Which element act when you drop it in water?

when a reversible reaction is at equilibrium, the concentration of products and the concentration of the reactants is?

What distinguishes the rock cycle the water cycle the carbon cycle and the nitrogen cycle as Cycles

Which substance is needed in order for this biochemical reaction to occur?

How many iron (Fe) atoms are present within the reactant? Reactant = 4Fe + 3O (2)

8! How many moles are in 73410" molecules of KMO,

Which phase of matter has a fixed volume but variable shape

Given 10.8 grams of substance Y, if the substance absorbs 231 kilojoules of energy and the specific heat of the substance is 6.55 J/g·°C, what is the change in temperature?

Which sphere includes rocks and minerals? A. atmosphere B. biosphere C. geosphere D. hydrosphere

What defines a material as being a mixture?

What do igneous rocks form from? (20pts!)