What piece of equipment is used to measure: length

What are the major products produced in the combustion of c10h22 under the following conditions? write balanced chemical equations for each. a. an excess of oxygen b. a slightly limited oxygen supply c. a very limited supply of oxygen d. the compound is burned in air

What does x represent in the formula for the compound xcl4?

Which element is the least metallic between cadmium, silver, zinc, or iron?