100 Point test please help Arcology is a type of urban design that combines ecology and architecture to provide sustainable urban growth options. Which statement describes an arcology principle for sustainability?

Make everything walkable
Build smaller buildings
Purchase inexpensive food
Increase single use items

What is a property of a double replacement reaction

When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.

Which of the following pairs of elements is most likely to form an ionic compound? a oxygen and fluorine b sodium and aluminum c calcium and chlorine d nitrogen and sulfur