Choose the statement below that is TRUE. Question 7 options: The term "strong electrolyte" means that the substance is extremely
1 answer:
Answer: A weak acid solution consists of mostly nonionized acid molecules.
Explanation:
Strong electrolytes are those solutions which undergo complete dissociation when dissolved in water. The dissociation of strong electrolytes is given by a right arrow.
Weak electrolytes are those solutions which do not undergo complete dissociation when dissolved in water. The dissociation of weak electrolytes is given by a rightleft arrow.
Weak acids are those substances which dissociate partially to give ions when dissolved in water. Thus most of molecules remain unionized in solutions.
Strong acids are those substances which dissociate completely to give ions when dissolved in water.
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This is an incomplete question, here is a complete question.
Draw a Lewis structure for H₂O that obeys the octet rule if possible and answer the following questions based on your drawing.
For the central oxygen atom:
The number of lone pairs =
The number of single bonds =
The number of double bonds =
Answer : The Lewis structure for H₂O is shown below.
For the central oxygen atom:
The number of lone pairs = 4
The number of single bonds = 2
The number of double bonds = 0
Explanation :
Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.
In the Lewis-dot structure the valance electrons are shown by 'dot'.
The representation of valence electrons of an atom by dots around the symbol of an element is said to be the Lewis-dot symbol.
In the representation of Lewis-symbol, one electron dot must put on each side of the element symbol then paired the electrons.
The given molecule is,
As we know that hydrogen has '1' valence electrons and oxygen has '6' valence electrons.
Therefore, the total number of valence electrons in = 2(1) + 6 = 8
According to Lewis-dot structure, there are 4 number of bonding electrons and 4 number of non-bonding electrons.
For the central oxygen atom:
The number of lone pairs = 4
The number of single bonds = 2
The number of double bonds = 0
24.25 moles of NO can be produced using 97 moles of HNO3.
<h3>What is balanced chemical equation?</h3>Equal numbers of atoms from various elements are present in both the reactants and the products in balanced chemical equations. Varied elements' atom counts in the reactants and products of unbalanced chemical equations are different.
3 Cu + 8HNO3 g → 3 Cu(NO3)2 + 2 NO + 4 H2O
The number of moles consumed can be calculated using comparing with coefficients in the balanced reaction .
So , from above eq we get that 8 moles of HNO3 are consumed to make 2 moles of NO.
⇒ 8 HNO3⇔2 NO
⇒ 1 HNO3⇔ 1/4 NO
This means that for each mole of HNO3 produces 1/4 moles of NO.
So , for 97 moles of HNO3 , moles of NO can be made,
So, total moles of NO made are 24.25 moles.
Lean more about balanced reactions here brainly.com/question/26694427
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