For each of the following compounds, write the symbols of the ions in the compound, and the number of each ion in the molecule of that compound.

cal2
na2co3
ga(cio3)3
cuf2
(nh4)3po4
feso4
mg(no3)2
nh4no2
kc2h3o2
na2cr2o7

What metric units would you use to measure the thickness of a key

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.