Who established using atomic numbers as the basis for organizing the periodic table?

How are light and sound alike? How are they different?

What is the definition of steam

A strong magnet that can be turned on and off is called a electromagnet. True or false?

Which resources MAY be used by autotrophs to make their food? 1. oxygen 2. glucose 3. soil 4. carbon dioxide 5. hydrogen sulfide (A) 1 and 2 (B) 2 and 3 (C) 3 and 4 (D) 4 and 5

Addition of 50. J to a 10.0-g sample of a metal will cause the temperature of a metal to rise from 25ºC to 35ºC. The specific heat of the metal is closest to0.0005 J / (g·ºC) 0.50 J / (g·ºC) 2.5 J / (g·ºC) 4.2 J / (g·ºC)

What is the example to the word camouflage

Given the reaction 2NaOH + H2SO4 = Na2SO4 + 2H2O, what is the total number of grams of NaOH needed to react completely with 196 grams of H2SO4

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