3. Chemical Reactions

Balancing Chemical Equations

Open Question
Gaseous carbon monoxide reacts with hydrogen gas to form gaseous methane (ch4) and liquid water.
Open Question
Solid aluminum sulfide reacts with water to form solid aluminum hydroxide and gaseous hydrogen sulfide.
Open Question
How many moles of o2 are in the chemical equation when balanced using the lowest whole numbers?
Open Question
The scientific principle which is the basis for balancing chemical equations is
Open Question
Na₂SO₃ represents sodium sulfite. What does the 4 mean in the formula 4 Na₂SO₃?
Open Question
Which coefficient of O2 is needed to balance the equation C₃H₈ + O₂ → 3 CO₂ + 4 H₂O?
Open Question
Based on your experience in the simulation, what do the numbers 3 and 4 refer to in 3 NH₄?
Open Question
The equilibrium system between hydrogen gas, bromine gas, and hydrogen bromide gas is given.
Open Question
When balancing a chemical equation, which of the following is/are permissible?
Open Question
When H₂SO₄is neutralized by NaOH in aqueous solution, the net ionic equation is ________.
Open Question
Write a balanced ionic equation for this acid-base reaction: Ca(OH)₂(aq) + 2 CH₃CO₂H(aq) →
Open Question
How does a balanced chemical equation show that mass is never lost or gained in a chemical reaction?
Open Question
In a chemical equation, the symbol (aq) indicates that the substance is
Open Question
Balance the chemical reaction equation P₄(s) + Cl₂(g) → PCl₅(g)
Open Question
How do you use the coefficient to calculate the number of atoms in each molecule