Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
Write a balanced chemical equation, include phases, for the following acid reaction:HBr reacting with Li2O.
A
2 HBr(aq) + Li2O(s) → H2O(l) + 2 LiBr(aq)
B
2 HBr(aq) + Li2O(s) → H2(g) + 2 LiBrO(aq)
C
2 HBr(aq) + Li2O(s) → 2 HO(aq) + 2 LiBr(aq)
D
HBr(aq) + Li2O(aq) → H2O(l) + 2 LiBr(s)
Verified step by step guidance
1
Identify the reactants and products in the chemical reaction. The reactants are HBr and Li2O, and the products are H2O and LiBr.
Determine the phases of each substance: HBr is aqueous (aq), Li2O is solid (s), H2O is liquid (l), and LiBr is aqueous (aq).
Write the unbalanced chemical equation with phases: HBr(aq) + Li2O(s) → H2O(l) + LiBr(aq).
Balance the equation by adjusting coefficients to ensure the same number of each type of atom on both sides of the equation. Start by balancing the lithium (Li) atoms, then the bromine (Br) atoms, and finally the hydrogen (H) and oxygen (O) atoms.
The balanced chemical equation is: 2 HBr(aq) + Li2O(s) → H2O(l) + 2 LiBr(aq).