When is a hypothesis useful in science?

All elements can be classified as metals, metalloids, or?

An ion of which element has a larger radius than an atom of the same element?

Describe the number of solutions for the equation. 5 (x-9) = 5x A. No solution B. One solution C. Infinite solutions Is the answer B?

The student's experiment most likely demonstrates how ... A. earthquakes occur along a fault B. new crusts move at midocean ridges C. tectonic movements cause hotspot volcanism D. mountains are created along cracks in Earth plates

A solution of hcl in water conducts electricity, but a solution of hcl in chloroform, chcl3, does not. what does this observation tell you about how hcl exists in water and how it exists in chloroform?

How many moles of Mgs203 are in 245g of the compound

A student was trying to obtain lithium by electrolysis of aqueous lithium chloride. Was he successful?

A Gouy balance is used to determine the magnetic susceptibility of a substance. A strong electromagnet is placed next to the sample, which is on a balance.

Is the bonds that cause gaseous Cl2 to become liquid when cooled intramolecular or intermolecular

Describe an example of deposition