WorksheetsChemistry Final Exam Review 4/5
Total questions: 7
Worksheet time: 7mins
Which statement best describes a chemical reaction when it reaches equilibrium?
The concentrations of reactants and products are the same.
The concentrations of the reactants decrease to zero.
The forward and reverse reaction rates are the same.
The forward reaction rate decreases to zero.
As the temperature of a gas increases at constant pressure, the volume of the gas
decreases
increases
remains the same
In each of the four beakers shown in the accompanying image, a 2.0 gram shot of zinc reacts with 100 milliliters of HCl(aq) under the conditions shown.
In which beaker will the reaction occur at the fastest rate?
Beaker A
Beaker B
Beaker C
Beaker D
Which electron-dot symbol correctly represents an atom of its given element?
1
2
3
4
Which compound contains only covalent bonds?
LiOH
Ca(OH)2
Al(OH)3
CH3OH
What is the total number of electrons shared in a triple covalent bond between two atoms?
1
2
4
6
What is the electron configuration of a silicon atom in the ground state?
2-1
2-4
2-8-4
2-8-6
