2. When iron reacts with oxygen, it forms iron oxide, or rust.

4 Fe + 3 O2 2 Fe2O3

If 112 g of iron (Fe) combines with 24 g of oxygen (O2), how much iron oxide is formed?

How many moles of copper must react to form 0.845

In any engineering design problem, the first step is to understand the problem and identify one or more possible solutions.

A 20 liter sample of gas is kept under a constant pressure of 100 kpa. the temperature is lowered from 360 k to 90 k. what is the new volume

According to the periodic table, carbon has an atomic mass of 12.011 u. This indicates that the most abundant isotope of carbon is carbon-11. carbon-12. carbon-13. carbon-14.

How much more sodium, in grams, is in a 3M solution than 2M soultion?

C6H12O6 + O2 > CO2 + H2O

In the current model of the atom, ___. electrons and protons are mixed together in a solid sphere electrons orbit around the positively charged nucleus in set patterns called orbitals electrons travel as waves in the electron cloud that surrounds

What information could you use to determine the atomic number of an unknown element that has a mass number of 22? O A. number of ions B. number of isotopes C. number of neutrons O D. number of electrons

Why organizing elements in increasing mass numbers would be rejected as a form of the periodic table?

Which elements can join with other elements to form covalent bonds? Check all that apply. beryllium (Be) carbon (C) cesium (Cs) hydrogen (H) iodine (I) nitrogen (N)