The AH for the reaction F (g)-F (g) F is kl, given the data below. IF (g) F (gb-IF, (@ AH=-390 k IF (g) 2F (g)-Fs (g) &H=-7451 Select one: O a. +1135 O b. +35 OC +355 O d. -1135 O e. -35

Q: 8. Conversion problem a. 25.345 g/ml is converted to kg/cm³ b. 203.77 miles/sec is converted to…

A: Solution : These conversions can be done by unitary method.

Q: 4.25 kg of solution A (2.7% salt) is mixed with 2.96 kg of solution B (4.5% salt). What is the final…

A: Mass of solution A = 4.25 kg Mass percent of salt in solution A = 2.7% Mass of solution B = 2.96 kg…

Q: A woman is planning on running a 10K (10.0 km) race. a. How many yards will she race? (1 yard = 3…

A: (a)Conversion of kilometers to yards:

Q: 100.-kg individual the larger de FISWGUI2 Children's Liquid Motrin contains 100. mg of the pain…

A: 1 teaspoon = 5 ml (Given) The medicine contains 100 mg of Ibuprofen per 5 ml which is the same as…

Q: Calculate the kinetic energy of a 311. kg car moving at a speed of 10.8 Round your answer to 3…

A: kinetic energy of an object is defined as the energy that the object possesses due to its motion.

Q: how do i convert 5.7*104miles*lb/hr to cm*g/sec?

A: Given :- 5.7*104miles*lb/hr  To convert :- 5.7*104miles*lb/hr to cm*g/sec

Q: Due to similarities in protein composition, blood can be subsituted gram-for-gram for eggs in baking…

A: * Volume of blood = 5 L * 1 gram of blood = 1 mL of blood  * 65 gram of blood = 1 egg * 1L = 1000 mL…

Q: 56. Some people believe that large doses of vitamin C can cure the common cold. One commercial over-…

A:

Q: Q5: 1.44 grams of a sample of marble (impure calcium carbonate) dissolved in 40 ml of 1.0 normality…

A: Initial concentration of acid (M) = 1.0 M Initial volume of acid (M) = 0.04 L Initial number of…

Q: It is known that the density of mercury is 13.54 times the density of water. What volume of this…

A:

Q: Which of the following is 5? 2P Unit Symbol Quantity Length meter Mass klogram Time second…

A: Luminous intensity

Q: What distance in miles can you drive in your new Prius hybrid, if your car gets 48.0 miles per…

A: The given question is based on dimensional analysis. Dimensional analysis is the analysis of the…

Q: What is its mass in grams?  (4 sf)

A:

Q: A thermometer is taken from a room where the temperature is 18°C to the outdoors, where the…

A: The rate at which a body’s temperature changes is directly proportional to the temperature…

Q: 7) Cats love to play with balls of yarn. If a 3.75 inch diameter ball of yarn weighs 0.110 lbs, what…

A: Given: Mass of ball = 0.110 lb Diameter of ball = 3.75 inch Radius of ball = 3.75 inch/2 = 1.875…

Q: In one box of nails, there are 75 iron nails weighing 0.280 lblb . The density of iron is 7.86…

A:

Q: 4. Three different people weigh a standard mass of 2.00 g on the same balance. Each person obtains a…

A: Accuracy - It is the virtue of obtained measurements to match the actual value of the any given…

Q: A. Identify if the mentioned events underwent either chemical or physical changes? 1. You trim your…

A: Physical change: In physical change the appearance of the matter changes but the kind of matter does…

Q: B. 0.108 lbs/in3 C. 534 lbs/in3 D. 0.697 lbs/in3 2.)The density of an alcohol is 0.788 g/mL. What…

A: Density = 19.3 g/cm3  Density = lbs/in3

Q: 9.1. The egg whites from four "large" eggs occupy a volume of 112mL. The mass of the egg whites from…

A:

Q: 8.A) The density of a metal sphere is 25.0 g/L and has a mass of 1.55 mg. What is the radius of the…

A: The ratio of mass to the volume is known as density.

Q: A solid metal sphere has a radius of 3.53 cm and a mass of 1.796 kg. What is the density of the…

A: The given data contains, Radius of the sphere = 3.53 cm. Mass of the sphere = 1.796 kg.

Q: Professor Gomez's dogJasper, is a very anxious little guy, so she baked him some treats that contain…

A: Treat contains 150ug (microgram) melatonin. The recommended dose is 0.1 milligrams of melatonin per…

Q: An irregularly shaped rock weighs 268.42 kg. It is placed in a cylinder that has 50.6 L of water.…

A: Given, Note: 1 Kg = 1000 g Mass of rock = 268.42 kg = 268.42 × 1000 g = 268420 grams Initially,…

Q: A 10.0 mL sample of oil is transferred into a beaker with a mass of 43.559 g. The mass of

A: given  beaker mass =43.559 gr  sample of oil volume =10 ml beaker mass with oil=56.890 gr mass of…

Q: 1. Convert 1357 feet into kilometers. (1 mile = 5,280 feet) (1 mile = 1.609 km) 2. Convert 4.2…

A:

Q: Which of the following is greater? a. 8.5 grams per milliliter or 8500 Kg/ m3 b. 5 x 10-2 kg/m3 or 5…

A: (a) --> Both are equal  8.5 g/ml or 8500 kg/m3 We know that, 1 m3 = 106 ml and 1 kg = 1000 g So…

Q: 2. Find the answer and record the answer to correct significant figures If only the answer is given…

A:

Q: A dose of aspirin of 5.0 mg per kilogram of body weight has been prescribed to reduce the fever of…

A:

Q: 1.7. A 225-pound athlete needs to run a distance of 546.807 yards. Solve for the energy he will…

A: Conversion of pounds to kg: 1 pound=0.4536 kg225 pounds=225×0.4536=102.06 kg Conversion of yard into…

Q: Calculate the density of 50.0 g of an isopropyl alcohol-water mixture (commercial rubbing alcohol)…

A: Mass of isopropyl alcohol-water mixture = 50.0 g Volume = 63.6 mL Density = ?

Q: Suppose you take a trip to the local coffee shop to order a regular cup of hot coffee ( temperature…

A:

Q: (5) One meter contains how many micrometers? A: 1x 109 B: 1 x 10-9 C: 1 x 10-6 D: 1 x 103 E: 1 x 106

A: 1 Meter contains 1 × 106 micrometres.

Q: Gentamicin sulfate is a water-soluble antibiotic that is used to treat a variety of bacteria,…

A: 8.)  We would use conversion factor to convert mass from grams to kg .  Then using the drug order,…

Q: 12. If the volume of a substance is 98.2 cc and it has a mass 56 12 grams, it should have a density…

A: Volume (V) = 98.2 cc Mass = 56.12 gram

Q: Linus Pauling (Recipient of two noble prizes one for chemistry and another for peace)Wrote a book,…

A: Given, one 500.5 mg tablet contains 20% by mass Vitamin C. The mass of vitamin C in one 500.5 mg…

Q: The pretzels in a bag of pretzels have a mass of 238.5g and costs $1.49. There are 18 pretzels in…

A: mass of pretzel bag = 238.5 gCost of pretzel bag   = $ 1.49No of pretzels in 1 bag = 18

Q: 6. An object has a mass of 35 0 grams. On Huey's balance, it weighs 34.92 grams What is the percent…

A: Given: True mass of the object= 35 g Measured mass of the object=34.92 g

Q: 5. An irregularly shaped piece of metal is placed in a graduated cylinder containing 15.0mL of…

A: We have to predict the density of metal .

Q: 4. Determine the thickness of a sheet of iron that measures 22.5 cm by 33.8 cm and has a mass of…

A: Given that: Length of sheet (l) = 33.8 cm Width of sheet (w) = 22.5 cm Mass of iron sheet = 1260 g…

Q: Part C - Type the number of significant figures that the result of the following aritmetic…

A: In scientific notation, the significant figures of a number are digits that carry meaningful…

Q: 63. Identify the following as either a homogeneous mixture, heterogeneous mixture, element, or…

A: In this problem, we have to discuss the terms element and compounds. Element: It can be defined by…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.