What is a dense positively charged mass in the center of an atom

Which diagram shows a voltaic cell?

Where do the materials that we use to make plastic bags, crayons and polyester (for clothes) come from?

What is ammonification?

The type of chemical bond that forms when electrons from the outermost orbitals of atoms are shared among those atoms is the

If the molten nacl is replace dby an 1.0m aqueous sodium chloride solution how much sodium can be collected if a curret of 1.0 a is applied for 1.0 hour?

The mass flow rate of gasoline leaving a refinery is 1610 kg/min. The specific gravity of a gasoline is 0.700. A retail gasoline pump is able to fill a 20.0 gallon automobile tank in 1.80 minutes.

Calculate the solubility of cux (ksp=[cu2+][x2-]=1.27*10-36) in a solution that is 0.190 m in nacn.

An atom has seven valance electrons which element could have this type of atom

How is the ocean important to human survival? restate the question

A sample of pure lithium contains 7.99% lithium by mass. What is the % lithium by mass in a sample of pure lithium nitrate that has twice the mass of the first sample?