What is the difference between an exothermic and endothermic reaction.

In a synthesis reaction, the elements Fe and S might react to form what

Iron and carbon monoxide are made by heating 5.53 kg of iron ore, Fe₂O₃, and carbon. What is the theoretical yield of iron in kilograms?

Which trait would most likely lead a scientist to repeat an experiment and verify the data?

How many atoms of Ca are present in 80.156 grams of Ca?

In order for hydrothermal liquefaction to work, which of the following are necessary? A. High pressure and no oxygen B. High temperatures and high oxygen C. High temperatures and low oxygen D. High temperatures and high pressure

How many chemical bonds do you expect ekasilicon to have and why

Express the rate of reaction in terms of the change in concentration of each of the reactants and products. 2A (g) → B (g) + C (g)

A type of element that has some of the properties of metals and some of nonmetals is called a

DDT is: A. banned in the United States B. still being used in other countries C. to blame for the near extinction of some bird species D. all of the above

7) Sodium is much more apt to exist as a cation than chlorine because: a) chlorine is a gas and sodium is a solid b) chlorine has a greater electron affinity than sodium c) chlorine is bigger than sodium d) chlorine has a greater ionization energy