What is a chemical name for the compound with the formula Na2s? (sodium (na) has one valance electron and sulfur (s) has 7 valence electrons.) a: sulfur sodate

b: sulfur bisulfate

c: sodium sulfate

d: sodium sulfide

Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate → enzyme-substrate complex (b) enzyme + substrate ←−→ enzyme + products (c) enzyme + substrate ←−→ enzyme-substrate complex → enzyme + products (d) enzyme + substrate ←−→ enzyme-substrate complex → enzyme-substrate complex + products