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To count the number of ions in an equation, first identify the ions present in each compound. Then, determine the number of each type of ion by looking at the subscripts in the chemical formula. Finally, multiply the number of ions by the coefficient (if present) to get the total number of ions in the equation.
You need to know the concentration of ions in the solution and the mass of this ion.
concentration/ionic mass = number of moles
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If an equation has a negative number is the solution acidic?
No, having a negative number in an equation does not necessarily mean the solution is acidic. The acidity or basicity of a solution is determined by the concentration of hydrogen ions (H+) or hydroxide ions (OH-) present, not by the sign of a number in an equation.
What do you count to decide whether or not an equation is balanced?
You count the number of each type of atom on both sides of the equation to see if they are equal. If the number of each type of atom is the same on both sides of the equation, then the equation is considered balanced.
Which equation best represents the dissociation of water molecule into hydrogen ions and hydroxide ions?
The equation is: H2O------>H+ + OH-
In a chemical equation can you count the number of molecules?
Yes, you can count the number of molecules in a chemical equation by looking at the coefficients in front of the chemical formulas. Coefficients represent the number of molecules of each substance involved in the reaction. For example, in the equation 2H2 + O2 -> 2H2O, it shows that two molecules of hydrogen combine with one molecule of oxygen to form two molecules of water.
Which ions are not spectator ions in the precipitation equation Pb(NO3)2 plus 2KI -- and gt PbI2 and nbsp plus 2KNO3?
The spectator ions in this precipitation equation are K+ and NO3-. The non-spectator ions are Pb2+ and I-. They combine to form the precipitate PbI2.
If an equation has a negative number is the solution acidic?
No, having a negative number in an equation does not necessarily mean the solution is acidic. The acidity or basicity of a solution is determined by the concentration of hydrogen ions (H+) or hydroxide ions (OH-) present, not by the sign of a number in an equation.
What number should be placed in front of CaSO4 to give the same total number of sulfate ions on each side of the equation?
To balance the number of sulfate ions on each side of the equation, a coefficient of 3 should be placed in front of CaSO4. This will give a total of 3 sulfate ions on each side of the equation.
Can you count the number of atoms in a chemical equation?
Yes, you can count the number of atoms in a chemical equation by taking into account the subscripts of each element within the formula. The subscripts represent the number of atoms of each element present in the molecule. By adding up the total number of each atom on both sides of the equation, you can determine the total number of atoms in the chemical equation.
What do you count to decide whether or not an equation is balanced?
You count the number of each type of atom on both sides of the equation to see if they are equal. If the number of each type of atom is the same on both sides of the equation, then the equation is considered balanced.
How do you identify the number of terms in an equation?
Carry out all the multiplications and divisions and then count them.
Can the total ionic equation shows the net change in the equation after spectator ions been removed?
Yes, the total ionic equation shows all the ions involved in the reaction, including the spectator ions. To find the net ionic equation, you can remove the spectator ions from the total ionic equation to emphasize the ions that participate in the actual chemical change.
How is a net ionic equation written from a ionic equation?
the spectator ions are removed
Is it true to check that an equation is balanced count the number of atoms of each type on each side of the equation?
Yes, that is correct. To check if an equation is balanced, count the number of each type of atom on both sides of the equation. The number of atoms of each element should be the same on both sides for the equation to be balanced.
How is a net ionic equation written in a complete ionic equation?
To write a net ionic equation from a complete ionic equation, you remove the spectator ions that appear on both sides of the equation. The remaining ions that participate in the reaction are then included in the net ionic equation. This simplifies the equation to show only the ions that undergo a chemical change.
The unit used for counting umbers of atoms ions or molcules is the?
You generally count them in moles, which is actually a number: 6.02X1023.
Which equation best represents the dissociation of the water molecules into hydrogen ions and hydroxide ions?
The equation is: H2O------>H+ + OH-
Which equation best represents the dissociation of water molecule into hydrogen ions and hydroxide ions?
The equation is: H2O------>H+ + OH-
