1)4FeCr2O7+ 8K2CO3 + 1 O22Fe2O3+ 8K2CrO4 + 8CO2 (a) How many molesof FeCr2O7are required to produce 44 molesof CO2? (b) How many moles of O2are required to produce 107.9 molesof Fe2O3? (c) If 309 molesof FeCr2O7react, how many molesof O2will be consumed?

Agood hypothesis includes which of the following? a: prediction b: data c: uncertainty d: conclusion

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?