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The sum of the positive charge must equal to the sum of negative charge
Ex. sodium chloride
sodium=Na+ chloride=Cl- Formula=NaCl
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What rule do you use to identify substance as elements and compounds?
By physical and chemical properties
What is a rule for determining the mass?
Just adapt the formula for density to find the mass of an object. After adapting it, it should be like this: Volume*Density=Mass
What is N2O7?
The general rule for determining the number of total atoms in a molecular formula is to add all the explicit subscripts shown plus 1 for each atom shown without an explicit subscript. In this formula there are no such atoms, and the total is 2 + 7 or 9 atoms.
What is the rule for determining the mass of an element?
The atomic number.
Is lactose ionic or covalent compound?
It is covalent because the bonds are polarized.
Why mixtures don't have chemical formula while compound have chemical formula?
Because as a rule only a chemical compound has a chemical formula; a mixture contain two or many componds and each compound has a different chemical formula.
What rule do you use to identify substance as elements and compounds?
By physical and chemical properties
The octect rule states that in chemical compounds atoms tend to have?
the electron configuration of a noble gas
The Octet Rule states that many chemical compounds tend to form bounds. True or False?
True.
What is a rule for determining the mass?
Just adapt the formula for density to find the mass of an object. After adapting it, it should be like this: Volume*Density=Mass
What is the rule for determining mass?
Just adapt the formula for density to find the mass of an object. After adapting it, it should be like this: Volume*Density=Mass
What is N2O7?
The general rule for determining the number of total atoms in a molecular formula is to add all the explicit subscripts shown plus 1 for each atom shown without an explicit subscript. In this formula there are no such atoms, and the total is 2 + 7 or 9 atoms.
The birthday rule applies to determining what?
Fractions
Which type of compounds satisfy the rule of cnh2n 6?
The hydrocarbons having two triple bonds in one molecule follow the formula CnH2n-6
What is the rule for determining the mass of an element?
The atomic number.
What is the rule of thumb in determining a delivery date?
The rule of thumb in determining a delivery date is to count the number of days allotted pursuant to the applicable code section or rule, before adding the applicable extension of time.
Formula and example of cowling's rule?
== Cowling rule is another method for determining the dosage of a drug to prescribed to a child. For this rule, the formulad== D(a+1)------24gives the child's dosage d, Where D is the adult dosage and a is the age of the child in years. If the adult dosage of a drug is 600 milligrams and a doctor uses this formula to determine that a child's dosage is 200 milligram, then how old is the child? =
