Why should the conductivity of tap water be higher than that of di water?

A 50-gram sample of a radioactive nuclide is left to decay for 10 hours. At the end of 10 hours, only 25 grams of the sample is left. What is the half-life of the nuclide sample?

A balloon filled with helium has a volume of 6.3 L. What is the mass, in grams, of helium in the balloon?

White light is made up of A. only the types of visible light with very long wavelengths. B. ultraviolet light and gamma rays. C. a spectrum of many different colors of light. D. infrared light and radio waves.

What is the specific heat of titanium in j / (g⋅∘c) if it takes 89.7 j to raise the temperature of a 33.0 g block by 5.20 ∘c?

For the following isotopes that have missing information, fill in the missing information to complete the notation: 34 14X

The equilibrium constant for the production of carbon dioxide from carbon monoxide and oxygen is kc=2*1011 this means that the reaction mixture at equilibrium is likely to consist of

Arrange these compounds in order of increasing standard molar entropy at 25°C: C3H8 (g), C2H4 (g), ZnS (s), and H2O (l).

A gas has a temperature of 14 degrees C and volume of 4.5 liters. If the temperature is raised to 29 degrees C and the pressure is not changed, what is the new volume of the gas? .

What groups of elements do not have a charge and why

How many grams of Br are in 2.0 moles of CaBr2?