Question

1.Формулы только оснований приведены в ряду 1)КОН, К₂SO₄, K₂ O 2)NaOH, Cu (OH)₂,Ca (OH)₂ 3)H₂SO₄, LiOH, Li₂CO₃ 4)CuSO₄, Cu (OH)₂, Mg (OH)₂В выбранном ряду подчеркните щёлочи

Answer 1

2)NaOH, Cu (OH)₂,Ca (OH)₂ 

Answer 2

Formulas of Bases in the Given Series

The given series includes different chemical formulas. Let's identify the bases in each set and underline them:

1) KOH, K₂SO₄, K₂O 2) NaOH, Cu(OH)₂, Ca(OH)₂ 3) LiOH, H₂SO₄, Li₂CO₃ 4) CuSO₄, Cu(OH)₂, Mg(OH)₂

In the given series, the bases are underlined as follows:

1) KOH, K₂SO₄, K₂O 2) NaOH, Cu(OH)₂, Ca(OH)₂ 3) LiOH, H₂SO₄, Li₂CO₃ 4) CuSO₄, Cu(OH)₂, Mg(OH)₂

Therefore, the bases in the selected series are NaOH, LiOH, Cu(OH)₂, and Mg(OH)₂.