1. How is the chemical equation balanced? a. changing the subscript c. adding coefficient b. adding elements d. erasing elements 2. Which of the following is an example of combustion reaction? a. HCl + NaOH ----→ NaCl + H2O b. H2 SO4 + Na OH ------→ Na2 SO4 + H2O c. C18 H18 + O2 -------→ CO2 + H2O d. Ba Cl2 + Na Br ------→ Ba Br2 + Na Cl 3. Which statement is NOT true for the Law of Conservation of Mass? a. The total mass of the reactants is equal to the total mass of the products. b. The total mass of the products is equal to the mass of the reactants c. Grouping and regrouping/rearrangement of atoms d. No new atoms are created or destroyed
Ionic Equilibrium
Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
Arrhenius Acid
Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.
Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
Read the questions carefully and encircle the letter of the correct
answer.
1. How is the chemical equation balanced?
a. changing the subscript c. adding coefficient
b. adding elements d. erasing elements
2. Which of the following is an example of combustion reaction?
a. HCl + NaOH ----→ NaCl + H2O
b. H2 SO4 + Na OH ------→ Na2 SO4 + H2O
c. C18 H18 + O2 -------→ CO2 + H2O
d. Ba Cl2 + Na Br ------→ Ba Br2 + Na Cl
3. Which statement is NOT true for the Law of Conservation of Mass?
a. The total mass of the reactants is equal to the total mass of the products.
b. The total mass of the products is equal to the mass of the reactants
c. Grouping and regrouping/rearrangement of atoms
d. No new atoms are created or destroyed
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