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What does the small number after the O represent in the chemical equation?
Wiki User
∙ 9y ago
I guess you mean the number "2" in O2. It is the valency of oxygen which means oxygen can have two single bond (hydrogens) with two other elements or a single double bond with an element. A good example methane-CH4, here single carbon atom paired with four hydrogens with four single bonds.
Wiki User
∙ 9y ago
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A capital letter or a combination of a capital letter and a small letter that is used to represent an element is called?
Chemical Symbol
What cant be changed when balancing a chemical equation?
when balancing a chemical equation you can not change the subsripts- the small numbers after the element-.
What does MnO2 mean in a chemical equation?
It means you have some manganese(IV) oxide. This compound most often shows up in chemical equations as a catalyst. It is most popularly used as a catalyst in the decomposition of hydrogen peroxide (H2O2.) A catalyst speeds up a chemical reaction by lowering the reaction's activation energy. In the equation for a chemical reaction, the catalyst is written in superscript-small symbols above the "yield" arrow.
Explain how a balanced equation demonstrates the law of mass?
A balanced equation specifies the same total number(s) of each type of atom present in both the reactants (left side of the equation) and the products (right side of the equation.) The average mass of each type of atom is constant in most circumstances*, so that the same numbers of the same types of atoms will constitute the same mass on each side of the equation, demonstrating the law of conservation of mass. __________________________________ *When only a very small number of atoms are considered, the mass may vary due to the existence of isotopes. However, even then, the isotopic composition of the actual atoms involved in the reaction is not changed by chemical reaction, so that the mass balance still is preserved.
Which letter represent a chemical element on the periodic table?
There are numerous individual letters that represent elements. For instance, B is Boron, C is Carbon, H is Hydrogen, I is Iodine, K is Potasium, N is Nitrogen, O is Oxygen, P is Phosphorus, S is Sulfur, U is Uranium, V is Vanadium, W is Tungsten, and Y is Yttrium.
What does the small number 2 mean in a chemical equation?
This is the number of atoms of a given element.
What is a the small whole number that appears in front of a formula in a chemical equation?
It is the coefficient.
The small number used to represent the number of ions of a given element in a chemical formula?
subscript
What is the definition of An proposed answer to a problem is called if it can possibly be within a small distance of the actual answer?
Reasonable solution or Reasonable answer
A small number of people used to represent a entire population?
a sample
What is the small triangle above the horizontal arrow in a chemical equation?
It means heat was supplied to make the reaction occur.
A capital letter or a combination of a capital letter and a small letter that is used to represent an element is called?
Chemical Symbol
A small number of people used to represent an entire population is called a?
Sample
What does photosdynthesis do?
Photosynthesis is the process of taking sunlight energy and converting it into chemical energy. Equation in words: carbon dioxide + water + energy -> glucose + oxygen Equation in symbols: 6CO2 (small 2) + 6H20 (small 2) + energy -> C6H12O6 (small 6, 12, 6) + 6O2 (small 2)
What number or numbers does a few represent?
A few is the number 3 usually. A couple is the number 2.
What cant be changed when balancing a chemical equation?
when balancing a chemical equation you can not change the subsripts- the small numbers after the element-.
A small number of people that are used to represent a much larger population?
A representative sample.
