which of the following is the correct net ionic equation for the reaction that occurs when solutions of pb(no3)2 and nh4cl are mixed?

Afixed resistor has the following color bands: orange, red, brown, gold. what is the rated resistance

The graph shows a trend in an ecosystem over time caused by increased pollution in the region. what can you conclude from the graph? a. there’s lower biodiversity among birds. b. there’s a higher reproductive rate among birds. c. there’s a significant decline in the number of producers. d. other types of animals were unaffected by pollution.

Why are gold and platinum used for jewelry