When atoms from group ia combine with atoms from group vii:
a.) a nearly 100% covalent bond forms
b.) the bond will be ionic.
c.) a weak bond will form.
d.) the resulting compound will be very unstable.
e.) a great deal of energy is absorbed.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

What are the major types of a chemical compound

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.