Apr 22, 2016 · Consider the typical valencies of magnesium metal and dinitrogen in their compounds. Magnesium is a Group 2 metal with 2 valence electrons that can be oxidized: Mg …

The chemical formulas are a) "MgCl"_2 and b) "LiF". Magnesium Chloride A "Mg" atom has two valence electron. It can get a complete shell if it loses these electrons. A "Cl" atom has seven …

We also know that #x^2+6x+13= (x+3)^2+4# So that we can also write the integrals this way #int ( (2x+13)dx)/ (x^2+6x+13)=int ( (2x+6)dx)/ (x^2+6x+13) +7*int (dx)/ ( (x+3)^2+4)# Use now use …

Explanation: Step 1. Write the balanced chemical equation. The balanced equation is 2NaN3 → 2Na +3N2 Step 2. Strategy The problem is to convert grams of NaN3 to moles of N2 and …

First we need to write a balanced chemical equation: a CS2 + b O2 → c CO2 + d SO2 If we set a = 1, c is also 1, and d is 2, since each mole of CS2 will produce one mole of CO2 and two …

Determine the length AB in the figure below without using Cosine and Sine formulas? Using the original experiment by the Greek scientist Eratosthenes. Write about how you could determine …

How do the double and treble angle formulas for #sin# and #cos# relate to powers of #cos theta + i sin theta# ?

The molecular formula is "C"_6"H"_6"O"_2". We first need to determine the empirical formula, which represents the smallest whole number ratio of elements in the compound. We do that by …

How do you use double angle formulas to calculate cos 2x and sin 2x without finding x if #cos x = 3/5# and x is in the first quadrant?

Is CH2 an alkyl group? What is a compound that contains the ring structure of benzene called? What does alkyl mean? What are the general formulas for alkane, alkene, alkyne, alkyl, …