Question

А) Li→ Li2O→ LiOH→ Li2SO4 Б) Na→ NaOH→ Cu(OH)2→ CuCl2

Answer 1

A)Li+O2-Li2O
Li2O+H2-LiOH
LiOH+H2SO4-Li2SO4+H2O
B)Na+H2O-NaOH
NaOH+CuSO4-CuOH2+Na2SO4
CuOH2+Cl2-CuCl2+H2O

Answer 2

It looks like you have provided two sequences of chemical reactions. Let's examine each sequence:

А) Li → Li2O → LiOH → Li2SO4

This sequence represents a series of reactions involving lithium (Li) reacting with different substances to form various compounds:

1. Li (lithium metal) reacts with oxygen (O2) to form lithium oxide (Li2O).
2. Lithium oxide (Li2O) reacts with water (H2O) to form lithium hydroxide (LiOH).
3. Lithium hydroxide (LiOH) reacts with sulfuric acid (H2SO4) to form lithium sulfate (Li2SO4).

Б) Na → NaOH → Cu(OH)2 → CuCl2

This sequence represents a series of reactions involving sodium (Na) and copper (Cu) compounds:

1. Na (sodium metal) reacts with water (H2O) to form sodium hydroxide (NaOH).
2. Sodium hydroxide (NaOH) reacts with copper(II) chloride (CuCl2) to form copper(II) hydroxide (Cu(OH)2).

It's important to note that chemical reactions often involve specific conditions (temperature, pressure, presence of a catalyst, etc.) and balancing of equations to ensure conservation of mass and charge. Additionally, these sequences may not be complete or represent the only possible reactions involving these elements and compounds.

If you have any specific questions about these reactions or chemistry in general, feel free to ask!