Ahomeowner paid $4000 for a solar water heater and received a tax credit of 30%. the system saves $450 per year. find a simple payback time. assuming a discount rate of 5%, find the payback time on the pw analysis. based

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

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one state would change   like louisiana to texas. thats a change

explanation:

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

distance, luminosity, brightness, radius, chemical composition, and temperature