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What does the formula of a substance tell you?
The formula of a substance(element or compound) tells us the number of molecules in the in the substance(element or compound).
What does the atomic symbol tell us about an element?
They tell you how many molecules of two or more compounds combine to form other molecules. The equation can, but will not always, tell you if the reaction requires heat or gives off heat (endothermic/exothermic), whether or not a catalyst is required.
When changing a subscript in a correctly written chemical formula it will change what?
Changing the subscript in a chemical formula changes the number of atoms to which the particular subscript belongs. Doing this changes the formula completely, making it representative of another substance completely.
what is a chemical formulae?
An identification of the atoms is a molecule (APEX)
What does a subscript tell us about an element in a compound?
In a molecular formula, the subscript tells us the number of atoms of the element that are present in one molecule of the compound. For instance,H2O tells us that there are two hydrogen and one oxygen atom per molecule of water. As for ionic compounds, it tells us the number of atoms present in one formula unit of the compound.
What does a subscript tell us in a binary nonmetal compound?
In a binary compound, the subscript for a compound's formula would tell us how much of a certain atom there is.
What does the formula of a substance tell you?
The formula of a substance(element or compound) tells us the number of molecules in the in the substance(element or compound).
What does the atomic symbol tell us about an element?
They tell you how many molecules of two or more compounds combine to form other molecules. The equation can, but will not always, tell you if the reaction requires heat or gives off heat (endothermic/exothermic), whether or not a catalyst is required.
What two things does a chemical formula tell us about a compound?
the actual number of atoms in a molecule
Is zinc sulfate an element or a compound?
Zinc sulphate is a COMPOUND. It is made up of three elements, they are Zinc, Sulphur and Oxygen. The chemical formula is 'ZnSO4'. This tells us that there is one atom of zinc, one atom of sulphur and 4 atoms of oxygen. In normal ambient conditions it is a white solid.
When changing a subscript in a correctly written chemical formula it will change what?
Changing the subscript in a chemical formula changes the number of atoms to which the particular subscript belongs. Doing this changes the formula completely, making it representative of another substance completely.
What is importance of naming chemical formula?
A compound is a substance made up of a definite proportion of two or more elements. A chemical formula tells us the number of atoms of each element in a compound. It contains the symbols of the atoms of the elements present in the compound as well as how many there are for each element in the form of subscripts
what is a chemical formulae?
An identification of the atoms is a molecule (APEX)
What does a subscript tell us about an element in a compound?
In a molecular formula, the subscript tells us the number of atoms of the element that are present in one molecule of the compound. For instance,H2O tells us that there are two hydrogen and one oxygen atom per molecule of water. As for ionic compounds, it tells us the number of atoms present in one formula unit of the compound.
What is the chemical symbol showing the elements in a compound?
The formula contains the chemical symbols and tells us what the elements are. As an example Calcium Carbonate is CaCO3 and shows that Calcium, Carbon and Oxygen are present.
What does a chemical formula of a substance tell us?
It tells what elements are present in a molecule and how many atoms of each element are present.
What are similarities between molecular formula and empirical formula of a compound?
Both formula helps us to know what types of molecules are involved in the compound
