Which of the following reactions is an example of a single replacement reaction? Select one:
a. Fe + CuSO4 --> FeSO4 + Cu
b. H2O --> H2 + O2
c. H2O2 --> H2O + O2
d. Na + Cl --> NaCl

Compare and contrast solutions and suspensions

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided