What coefficient will Oy have after balancing this equation? C4H2 + O2 → CO2 + H20
O A. 2.5
O B. 4
O C. 8
O D. 6

What is the formula for calcium iodide

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li