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Two hydroxide ions would best be written as 2 OH-1 in an ionic equation, rather than either of the alternatives given in the question. If the two hydroxide ions occur together with a divalent cation such as magnesium in a compound, then the hydroxide ions would be written as (OH)2. Two ions should never be written as OH2, because that is the formula for water, with the ions in an unconventional order, rather than the formula of ions at all.
What else can I help you with?
What is dihydroxy?
two hydroxides (OH-OH)
How many moles of OH ions are produced from the hydroxides of group ii metals for every mole of the base that dissociates?
That would be 2 moles of OH- (hydroxide) ions because there are 2 of them associated with each 1 of the group II metal.
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 molecules of OH ions are produced from the hydroxides of group II metals for every molecule of base that dissociates?
For every molecule of a group II metal hydroxide that dissociates, two hydroxide ions (OH⁻) are produced. This is because group II metal hydroxides, such as magnesium hydroxide (Mg(OH)₂) and calcium hydroxide (Ca(OH)₂), dissociate in a 1:2 ratio, releasing two hydroxide ions for each formula unit. Thus, for each molecule of base that dissociates, two OH⁻ ions are generated.
How many atoms are there in Mg(OH2)3?
3?
Would H2O and OH2 be the same thing. If not why?
H2O and OH2 are not the same thing. H2O represents a water molecule composed of two hydrogen atoms and one oxygen atom. OH2 is not a valid chemical formula and does not represent any known compound.
What is dihydroxy?
two hydroxides (OH-OH)
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
When a sign is not written between two numbers how do you calculate that?
If there are parentheses around the numbers (two parentheses for each number) multiply them.
What is the answer to thirty six divided by parentheses four to the power of two parentheses times four?
12
Associative?
To change the parentheses from two numbers to two numbers.
What two bases are commonly found in antacids?
The most common of these bases are hydroxides, carbonates, or bicarbonates.
What does when you have two numbers in parentheses?
two numbers in parentheses, separated by a comma are generally coordinates on a cartesian plane (x-y graph) and appear in the order of (x, y)
What is the atom OH2?
It's two hydrogen atoms bonded to an oxygen atom. IOW, water. Though it is not an atom, it is a molecule, more often written as H2O
2 plus parentheses 4 plus 7 parentheses equals?
2+(4+7)= 2+10= 12 so, the answer is twelve the correct way to say that arithmetic problem would be..... two plus the quantity four plus seven
What if you have two numbers in the paranthesis and you have to distrubite?
If you have two numbers in parentheses, such as (a)(b), and need to distribute them, you can use the distributive property. This involves multiplying each term in the first set of parentheses by each term in the second set. For example, if you have (x + y)(a + b), you would distribute to get xa + xb + ya + yb.
Are bases soluble in water?
Some bases are soluble in water, while others are not. Typically, bases that are Group 1 hydroxides or Group 2 hydroxides are soluble in water, but there are exceptions. Some bases, such as metal oxides or hydroxides of transition metals, are insoluble in water.
