What is the mass of an atom that has 4 protons, 5 neutrons, and 4 electrons?

Instructions: Select the correct answer. An electromagnet is a device in which moving electric charges (current) in a coil of wire create a magnet. What's one advantage of using electromagnets in devices? A.

All of the following are examples of electrolytic solutions, except __. A) Ocean water B) Pure water C) Strong hydrochloric acid D) potassium chloride solution

Chloroform was used as an anesthetic for childbirth and surgery during the nineteenth century. Write the molecular formula of chloroform.

A local farmer uses chemical fertilizers in his farm. The runoff from the farm pollutes a river which supplies drinking water in the location. This causes serious health problems among people in the location.

Which is a characteristic of a decomposition reaction? Substance P replaces X in the compound XY. Substance XYZ breaks down into X, Y, and Z. Substance Z burns in the presence of oxygen to form ZO. Substance X combines with Y to form compound XY.

What are three reasons why a population might change?

What is atomic and mass number

You mix 55 ml of 1.00 m silver nitrate with 25 ml of 1.06 m sodium chloride. what mass of silver chloride should you form?

Consider the compounds 4-tert-butylcyclohexanol and 4-tert-butylcyclohexanone. using silica gel plates, which of the two compounds will have the higher rf value when ethyl acetate is the developing solvent?

Which model of election configuration is the most accurate? The quantum mechanical atomic model The Rutherford atomic model The Bohr atomic model O Plum pudding atomic model The quantum gravity atomic model