Which of the following are decomposition reactions? How do you know this? (Multiple Answers)

[] A. N₂ (g) + 3H₂ (g) ➜ 2NH₃ (g)

[] B. CH₄ (g) + 2O₂ (g) ➜ CO₂ (g) + 2H₂O (g)

[] C. CaCO₃ (s) ➜ CaO (s) + CO₂ (g)

[] D. 2H₂O (I) ➜ 2H₂ (g) + O₂ (g)

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)

What is the correct lewis dot structure for arsenic?

#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.