What does it mean when a person says everything is made of Stardust?

If I have 7.5 L of a gas in a piston at a pressure of 1.75 atm and compress the gas until its volume is 3.7 L, what will the new pressure inside the piston be?

Given the enthalpies of reaction below, determine the enthalpy change for the reaction: N2O (g) + NO2 (g) 3NO (g). N2 (g) + O2 (g) 2NO (g) ΔH = + 180.7 kJ 2NO (g) + O2 (g) 2NO2 (g) ΔH = - 113.1 kJ 2N2O (g) 2N2 (g) + O2 (g) ΔH = - 163.2 kJ A. 155.

Of Sr or Ba, the element with the higher first ionization energy is

Water bugs walk on water, some razor blades can float on water, and water forms droplets. Are these examples of viscosity, surface tension, or vapor pressure? A. Viscosity B. Vapor pressure C. Surface tension

Using the equation N2+3H2-->2NH3 how many grams of NH3 is made if 11 grams of N2 are used?

Identify each energy exchange as heat or work. Drag the appropriate items to their respective bins. melted wax

23 Which term identifies a type of organic reaction? (1) deposition (3) esterification (2) distillation (4) sublimation

several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear is white. What process led to to this difference in fur color.

What will be the outcome of putting litmus paper into bleach? a. red paper turns blue, blue paper turns red b. red paper does not change, blue paper turns red c. red paper turns blue, blue paper does not change d.

What makes it possible for ships to float?