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Answered 2016-12-12 11:42:15

False. Hydrogen and oxygen - both gases - combine to form water - a liquid.

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It is a physical property because the element/compound will change without involving a change in chemical composition.Physical


When an element forms a compound, a chemical change occurs involving exchange of electrons between the atoms of the elements.


A physical change doesn't involve chemical reactions, change of the molecule structure.The chemical reactivity is about the ability of an element or compound to realize chemical reactions.


The propertys of the elements change. For example:both chlorine and sodium are highly reactive, but whenthey combine the form a compound. this compound iswhich alot of people eat everyday.


to make one element a different element, all you need to do is have a different number of protons



A chemical property is one that, when changed, changes the chemical composition of the compound. A physical property only involves a change in the physical state of the compound.


it is a chemical change so that is why it becomes a compound from a element


compound mixture element or solution



Physical properties of an element are those in which there is no change in its state. For example, the color and density of an element are physical properties. If an element is flammable, it goes through a reaction and burns, and there is a change in state. When there is a reaction that results in a change of state, Flammability is a chemical property.


an element is a single type of atom in abundance (as in pure copper wire, etc.) therefore, an element cannot change. a compound can be broken down into two elements when another element or compound reacts with the former. im pretty sure its called a reaction.


Yes, it is a characteristic property.The melting point property of an element doesn't change even if the amount of that element changes.


The basic property of ice is the chemical compound H2O. The chemical compound does not change while the ice melts, nor when the water evaporates. The chemical formula does not change. Therefore, it is a physical change of the compound, not a chemical change.


Water boiling is a phase change, which is a kind of physical change.



A chemical change can be caused by a reaction. It an element or compound reacts with another, it is known as a chemical change.


It is a property that Property of a compound that can change without involving a change in chemical composition; examples are the melting point and boiling point.


Its a chemical change, and the simplest is when two atoms combine to from a compound. When there is a single oxygen atom, it is called ozone, then two combine in an ionic bond, they are an oxygen molecule.


Melting point: the temperature at which an element (compound, material) change the phase from solid to liquid.


All the chemical and physical properties are modified.


Nitrogen is an element so it will not change into anything else when it is used. However, it might combine with other elements to form some kind of compound or substance. If you wanted to separate the Nitrogen from a compound you would have to come up with a chemical process to do this. But in princple you can always do this. So yes it can be recycled.


Usually you change the ending of the second element in the compound to -ideExample: NaCl --> sodium chloride


It depends upon the nature of element generally compounds may be decomposed to their elements but it is a very difficult task.


A physical property of an element refers to an observable property that does not change the composition of the element. Five examples of physical properties are: melting point, odor, boiling point, color and density.



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