amount of Sugar Sugar (°C) Water (°C) Dissolved (g) 20 20 20 20 Temperature of Sugar 5 10 15 20 185 189 194 204 Temperature of Water Terms Variable Constant Amount of Sugar Dissolved

Each point on the graph displays the amount of carbohydrates and calories found in ; cup of different vegetables. A line-of-best fit is also shown. 25 20 15 10 1 2 3 4 Carbohydrates (in grams) 5 Which linear equation best represents the line-of-best fit shown? O y = 3x – 4 O y= 4x + 3 O y 4r 6 O y = 5x +7 届 Calculator Calories

Use the References to access important values if needed for this question. Read the data points from the graph and complete the table below. 25 20 15 10 3 Submit 3. 2.

Analytical chemist from Petroleum Development Oman extracted petroleum from crude oil and measured the quantity lost by the extraction to tell how much of the petroleum was . Quantity of Petroleum lost %): 10.8, 11.6, 9.4, 7.8, 9.2, 9.1 , 10.6, 11.6 Should the value 7.8 be rejected from the set of the above results.

Dipping into health When blood pressure is measured over a 24-hour period, this is referred to as ambulatory blood pressure monitoring, three patterns arise. Here are samples of three different individual. Let's call them Dick (1), Tom (2) and Harry (3). 1 2 3 Patient's Paticnt's BP BP Palicet's Upper limit Upper limit 12 Upper lim 124 120 Lower limit Lower Lower limit Time (houn after wakening) Time (hours after awakening) Time (hours after awakenin SYSTOLIC BP (mm Hg)

Gastric acid pH can range from 1 to 4, and most of the acid is HCl. For a sample of stomach acid that is 2.84x10-3 Min HCI, how many moles of HCl are in 10.9 mL of the stomach acid? Express the amount to three significant figures and include the appropriate units. • View Available Hint(s) ? amount of HCI = Value Units Submit Previous Answers

I need help with part A,B,C

a)Describe an experiment to test whether soil pH affects the growth rate of sunflowers. Include all of the following: hypothesis, predictions, controlled variables, independent variable, dependent variable. b)If your experimental data support your hypothesis, what are some next steps that you can do? c)What is a control and why are controls critical to experimental design? d) Why is the dependent variable important to any study?

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

B. Density of Liquid 1. Obtain a sample of distilled water (any quantity of your choice) anddetermine its mass and volume. Record your data on table 3 in theexperimental report 2. Calculate the density of the water sample using equation 1. Substance  Density (g/mL) Substance  Density (g/mL) Aluminum 2.7 Lead  11.3 Brass 8.4 Zinc 7.1  Copper 8.9 Cork 0.26 Tin 7.3 Silver 10.5 Bone 1.80 Rhodium 12.4 Iron 7.9 Platinum 21.45

A group of students performed a melting point experiment to study the physical properties of ionic and covalent solids. The data collected are shown in the table.  Solid Sample Melting Point (oC)  Time Elapsed (min) Table Sugar (sucrose) 186 18 Table Salt (sodium chloride) 500 (not observed) 30  Paraffin Wax 37 4  Vegetable Lard 50 >5 Using the information contained in the table, what is the BEST explanation for the results?A    The melting point of sodium chloride was not observed because ionic solids do not melt, whereas sugar, wax, and lard melted because they are softer than salt.B    The melting points of covalently bonded solids tend to be lower than ionic solids. The melting point of sucrose was greater than the wax or the lard because sucrose has stronger bonds than wax or lard.C    The melting point of sodium chloride was not observed because ionic solids are composed of positive and negative ions that do not melt; whereas, the…

Please answer question 16 parts A and B

101 Chem101 b Search results for 'Using the infor x B Brainly.com - For students. By stu X G Using the information in the tab + -> A app.101edu.co I Apps y! email b bartleby B Brainly.com - For st. = Google Docs M gmail O eagle adv H school email S canvas m Monthly | My Classes 101 Chem101 general E Reading list Question 19 of 44 Submit Using the information in the table, the rate law for the reaction A(g) + 3 B(g) → C(g) + 2 D(g) is Rate [A], (M) [B], (M) (M/s) A) Rate = k[A][B]³ 1.25 0.100 0.850 B) Rate = k[B] C) Rate = k[A][B] 1.25 0.300 2.55 D) Rate = k[A][B]² 3.75 0.200 5.10 2:47 PM P Type here to search 67°F Clear 7/19/2021 近

If a water sample has 0.07 mol of calcium ions in 15 L solution, what is the water hardness level in mg/L? Pay attention to the unit. Hint: For the calcium mass , convert mol to g to mg. (1 mol calcium ion= 40.08 g/mol and 1 g = 1000 mg) Round and report your answer to an integer without decimal place. Report numeric value only, no unit. • Water hardness levels according to EPA Soft: 0-60 milligrams per liter (mg/L) as calcium carbonate Moderately hard: 61-120 mg/L as calcium carbonate • Hard: 121-180 mg/L as calcium carbonate Very hard: more than 180 mg/L as calcium carbonate