Which of the following equations has correct formulas and also is a balanced equation?

a. CaCO3 - > CaO + CO3

b. 3KCl + HNO3 - > 3HCl + KNO3

c. 2Be + O2 - > 2BeO

d. Mg + O2 - > MgO2

For the skeletal chemical equation LaC2 (g) + H2O (ℓ) → La (OH) 3 (s) + C2H2 (g) + H2 (g) what is the coefficient of C2H2 in the balanced equation?

Most scientific questions are developed from

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Given the following reaction 2Al + 3Cl2 - -> 2AlCl3 How many grams of AlCl3 aluminum chloride will be produced from 125 g of Al and 125 g of Cl2?