Why is the Lewis diagram for carbon dioxide linear?

Based on the following balanced equation, how many S atoms will be formed by reacting 1,078 molecules of H2S?   SO2  +   2H2S  –> 3S   + 2H2O

How many moles of carbon are in one mole of caffeine (C8H10N4O2}?

For the following reaction, identify the Lewis acid.    a. I b. II c. III d. Both I & III    

Why is an ionic compound unlikely to consist of two negatively charged ions?

The numbers below represent incorrect scientific notation. Transform each one into correct scientific notation. 234.0 x 101  [Faye1] 36 x 10-4  [Faye2] 0.993 x 105  [Faye3]

Which of the following compounds have +1 as a formal charge on an oxygen atom?    a. I b. II c. III d. IV e. both I & IV

The density of a certain fraction of crude oil is 1.209 g/mL. What is the mass of 13,500 mL of this fraction in grams?  

Which of the indicated protons is most acidic?    a. I b. II c. III d. IV e. None of these

A sample of the nonexistent element mythium consists of 26% of an isotope with mass number 580, 32% of an isotope with mass number 582, and 42% of an isotope with mass number 581. What is the atomic mass of mythium to two decimal places?