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What happens when a subscript is on the outside of the parentheses?
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What is the property where you multiply the number on the outside of the parentheses by everything on the inside called?
The distributive property.
What property is it to multiply a sum by a number multiply each addend of the sum by the number outside the parentheses?
Distributive Property
Would you Explain the distributive property?
The distributive property is a property for multiplying with parentheses. It states that a(b+c)=ab+ac. The means that 3(x+2)=3x+6, for example. Basically, the distributive property says you must multiply everything within the parentheses by the number outside the parentheses.
After arranging in descending order what is the first step in factoring polynomials?
Determine the GCF .If it is 1 then continue with the next step but if it is a number such as three then remove that number and divide each monomial by that number and put the polynomial within a set of parentheses with the GCF on the outside of the parentheses
Parentheses two times nine parentheses times negative eight minutes four parentheses four plus hundred plus eight?
parentheses two times nine parentheses times negative eight minutes four parentheses four plus hundred plus eight
What is the percentage by mass of nitrogen in ammonium phosphate NH43PO4. Remember a subscript outside parentheses is multiplied by every subscript inside the parentheses?
28.2%
How do you indicate the number of molecules in a substance?
The subscript outside the parentheses: (H2SO4)2
When a polyatomic ion is in parentheses and there is a subscript on the outside of it is the polyatomic ion multiplied or add?
Multiplied.
How many oxygen atoms are in aluminum chromate?
The formula for aluminum chromate is Al2(CrO4)3, so there are 12 oxygen atoms. Multiply the number of oxygen atoms inside the parentheses times the subscript outside the parentheses.
How many oxygen atoms are there in the formula for aluminum nitrate?
The formula for aluminum nitrate is Al(NO3)3, so there are 9 oxygen atoms. Multiply the number of oxygen atoms inside the parentheses times the subscript outside the parentheses.
What is the purpose of a subscript in a chemical formula?
The subscript tells you how many atoms of a certain element are in the representative particle of that substance. For example, H2O means 2 hydrogens and 1 oxygen. (The absence of a subscript means there's just 1.) The subscript only applies to the element immediately before it, unless the subscript occurs outside a set of parentheses, in which case it applies to everything inside the parentheses.
How many atoms are in C8H16?
24: The answer to the number of atoms present in a formula that does not include parentheses is always the sum of all the subscript numbers in the formula plus one for each type of atom shown without a subscript. If the formula does contain parentheses, all the subscript numbers inside the parentheses should be multiplied by the subscript number after the closing parenthesis itself before the sum of all subscripts is taken.
How many carbon atoms in cobalt acetate?
The formula for cobalt acetate is Co(C2H3O2)2. According to the formula, there are four carbon atoms in each formula unit. When an ion is in parentheses, you multiply the subscripts inside the parentheses times the subscript outside the parentheses to find the total number of atoms of an element.
What does the number inside the parentheses in a chemical formula tell you?
Taking an example. 6H3PO4 This means that there are 6 molecules ( 6 molar ratios) of H3PO4 The '3' is the number of hydrogen (H) atoms in the molecule The '4 ' is the number of oxygen (O) atoms in the molecule. NB The '3' & '4' should acutally be written as subscript. Another example Mg(OH)2 The '2' outside the brackets indictates that there are '2' hydroxide (-OH) ions in the molecule. Finally, CH3 (CH2)14COOH The '2' & '3' as indicated above. however, the ''14' indicates that there are '14' CH2 (ethylene) in the chain . It is written in this form in order not to write a long chain of 'CH2.
How many atoms does a molecule contain?
It depends on the molecule! If you have a molecular formula for a molecule and the formula does not contain parentheses, you can find the number of atoms in it by adding all the subscripts, treating no subscript as the number 1. If the formula does contain parentheses, first multiply any subscript within the parentheses by the subscript at the end of the parentheses, then add these modified numbers to those of any other atoms in the formula that are not in parentheses.
How many atoms in the equation CH4 plus 2 O2?
The number of atoms of a particular element in an equation is obtained by multiplying the subscript if any immediately after the symbol for the atom by the coefficient if any of the molecule containing the atom. If a formula includes parentheses, the subscript after the parentheses is also multiplied by the subscript if any of each atomic symbol within the parentheses. If there is no explicit subscript or coefficient, the number 1 is to be assumed. Applying these rules shows that the given equation contains one carbon atom, four hydrogen atoms, and four oxygen atoms, for a total of nine atoms altogether.
What is the small number called to the right of the symbol molecule and the chemical equation?
It's called a subscript, and in the formula for a substance, it tells you how many representative particles you have of that substance. If there is no subscript, it is understood to be 1, which means you only have 1 representative particle of that substance. Examples: H2O, or water, means you have 2 hydrogen atoms and 1 oxygen atom. Ca(NO3)2, or calcium nitrate, means you have 1 calcium atom, and 2 nitrate polyatomics (comprised of a total of 2 nitrogens and 6 oxygens.) A subscript outside a set of parentheses distributes to everything in the parentheses.
