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: Calculate the amount of heat needed to melt 76.0 g of solid ethanol (CH3CH₂OH) and bring it to a…

A:

Q: 1. 27 JJ to calories Express your answer using two significant figures.    2. 5300 JJ to kilojoules…

A:

Q: Which answer includes all the following that are chemical changes and not physical changes? I.…

A: Physical change is a reversible change. It involves a change in the physical state, size or shape of…

Q: Convert 6.67 mm3 to cm3

A: 1mm =0.1 cm

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: 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: True or False  1) A 10 cm3 piece of magnesium will have a greater mass than a 10 cm3 piece of zinc.…

A: Given, Volume of Magnesium = 10 cm3 Density of Magnesium = 1.7gmL Volume of Zinc = 10 cm3 Density of…

Q: 3. Provide the answer with the appropriate number of significant figures. a. 6.03 x 650 b. 2.7 x…

A:

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: On a football team, the center masses at 121 kg, the two guards and the two tackles mass at 118 kg…

A:

Q: 130. A titanium bicycle frame contains the same amount of tita- nium as a titanium cube measuring…

A: The volume of the titanium cube is calculated by using equation (1). V=a3...... (1)V=6.8 cm3=314.43…

Q: A). The density of osmium is reported by one source to be 22,610kg/m3. What is the density in g/cm3?…

A: A.) The density of osmium is reported by one source to be 22,610kg/m3. This is to be converted into…

Q: The distance from Earth to the Sun is 1.50 x 108 km. What is the distance expressed in Gigameters…

A: Conversion of units : This can be done by a method called unitfactor method or called dimensional…

Q: A popular car has an engine that is reported to have a volume of 4320 1 in the size in cubic inches…

A:

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: Which subshells (s, p, d, f, or g) can have electrons with the indicated magnetic quantum number…

A:

Q: Be able to perform multi-step unit conversions involving metric and standard (U.S.) units, given the…

A: The given data contains, A boat travels 35.2 miles per hour.

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: Steve races to the nearest taco stand at lunchtime and sees that his pedometer recorded his peak…

A: Here given, Steve's peak speed = 102.5 cm/s We know, 1 km = 100000 cm 1 h = 3600 s

Q: 1.43 Perform the following conversions: (a) 106°F (the body temperature of many birds) to K and °C…

A:

Q: 1.69*7.32

A:

Q: If object A weighs 6.0 grams and has a volume of 3.0 mL and object B weighs 9.0 grams and has a…

A: Given :-  Mass of object A = 6.0 g  Volume of object A = 3.0 mL  Mass of object B = 9.0 g  Volume of…

Q: 7. José Altuve is a baseball player who plays for the Houston Astros. An Altuve is equivalent to his…

A:

Q: A. Identify whether the following example is a physical change or a chemical change. 1. Methanol…

A: A chemical change is distinguished by a physical change when there is a complete change in the…

Q: A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is…

A: The horizontal spacing between molecules is 16.32 nm in a crystal . We have to find out the total…

Q: 10 C of charge passes a point in a circuit in 2 minutes. The current in the circuit s... A 0.083 A.…

A: Given,  Charge = Q = 10 C  Time = t = 2 minutes  Current in the circuit = I = ?

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: Find the difference between the value of x2 and the sum of x1 plus x3.; let x4 be equivalent to the…

A:

Q: A 75 g sample of sodium chloride (table salt) is to be produced by evaporating to dryness a quantity…

A: NaCl = 3.5 % by mass % by mass = Mass ofsolutemass of sea water solution×1003.5 % = M1 g×100M =…

Q: Two identical sized sheets of copper and gold are placed side by side on a table. If the copper…

A: Density of gold is 19.3 g/cm3 & density of copper is 8.96 g/cm3. Now, let the cross sectional…

Q: 8. Convert 46.8°C to degrees Fahrenheit and Kelvin.

A:

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: Aluminum is a useful metal because it can be rolled into thin sheets and bend into different shapes.…

A: All the chemical elements can be broadly divided into metals, metalloids, and nonmetals according to…

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.