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What substance in 1808 was not an element?
In 1808, scientists thought that substances like oxygen and hydrogen were elements, but they later discovered that these were compounds made up of different elements. One substance that was thought to be an element in 1808, but is actually a compound, is water (H2O).
What is a sample of matter either a single element or a single compound?
a pure substance! ;)
What is different between element and compound?
An element is a pure substance made up of only one type of atom, such as oxygen or gold. A compound is a substance made up of two or more different elements chemically bonded together, like water (H2O) or salt (NaCl).
Is water an element or a compond?
Water is a compound composed of two elements, hydrogen and oxygen, bonded together chemically to form a single substance with the chemical formula H2O.
What is the balanced equation for ammonium hydroxide added to hydrobromic acid?
The equation is NH4OH + HBr -> NH4Br + H2O.
Is H2O a pure elemental substance?
No, H2O is a molecular compound because it contains two types of atoms. A pure element has only the atom by itself, or combined with another atom of itself, such as H2, Cl2, I2.
What substance in 1808 was not an element?
In 1808, scientists thought that substances like oxygen and hydrogen were elements, but they later discovered that these were compounds made up of different elements. One substance that was thought to be an element in 1808, but is actually a compound, is water (H2O).
What is the substance in helium?
Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, and inert gas. Helium is the second lightest and second most abundant element in the observable universe.
What is a sample of matter either a single element or a single compound?
a pure substance! ;)
What element is H2O?
Water, but it is a compound, not an element.
What is the difference between a compound and an element?
none
Difference between and compound and an element?
An element is a pure substance made up of only one type of atom, such as oxygen or gold. A compound is a substance made up of two or more different elements chemically bonded together, such as water (H2O) or sodium chloride (NaCl).
What specifies the actual number of atoms of each element in one molecule of the substance?
The number that comes after it's abbreviation. H2O- two hydrogen, one oxygen
Is a element a substance made up of two kinds of matter?
No, an element is only one substance. For example for silver has the symbol Ag. this tells us that silver is an element it consists only of silver it does not contain any other substance. Water has the symbol H2O this tells us that water is made up of oxygen and hydrogen it consists of more than one substance. Silver is an element, water is a compound It is not correct to say a substance is made up of two kinds of matter. Kinds of matter means a gas a liquid or a solid
Is H2O a element compound or mixture?
H2O is a compound composed of two elements, hydrogen and oxygen. It is not an element itself.
Difference between a compound and a element?
An element is a pure substance that is made up of only one type of atom, such as oxygen or gold, while a compound is a substance made up of two or more different elements chemically bonded together, such as water (H2O) or sodium chloride (NaCl). Elements cannot be broken down into simpler substances, while compounds can be broken down into their constituent elements through chemical reactions.
What guards the element of water?
H2o
