What are the five indicators of a chemical change

1) A certain amount of chlorine gas was placed inside a cylinder with a movable piston at one end. The initial volume was 3.00 L / rm L and the initial pressure of chlorine was 1.45atm The piston was pushed down to change the volume to 1.

Approximately how much of the world's freshwater supply comes from groundwater? 5% 10% 15% 20%

What kind of molecule is glucose

The number of electrons in outer ring for cesium

What type of compound is fe3n2?

At the same pressure, about 25 times more co2 will dissolve in plasma as o2. why does this occur?

Describe what occurs when a gas is collected by water displacement, including why a table of water vapor pressure values is needed.

The theory of plate tectonics

A sample of sodium reacts completely with 0.568 kg of chlorine, forming 936 g of sodium chloride. What mass of sodium reacted?

When do water molecule forms hydrogen bond with another water molecule which atoms are involved in the interation?