How many moles of salt are in 13.8g of sodium chloride

A particular atom has a total proton charge of 1.12 x 10 (-18) c. what element is it?

The gas in a 600. mL balloon has a pressure of 1.20 atm. If the temperature remains constant, what will be the pressure of the gas in the balloon when it is compressed to 400. mL?

Where would you find synthetic elements on the periodic table

What is the most likely evidence of an energy transformation taking place when a skater glides over ice? A. Skating blades become cold as kinetic energy is transformed into thermal energy B.

A spider and tick evolved from the same ancestor, the fact that they evolved into different organisms, how can that be explained by?

How is the mole similar to a dozen?

What element with the highest electronegativity value? Cesium calcium helium fluorine

How many neutrons and electrons are in Oxygen⁻¹⁷ isotope?

What is science all about?

What type of change is a substance that changes form but remains the same?