According to the Arrhenius definition, what does a base produce in water?
- AHydroxide ions (OH⁻)
- BCarbonate ions (CO₃²⁻)
- CHydrogen ions (H⁺)
- DChloride ions (Cl⁻)
According to the Arrhenius definition, what does a base produce in water?
What is a horizontal row of the periodic table called?
How many millilitres are in 1 litre?
Oxygen has 8 electrons. What is its electron configuration?
Using significant figures, what is 2,5 cm × 3,42 cm?
Какая связь существует в молекуле газообразного кислорода O₂?
Sulfuric acid reacts with sodium hydroxide: H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O. How many moles of NaOH neutralise 0,5 mol of H₂SO₄?
A liquid has a density of 1,2 g/mL. What is the mass of 250 mL of this liquid?
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