1. Propane (CH) is a gas that is often used during outdoor cooking. By adding a spark it instantaneously reacts with oxygen to produce a lot of heat. Carbon dioxide and water
vapors are released as the gas is burned.
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Which of the following is a compound? a.carbon b.oxygen c.hydrogen d.water

Consider the equilibrium system: 2icl(s) ⇄ i2(s) + cl2(g) which of the following changes will increase the total amount of of cl2 that can be produced? all of the listed answers are correct decreasing the volume of the container removing the cl2 as it is formed adding more icl(s) removing some of the i2(s)

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture