1. Calculate the velocity (in m/s) of a 2.34-g object that has Ek = 46.2 J. 2. Calculate the wavelength (in nanometers) of light with energy 1.32 x 10-26 kJ per photon.

If the following three thermochemical equations are added together, what is the resulting equation:2 XO2 (g) +2 CO (g) →→ 2 XO (g) + 2 CO2 (g)2 XO (g) + 2/3 CO2(g) →→ 2/3 X3O4 (s) + 2/3 CO (g)2/3 X3O4 (s) + 1/3 CO2 (g) →→ X2O3 (g) + 1/3 CO (g)     Question 17 options:   6 XO (g) + 2 CO2(g) →→ 2 X3O4 (s) + 2 CO (g)   2 XO2 (s) + CO (g) →→ X2O3 (s) + CO2 (g)   C (s) + 3 XO2 (g) →→ X3O4 (g) + CO2 (g)   2 X3O4 (s) + CO2 (g)  →→ 3 X2O3 (g) + CO (g)   CO (g) + XO2 (g) →→ XO (g) + CO2 (g)

In an experiment a group gathered the following data: Mass of test tube (g) 21.3Mass of test tube and metal (g) 52.7Mass of beaker (g) 120.40Mass of beaker and water (g) 137.54Initial temperature of hot metal (°C) 80.6Initial temperature of cold water (°C) 1.1Final temperature of the mixture (°C) 21.6 To the thousandths place, what is the specific heat of the metal used in the experiment above?

be sure your answer is correct and have the correct number of significant digits

Measurements of a patient's temperature are routinely done several times a day in hospitalsDigital thermometers are used, and it is important to evaluate thermometers and select the best one. The accuracy of these thermometers is checked by immersing them in liquids of known temperature. Such liquids include an ice-water mixture at 0.0and boiling water at 100.0C at exactly 1 atmosphere pressure (boiling point with atmospheric pressureSuppose the data shown in the following table were obtained on three available thermometers and you were asked to choose the "best one of the three Which would you choose? Explain your choice

Ery 1 3 M (M) 2req The production capacity for acrylonitrile (C3H3N) in the United States is over 2 billion pounds per year. Acrylonitrile, the building block for polyacrylonitrile fibers and a variety of plastics, is produced from gaseous propylene, ammonia, and oxygen: 2C3H6(g) + 2NH3(g) + 30₂(g) → 2C3H3N(g) + 6H₂O(g) Assuming 100% yield, determine the mass of acrylonitrile which can be produced from the mixture below: Mass 7.28x102 g 5.00 x 102 g 1.00 x 103 g In progress Reactant oxygen propylene ammonia oxygen What mass of water is formed from your mixture? mass of water formed = g Calculate the mass (in grams) of each reactant after the reaction is complete: Submit g = mass of acrylonitrile produced Reactant Mass remaining propylene ammonia Show Hints ס ס ס g g Cengage Learning Cengage Technical Support Previous Next Save and Exit

At a festival, spherical balloons with a radius of 220. com are to be inflated with hot air and released. The air at the festival will have a temperature of 25 cand must be heated to 100 c to make the balloons float. 2kg of butane fuel are available to be burned to heat the air. Calculate the maximum number of balloons that can be inflated with hot air..

Find the final temperature if 5000. J is applied to 45.9 g copper that starts at 16.5 degrees C.

Convert 3.20 * 10 ^ 4 J to kilojoules

What is the kinetic energy (in Joules) of a chlorine molecule moving at 167 m/sec?