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The numbers preceding the element or compound in a chemical equation are coefficients.
For example, 2Mg + 3Al means that there are two magnesium atoms (or two moles of magnesium) and three aluminum atoms (or three moles of aluminum). Most importantly, the 2 and 3 reflect the ratio of magnesium to aluminum in the equation.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoThe number in front of each element is referred to as the atomic number, which states the number of protons in a single atom of the relative element.
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Chemical formulas represent the number and element of each type of atom in?
Chemical formulas represent the number and element of each type of atom in a molecule.
What is the number of sulfur atoms in a molecule of sulfurous acid?
The elements in a compound are indicated by the subscript numbers following each element that has more than one atom in the compound. You can tell by looking at the subscript numbers that a single molecule of sulphurous acid, H2SO3, has two atoms of hydrogen, one of sulphur, and three of oxygen.
How do isoptopes of an element differ from each other?
Isotopes of an element have different numbers of neutrons.
How many atoms of each element are in each molecule of ammonia?
NH3; One atom of nitrogen and three atoms of hydrogen.
How many atoms of each element in CO?
Each molecule of CO contains one atom of carbon and one of oxygen.
What does percent composition tell you about a molecule?
Percentage composition= (mass of the element/mass of the molecule)*100 The fraction of the molecule's mass that comes from the element's mass
What is a combination of symbols and numbers that describes a molecule?
A combination of chemical symbols that show what elements make up a compound and the number of atoms of each element in the smallest unit of the compound is a chemical formula.
What does the subscript indicate in the chemical formula?
The number of atoms of that element in the molecule
How many of each kind of element are there in a molecule of carbon dioxide?
1 Carbon atom and 2 Oxygen atoms. The formula is CO2, which means that there are one atom of carbon and two atoms of oxygen in one molecule. The subscripts tell you the numbers of each element. No number is understood to be one.
How many atoms of each kind of element are there in a molecule of carbon dioxide?
1 Carbon atom and 2 Oxygen atoms. The formula is CO2, which means that there are one atom of carbon and two atoms of oxygen in one molecule. The subscripts tell you the numbers of each element. No number is understood to be one.
Chemical formulas represent the number and element of each type of atom in?
Chemical formulas represent the number and element of each type of atom in a molecule.
How many atom of each element are in each molecule?
Water molecule (H2O) has 2 hydrogen atoms and 1 oxygen atom.
Which mineral is in hemoglobin?
Iron. This element is found at the center of each hemoglobin molecule.
What is a formula of a compound?
The chemical formula of a compound is a list of the chemical symbols of each element in a molecule of the compound, denoted with numbers representing how many atoms of each element are in one molecule of the compound. Example is H2O is a water molecule with 2 Hydrogen atoms, and 1 Oxygen atom.
What is the number of sulfur atoms in a molecule of sulfurous acid?
The elements in a compound are indicated by the subscript numbers following each element that has more than one atom in the compound. You can tell by looking at the subscript numbers that a single molecule of sulphurous acid, H2SO3, has two atoms of hydrogen, one of sulphur, and three of oxygen.
How do isoptopes of an element differ from each other?
Isotopes of an element have different numbers of neutrons.
What does it means when a compounds chemical formula does not include any numbers?
It means that you have one atom of each element in the formula
