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think of H2Q water ? hydrogen and oxygen
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∙ 13y ago
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Is it true a compound is always in the same physical state as its elements?
Depends what you mean - your question is not clear - but consider :- At STP Oxygen and Hydrogen are two elements in the gaseous physical state BUT their compound Water is in the liquid state. At STP Oxygen is gaseous and Iron is solid BUT their compound is Iron Oxide is solid. So the answer is no.
Which classification of matter are the compounds chemically combined?
A molecule.A molecule consists of one or more atoms chemically combined. If the atoms are not the same ie not two oxygen atoms but two oxygen and a hydrogen atom then the a compound is formed.
Do solids and liquids contain the same elements?
Solid and liquid water do have things that are in common. Both a solid and a liquid are considered matter, just in a different state. Solid and liquids also take up a fixed volume of space.
What is the difference between air and water?
Water is a single chemical compound in its liquid form (H20). Air is a mixture of many elements and compounds in gaseous form and can include the gaseous form of water as one of its components.
How Many Elements in HCl?
HCl is a compound, liquid at normal temps and pressures; called hydrochloric acid. The elements in the compound are hydrogen and chlorine.
Elements and substances can exist in these forms of matter?
Solid, liquid, gaseous and plasma.
How is water derived from two gases?
When two or more elements are combined to make a compound, water, the new compound can have completely new properties(water is a liquid at room temperature ,while hydrogen and oxygen (elements in the water) are both gases at room temperature),or they can have similar properties to their elements
How are elements compounds and mixtures classified?
Elements and compounds are pure substances. Elements are composed of only one kind of atom and compounds are composed of two or more elements that are chemically combined. Mixtures are not pure substances, as they are composed of two or more components that are not chemically combined.
When elements combine chemically to form a compound can there be a change in compositions and properties?
Most of the time there are. There can be changes in room-temperature phase as well, notably water is a liquid with virtually no properties of gaseous oxygen and hydrogen.
Can a liquid substance diffuse in another liquid substance a gaseous in liquid a gaseous in gaseous?
Yes, all of them.
Describe the 3 categories of the periodic table?
Solid, Gaseous, Liquid with Solid Elements having the most.
What is the Elements in compound for water?
Chemical formula for water is H2O. Elements making this compound are hydrogen and oxygen. Water is a colourless odorless liquid.
