How many moles of hydrogen gas can be produced from 4 moles of aluminum?

How much h2 gas at stp can be produced by the reaction 2 na (s) + 2 h2o (ℓ) - → h2 (g) + 2 naoh (aq) of 4.40 g of na and excess water? answer in units of l?

Which element is likely to be the most reactive? 1bromine 2chlorine 3fluorine 4iodine

Suggest why the ph of the gut secretions varies at different regions in gut answer key anatomy

How do organs relate to cells and tissues?

A sample of hydrogen occupies a volume of 351 mL at a temperature of 20 degrees Celsius. What is the new volume if the temperature increases to 38 degrees Celsius? (Do not forget to convert to Kelvin!)

plate a and plate b are both continental plates. what is ghe most likely result if the two plates collide?

According to the second law of thermodynamics, the entropy of any system always increases. According to the second law of thermodynamics, the entropy of any system always increases. True False

If the density of Cu is 8.96g/cm cubed, what is the volume of 28kg of Cu?

A piece of iron can change in different ways. How is iron bending different from iron rusting?

Which organism would least likely be selectively bred A) Dandelions B) Nantes Carrots C) Belgian Blue Cattle D) Hypoallergenic Cats