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You use parentheses to represent that a polyatomic ion is used more than once as a whole.
For example Ba(NO2)2. It is NO2 that is used twice because Ba has a 2+ charge and NO2 has a -1 charge. So you need 2 NO2 to make the formula equal 0. So you use the parentheses to represent you are using 2 NO2
What else can I help you with?
What happens when you mix two polyatomic compounds in one formula?
What happens when you mix two polyatomic Compounds?For example:1. Ammonium + Carbonate = (NH4)2(CO3)This is corrector2. Ammonium + Carbonate = NH4 2CO3This is not correctThe general rule is that we would only put brackets around a poly atomic if we have more than one of them in our compound.So (NH4)2CO3 would be how it should've been shown as.Although the first example is still correct and usable as an answer.
What is the charge on the hydronium ion?
The hydronium ions have a +1 charge - the formula is H3O+
How do you convert a chromate ion to dichromate?
(Cr2O7)2- + H2O -> CrO4- + 2H+ Chromate is yellow and Dichromate is orange. If the solution is yellow, then by LeChatlier's Principle, if an acid is added, then the Dichromate will form predominately.
What happens to the boiling point of benzene when a solute is added?
if you put an ionic compound in a polar substance it will raise the boiling point because the resulting ion dipole bonds will be stronger than the previously existing dipole dipole bonds
Which best described spectator ions?
A spectator ion is an ion which does not participate in a reaction. Zn(s) + H2SO4 (aq) -----> ZnSO4 (aq) + H2 (g) That is the equation. The Zn goes from a solid to aqeous therefore it reacted. The Hydrogen in H2SO4 went from (aq) to (g) therefore it reacted. The SO4 however went from (aq) to (aq) and therefore didn't react and is therefore a spectator ion.
how should you indicate that there are multiple polyatomic ions in a chemical formula?
put parentheses around the atoms in the ion and then add a subscript - apex
How should more than one polyatomic ion be indicated in a chemical formula?
One reason is that the composition of a polyatomic ion is fixed, just as that of a compound is fixed. If more than one polyatomic ion is present in an ionic compound, the use of parentheses allows a subscript to be used after the right parenthesis to designate the number of ions just as such subscript is used to designate the number of atoms in a compound.
Where do you put the parentheses to make 2 plus -34 equals -10?
It's 2+(-34)=-10 So put the parentheses around the -34.
Can you put parentheses in parentheses?
yes
How are formulas written for ionic compounds with polyatomic compounds given their names?
You use the criss cross method to swith the charge of the element with the charge of the whole ion If the charge of the element is more than one then put the ion in parenthesis and then put the charge outside
What are examples of polyatomic ions?
There are a zillion. Simply put, a polyatomic ion is an ion with two or more atoms in it. (Polyatomic is "multi" atom.) The number "zillion" isn't specific, of course, but we might be able to use it here in the science section to make a point. The phosphate group, PO4-2, and the hydroxyl group, OH-, are just two of many, many polyatomic ions. A link can be found below to the Wikipedia article on polyatomic ions. You'll find a looong list of them there. Why not check it out?
Where would you put your parentheses in 17-8-5 equals 14?
around the 8 and the 5
How can you write comments or disable a section of code by commenting it out?
I think you put parentheses around the code you want to hide.
How do you know where to put parentheses in a math problem?
The normal order of evaluating operations is PEMDAS = Paretheses Exponents Multiplication Division Addition Subtraction. If any of these operations is to be carried out in a different order, you put parentheses around the operator and the numbers on either side of it.
Do you put a period inside or outside a parentheses?
put it outside.
What is changing the order of operations with parentheses?
Parentheses are the following symbols: ( & ). These are parentheses. These help to do equations for example : 3+2x3=9 u are to put the parentheses or the backetts or the {} to help solve the equation so this is the way to put them in : 3+(2x3)=9. Hope This Helps!
Do you put parentheses with a characters thoughts?
You don't
