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A perfect example would be boiling ice and watch it turn to gas.

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13y ago

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You are a noble gas with a mass no of 19?

The element with a mass number of 19 could be fluorine, which is a halogen and a gas, but not a noble gas.


How can demonstrate that a piece of chalk mass has mass?

Put it on a balance and determine its mass.


What is the atomic mass 20 gas?

The atomic mass of an element is the average mass of an atom of that element. For a gas with an atomic mass of 20, it could be calcium (Ca). Calcium has an atomic number of 20 and an atomic mass of approximately 40.08 grams per mole.


Does gas have definite mass?

Yes, gas has mass. The mass of a gas is determined by the number of gas particles present and the type of gas molecules. The mass of gas can be measured using a balance or by determining the mass of the container before and after the gas is added.


How does breathing demonstrate gases are fluids?

Your breath is a gas


Balanced chemical equations demonstrate?

the law of conservation of mass.


How can you demonstrate that a piece of chalk has mass?

You can demonstrate that a piece of chalk has mass by weighing it on a scale. Place the chalk on the scale and observe the reading, which indicates the gravitational force acting on the chalk due to its mass. A non-zero reading confirms that the chalk has mass.


How could a chemist find out how much mass is given off as gas during a chemical change?

How could a chemist find out how much mass is given off as gas during a chemical reaction


Molecular mass equals 2vapour density?

The molecular mass of a compound is equal to 2 times its vapor density. This relationship is due to the fact that vapor density is defined as the mass of a gas under certain conditions relative to the mass of an equal volume of hydrogen gas, which has a molecular mass of approximately 2.


Why would an experiment not demonstrate the law of conservation of mass?

An experiment may not demonstrate the law of conservation of mass if there are sources of error, such as incomplete data collection or unaccounted-for mass changes (e.g., evaporation, chemical reactions) during the experiment. Additionally, equipment malfunctions or improper experimental design could also lead to inaccurate results that do not align with the law of conservation of mass.


Which system would you use to demonstrate conservation of mass?

A closed system would be used to demonstrate the conservation of mass. In a closed system, no mass enters or exits the system, allowing for the observation of mass being conserved through chemical reactions or physical changes.


What is the mass of 1 mole of gas?

39.95 because that is the molar mass of Argon