I. If 1.9 grams of FeO are reacted with 0.5 grams of Al how much heat is released/absorbed?

Express the following number in scientific notation. 0.026890 =

In which situation can a mixture always be called a solution

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?