The secret substance is: Heat energy.
CaO, calcium oxide
Are u guys from BCIS?
it should be lime!!!!! Not heat energy
It must be LIME!
I think it's Lime
it shouldn't be heat energy!!!!!!!!! I
OOO ITS DING
Hi
An element - substance - NOT a mixture.
an element.
A substance that cannot be broken down is a pure substance
Iron is found as a compound, iron oxide. Iron oxide is a brown substance found in certain hillsides, mountains, cliff faces and rocks
A chemical element is a substance with only one type of atom in it (e.g. only carbon atoms). The known chemical elements are arranged on the Periodic Table of the Elements. Every element has it's own chemical symbol, which is used as a scientific shorthand for quick elemental notation (e.g. Carbon = C, Promethium = Pm).
lead
In 1808 it was shown that this substance was not an element. It starts with L and ends in e, so it cant be Barium.
No elements are found within other elements, which is how we define an element; As a substance consisting of one type of atom.
Boron has been used in China since 300AD. But it was discovered as an element in 1824 by Jöns Jakob Berzelius
An element - substance - NOT a mixture.
Solid iodine can be found as pure crystals.
Selenium is a chemical element. It can be said to be a pure substance; there is nothing else found in it.
1808 By del rio
it was found in 1808 and it is not found free in nature
1808
It was discovered by Sir Humphrey Davy in 1808. Calcium was known and used in various compounds from as early as Roman times, but the element itself was not actually isolated until 1808.
The most abundant element in the universe is Hydrogen, making up about 75% of all matter.