Question

Помогите пожалуйста по химии! Заранее спасибо)) Закончите уравнение реакции, расставьте коэффициенты: a) Mg + O2 = б) Al + HCl = в) Zn(NO3)2 + NaOH = Ещё раз огромное спасибо!

Answer 1

2Mg+ o2= 2mgo
2Al+ 2hcl=2 alcl+ h2^
Zn(no3)2+ 4Naoh= na2[zn(oh)]+2nano3

Answer 2

Balancing Chemical Equations

Sure, I'd be happy to help you with balancing chemical equations in chemistry!

a) Balancing the Equation: - The unbalanced chemical equation is: Mg + O2 = - The balanced chemical equation is: 2Mg + O2 = 2MgO - Explanation: This balanced equation shows that 2 moles of magnesium react with 1 mole of oxygen to produce 2 moles of magnesium oxide.

b) Balancing the Equation: - The unbalanced chemical equation is: Al + HCl = - The balanced chemical equation is: 2Al + 6HCl = 2AlCl3 + 3H2 - Explanation: This balanced equation indicates that 2 moles of aluminum react with 6 moles of hydrochloric acid to produce 2 moles of aluminum chloride and 3 moles of hydrogen gas.

c) Balancing the Equation: - The unbalanced chemical equation is: Zn(NO3)2 + NaOH = - The balanced chemical equation is: Zn(NO3)2 + 2NaOH = Zn(OH)2 + 2NaNO3 - Explanation: This balanced equation demonstrates that 1 mole of zinc nitrate reacts with 2 moles of sodium hydroxide to yield 1 mole of zinc hydroxide and 2 moles of sodium nitrate.

I hope this helps! Let me know if there's anything else you'd like to learn about chemistry.