Which elements do not have a set number of valence electrons?
a. alkali earth metals
b. metalloids
c. transition metals
d. halogens

The compound methyl butanoate smells like apples. its percent composition is 58.8% c, 9.9% h, and 31.4% o. what’s the empirical formula ?

What was the procedure by which case united states vs lopez went to court

Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?