False. Water is a molecule made of 2 parts hydrogen one part oxygen. NOT AN ELEMENT.
I suppose that would be a summary of a change which is not chemical. Perhaps it would be something like ice --> water
A type of Chemical weathering that happens when water interacts with minerals.
A molecular formula contains the atomic composition by element and their quantities. For example H2O is the molecular formula for water. The formula indicates that there are two atoms of hydrogen (H) and one oxygen (O) in each water molecule. Through the molecular formula molar mass can further be derived. In the case of water is 18-grams per mole.
A compound is formed when two or more other substances are combined and a chemical change takes place. Pure water would be an example of a compound.
It means a chemical/ substance, that cannot be dissolved in a liquid. An example would be starch and water, as starch is insolute when added to water.
false
For example, water reacts with zinc, releasing hydrogen, an element.
No, it's not, since water is not an element, it's a substance, it consists of 2 hydrogen atoms and one oxygen atom, which are elements.
Water is a chemical compound not a chemical element.
For example, water reacts with zinc, releasing hydrogen, an element.
I'd say no. Melting just changes the physical properties. Example: A rubber ball. If you melt a rubber ball it will still be rubber, just in a different form.
FALSE
Everything tangible is at least one chemical; this includes water. Water is not an element, because it can be decomposed into oxygen and hydrogen by chemical means.
Iron (Fe) is a chemical element, water is a chemical compound (H2O).
false - it's a physical change. The sugar remains sugar only in solution.
The chemical composition of water is H2O.
No it is a compound