How many moles of magnesium are needed to react with 3.0 mol of O2?

2Mg (s) + O2 (g) → 2MgO (s)

Carbonated drinks in cans have a small amount of space above the liquid level inside the can known as the "headspace." What would be true about the gas in this headspace if the can is opened?

Which element does the electron configuration 1s22s22p2 represent?

What energy is defined as the energy of motion

If the specific heat of iron is 0.449 J/g·K, what is the enthalpy change of this process for 100 g of Fe (s) ? Is the process endothermic or exothermic? Explain.

Adding lime to wastewater causes heavy metals to settle to the bottom of the water tank. His chemical process results in the formation of a A. Gas B. precipitate C. reactant

If 294 grams of FeS2 is allowed ti react with 176 grams of O2 according to the following equation how many grams of Fe2O3 are produced? FeS2 + O2 = Fe2O3 + SO2

Convert 3.57 moles of aluminum to grams

An average microwave uses a frequency of 2.54 GHz. How much energy is emitted?

Why scientist form a hypothesis

Step two of the procedure states: "Using sterile technique, place a loopful of inoculum from the M. luteus culture in the drop of nigrosin and mix." Which of the procedures qualifies as sterile technique?