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A given compound usually contains the same relative number of atoms of its various elements true or false?
Today this affirmation is not generally valid.
Which two of Dalton's theory were incorrect?
These affirmations are not valid today:· All atoms of a given element are identical.· A given compound always has the same relative numbers of types of atoms.
How do you count the atoms in a compound?
You would look at the chemical formula. The subscripts tell you how many atoms of an element are in one molecule or formula unit. Examples: H2O has 2 atoms of hydrogen and 1 atom of oxygen. C6H12O6 has 6 atoms of carbon, 12atoms of hydrogen, and 6 atoms of oxygen.
What part Dalton atomic theory was later proved to be incorrect?
Today we know that atoms can be destroyed to nuclear reactions but not by chemical reactions.
What did John Dalton get wrong?
Thse affirmations are not considered valid today:· All atoms of a given element are identical. · A given compound always has the same relative numbers of types of atoms.
How do you know when to solve for a empirical formula?
You should solve for an empirical formula when you are given the percent composition of elements in a compound or when you have the molar mass of the compound but not the molecular formula. The empirical formula provides the simplest whole-number ratio of atoms in a compound.
A given compound usually contains the same relative number of atoms of its various elements true or false?
Today this affirmation is not generally valid.
What is the compound H22 O11?
The given compound does not exist if there are twelve carbon atoms before hydrogen atoms then it will be the formula for sugar.
Which two of Dalton's theory were incorrect?
These affirmations are not valid today:· All atoms of a given element are identical.· A given compound always has the same relative numbers of types of atoms.
Is it necessary to know the formula of a compound in order to calculate its percent composition?
YES.For one to know the percentage composition,the amount of moles of the reacting element must be considered using the compound. •Well you dont really have to know just the formula. You can eaither use the formula if its given or the molar mass if its given. i just recently did a test where i was given either the Molar mass or Formula name and i had to figure out the percent composition. so it depends on the info given.
How do you count the atoms in a compound?
You would look at the chemical formula. The subscripts tell you how many atoms of an element are in one molecule or formula unit. Examples: H2O has 2 atoms of hydrogen and 1 atom of oxygen. C6H12O6 has 6 atoms of carbon, 12atoms of hydrogen, and 6 atoms of oxygen.
What part Dalton atomic theory was later proved to be incorrect?
Today we know that atoms can be destroyed to nuclear reactions but not by chemical reactions.
The subscripts of a compound indicate?
Subscripts after an element symbol indicate the number of atoms of that element in the compound, or (for more complicated compounds) in the particular radical in that part of the formula. For example, N with a subscript of 2 means 2 nitrogen atoms. If you wanted to indicate multiple numbers of a given radical or compound, that is indicated by a number on the line, rather than a subscript, and it comes before not after.
What information is given by the formula of an ionic compound?
For an ionic compound, the name of the positive ion comes first, followed by the name of the negative ion. It also tells the ratio of the atoms and tells what atoms make up the compound.they describe the type and number of atoms in a molecule of the compound
What did John Dalton get wrong?
Thse affirmations are not considered valid today:· All atoms of a given element are identical. · A given compound always has the same relative numbers of types of atoms.
Where does a subscript that indicates the number of atoms appear?
A subscript that indicates the number of atoms typically appears to the lower right of the chemical symbol in a chemical formula. It represents the number of atoms of that element present in the compound.
How do you find formula weight of a compound?
You start with the mass of the compound. This you divide by the total molecular mass of the compound (the atomic mass of 1 molecule) and you multiply this by the amount of atoms 1 molecule consists of.
