7. Which of the following pairs of elements is most likely to form an ionic compound?
b. potassium and neon
c. barium and aluminum
a. oxygen and fluorine
d. lithium and bromine

Jewelweed, a flowering plant, has seed pods that burst open when touched and forcefully eject their seeds. these structures are favorable because they a. can cause genetic changes to occur. b. prevent germination within the seed pod. c. aid in the dispersal of the species. d. attract insects that aid in pollination.

Use the measurements in the table to determine which unidentified metal has the highest density. metal volume mass a 10.5 cm3 122 g b 14.2 cm3 132 g c 16.1 cm3 115 g d 12.7 cm3 126 g

What powdery mineral is a health hazard when airborne?