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What does the number mean at the beginning of a chemical equasion eg 3Al2O3?
Wiki User
∙ 12y ago
The amounts of the chemical there is preasent. e.g. 3Al2O3 = 3 particles of alaminium oxide.
alaminium oxide = Al2O3
Wiki User
∙ 12y ago
Wiki User
∙ 13y agothree oxygen atoms
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What is the chemical number of the mineral aluminum?
The atomic number (not chemical number) of aluminium (not mineral Al) is 13.
What is the atomic number of nobelium?
Nobelium, with the chemical symbol No, is the chemical element with the atomic number 102.
What is the atomic number of protactinium?
Protactinium, with the chemical symbol Pa, is the chemical element with the atomic number 91.
What is the atomic number of actinium?
Actinium, with the chemical symbol Ac, is the chemical element with the atomic number 89.
What is the atomic number of barium?
Barium, with the chemical symbol Ba, is the chemical element with the atomic number 56.
Is the chemical equasion NiS plus O2 equals NiO plus SO2 balanced?
No. Count the number of Os on the two sides. note: the "Os" are oxygen and you need the same number of each element (each symbol in that equation).
Half of a number is ten more than triple the number What is the number?
Use the equasion: 1/2x = 3x + 10 to get the answer of negative 4.
What is an variable?
A variable is a value that is not always the same number. In alegebra, it is represented as a letter. In the equasion Y=4X+5, 'Y' and 'X' are both variables.
What is ten times the reciprocal of a number equals 5 times the reciprocal of 9?
The equasion would be 10x 1/j = 5x1/9 (if j equals some number) so the answer would be j=18.
Does the number line have a beginning?
No. However, it does have to have a beginning number. beside the beginning number, on the actual line, you would put an arrow on the end of it, because numbers are infinite in both directions.
What is the chemical number of the mineral aluminum?
The atomic number (not chemical number) of aluminium (not mineral Al) is 13.
The number of a known compound?
The number of a chemical compound is given after the rules of American Chemical Society (CA number).
What is the atomic number of americium?
Americium, with the chemical symbol Am, is the chemical element with the atomic number 95.
What is the atomic number of nobelium?
Nobelium, with the chemical symbol No, is the chemical element with the atomic number 102.
A number placed in front of a chemical formula in a chemical equation is called?
In a chemical Equation ,The reactants are on the left side of a chemical equation and the products are on the right side.The number in front of a chemical formula in a chemical equation is called atoms. They should be a balancing number on both the sides.
How does the computer know what symbol you are looking at?
The mathematical equasion that the computer is employing is one that makes any number you chose a multiple of 9. If you are to look at the screen when it tells you to look at the symbol that matches your number, you will realize that 9,18,27,36,45,54,63,72,81,90,99, etc will all be the same symbol. No matter what number you start off with, It will always be one of these.
How many protons do you have?
The number of protons is depending on to atomic number of a chemical element. Each chemical element has a specific number of protons.
