At a certain temperature, the equilibrium constant K for the following reaction is 0.0075: H₂(g) + 1₂(g) 2 HI(g) Use this information to complete the following table. Suppose a 31. L reaction vessel is filled with 1.9 mol of H₂ and 1.9 mol of 12. What can you say about the composition of the mixture in the vessel at equilibrium? What is the equilibrium constant for the following reaction? Round your answer to 2 significant digits. 2 HI(g) H₂(9)+1₂(9) What is the equilibrium constant for the following reaction? Round your answer to 2 significant digits. 3 H₂(9)+31₂(9) 6 HI(g) O There will be very little H₂ and 1₂. O There will be very little HI. O Neither of the above is true. K = 0 K = 0

Complete the following operations and write your answer with the correct number of significant figures. Use scientific notation when appropriate. 33,401 + 0.345 + 0.00667 + 25,555.1 =

Please don't provide handwritten solution

Perform the following conversions. You must use dimensional analysis and put your answer in scientific notation with correct units and significant figures. a) 65.2 mL to uL (Hint: you must go through the base/metric unit) 4 points b) 65.1 miles/hour to m/s 7 points Please only utilize the conversions provided. If calculations use conversions not provided, your answers will not be graded). c) 35.6 cm2 to km² (You must go through the base/metric unit) 5 points (Please write your answer on a piece of paper. No need to type anything here). Edit View Insert Format Tools Table 12pt v Paragraph v BIU O words I| Proctorio is sharing your screen. Stop sharing Hide

Methane gas and oxygen gas react to form water vapor and carbon dioxide gas. What volume of water would be produced by this reaction if 2.6 mL of methane were consumed? Also, be sure your answer has a unit symbol, and is rounded to the correct number of significant digits. 0|0 X Ś x10

A chemist must dilute 80.6 mL of 82.1 uM aqueous mercury(II) iodide (Hgl,) solution until the concentration falls to 31.0 µM. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in liters. Round your answer to 3 significant digits.

Since density depends on the mass and volume of an object, we need both of these values combined in the correct way to solve for density. Keep in mind that we may not be given the mass and volume directly, or the values may not be given in the units we want and we need to convert to the correct units before solving for density. When converting between metric units, use the prefixes to help you determine the magnitude of a value. The prefix k indicates kilo, 1000. Therefore 1000 g = 1 kg. A 17.0 kg iron weightlifting plate has a volume of 2160 cm³ . What is the density of the iron plate in g/cm³? Express your answer in grams per cubic centimeter to three significant figures. • View Available Hint(s) Hνα ΑΣφ ? density of iron plate = g/cm3

The speed of sound varies according to the material through which it travels. Sound travels at 6.0x 10¹ m granite. Calculate each of these speeds in Note: 1 ft-12 in Note: Reference the SI prefixes and Conversion factors for non-SI units tables for additional information. Part 1 of 2 Round your answer to 2 significant figures. Speed in rubber: 60 x 10 Part 2 of 2 m Round your answer to 3 significant figures. Speed in granite: 1.64 10 through rubber and at 1.96 x 10 ft through

Do not give handwriting solution.

I don't understand the wording. The least significant digit means the last digit?  7.700 X 2.1 = 16.17     would the uncertainty be  0.01 ? 2.132 + 17 + 4.04 = 23.172   would the uncertainty be 0.001 ?