Давай я тебе помогу, только писать научись
K₂CO₃ + 2HCl = 2KCl + CO₂ + H₂O
2K⁺ + CO₃²⁻ + 2H⁺ + 2Cl⁻ = 2K⁺ + 2Cl⁻ + CO₂ + H⁺ + OH⁻
CO₃²⁻ + H⁺ = CO₂ + OH⁻
<span>2)4</span>
<span>3)1</span>
<span>4)4 </span>
<span>5)1</span>
<span>6)2 </span>
<span>7)3</span>
<span>8)3</span>
<span>9)3</span>
<span>10)1</span>