What type of reaction is Ca+HCl, CaCl+H2

Calculate the wavelength of radiation with a frequency of 8.0 x 10^14 Hz.

I dont know the steps to percent yield homework

The maximum allowable concentration of lead in drinking water is 9.0 ppb. (a) Calculate the molarity of lead in a 9.0-ppb solution.

As we drive an automobile, we dont't think about the chemical consumed and produced. Prepare a list of the principal chemicals consumed and produced during the operation of an automobile.

What is the atomic number of the atoms that make up carbon (C) ? A. 2 B. 6 C. 14 D. 12.01

How can a mixture of nails and sawdust be most efficiently separated into its component parts? A:By cooling it B:By filtering it C: By using a magnet D:By using a catalyst

A 10.0 L balloon contains helium gas at a pressure of 655 mmHg. What is the new pressure, in mm Hg, of the helium gas if the volume is 20.0 L and if there is no change in temperature or quantity? 6550 mmHg 1000 mm Hg 1310 mmHg 300 mm Hg

Restate Newtons first law in terms of acceleration

Electrolysis of 10.0 g of a binary metal chloride deposits 6.207 g of the pure metal. what is the metal?

Which pair of elements are the most different