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Which substance can not be decomposed by chemical means?
electronegativity
endothermic physical change
C
temperature
H2 + energy → H + H
The number of solute particles increases, and the boiling point increases.
2.0 liters of O2(g)
formula mass
A beaker contains a dilute sodium chloride solution at 1 atmosphere. What happens to the number of solute particles in the solution and the boiling point of the solution, as more sodium chloride is dissolved?
electronegativity
endothermic physical change
C
temperature
H2 + energy → H + H
The number of solute particles increases, and the boiling point increases.
2.0 liters of O2(g)
formula mass
Which phrase describes this change?
electronegativity
endothermic physical change
C
temperature
H2 + energy → H + H
The number of solute particles increases, and the boiling point increases.
2.0 liters of O2(g)
formula mass
Which term identifies a factor that will shift a chemical equilibrium?
electronegativity
endothermic physical change
C
temperature
H2 + energy → H + H
The number of solute particles increases, and the boiling point increases.
2.0 liters of O2(g)
formula mass
Which equation represents energy being absorbed as a bond is broken?
electronegativity
endothermic physical change
C
temperature
H2 + energy → H + H
The number of solute particles increases, and the boiling point increases.
2.0 liters of O2(g)
formula mass
At STP, which gas sample has the same number of molecules as 2.0 liters of CH4(g) at STP?
electronegativity
endothermic physical change
C
temperature
H2 + energy → H + H
The number of solute particles increases, and the boiling point increases.
2.0 liters of O2(g)
formula mass
Which term is used to describe the attraction that an oxygen atom has for the electrons in a chemical bond?
electronegativity
endothermic physical change
C
temperature
H2 + energy → H + H
The number of solute particles increases, and the boiling point increases.
2.0 liters of O2(g)
formula mass
Which term represents the sum of the atomic masses of the atoms in a molecule?
electronegativity
endothermic physical change
C
temperature
H2 + energy → H + H
The number of solute particles increases, and the boiling point increases.
2.0 liters of O2(g)
formula mass
Check it!