which activity most contributed to economic interdependence among West African peoples? farming, hurding, textiles, trade.

How many grams are in 7.5 moles of chromium?

Fe+Pb (NO3) 2 single replacement reactions

Considering the following precipitation reaction: Pb (NO3) 2 (aq) + 2KI (aq) → PbI2 (s) + 2KNO3 (aq) Which ion would NOT be present in the complete ionic equation?

If core electrons completely shielded valence electrons from nuclear charge (i. e., if each core electron reduced nuclear charge by 1 unit) and if valence electrons did not shield one another from nuclear charge at all, what would be the effective

Bill Jones thinks that he has discovered a silver mine. A 54.37 gram sample of shiny metal is added to a graduated cylinder containing water, and the water level rises from 35.7 mL to 52.4 mL. Calculate the density of the metal.

Name four elements that have properties similar to chlorine

What are three signs that a chemical change has taken place

Youll get brainliest if you have it right! How much heat does 225 g of water gain when its temperature rises from 25%C to 32°C? A. 6.59kj B. 21.65 kj C. 0.376kj D. 30.12kj

Explain hydrocarbons as fue

How many grams of K2CO3 are needed to prepare a 400.0 mL of a 4.25M solution? 1.7 g 235 g 81.3 g 138 g