In the balanced equation 4Fe + 3O2 = 2Fe2O3 how many atoms of iron (Fe) are reacting with every three molecules of oxygen (O2) ?

How many moles of oxygen are in 1 mole of Ca (NO3) 2?

What is the common device used for measuring heat transfer for chemical reactions called? thermometer calorimeter molameter

What will most likely happen if a sound wave moves from the air through a solid? It will increase in wavelength. It will decrease in speed. It will increase in speed. It will decrease in wavelength

Compound j is optically active and has the molecular formula c6h10 and has a four carbon ring. on catalytic hydrogenation, j is converted to k (c6h12) and k is optically inactive. propose structures for j and k.

Science is a unique field of thought because it relies on to describe the world. •Observations and experim •Teachers and students •Books and writings •Scientists and statements

What does the water inside the jar represent

What is solubility? 1) solubility is how much solute will precipitate out of solvent 2) solubility is how much solvent will dissolve in solute 3) solubility is how much solid only will dissolve in liquid only

Is burning of coal a reversible change? If yes how?

How many grams of tin are found in 3.5 moles of tin

Determine whether each statement is a description of a physical property or a chemical property. Paper burns readily in air.