The activation energy, ea, for the reaction 2 n2o5 (g) latex: \longrightarrow ⟶ 4 no2 (g) + o2 (g) is 22 kj/mol. what is the rate constant at 84.8°c if the rate constant is 1.868 sec-1 at 16.6°c? enter to 3 decimal places. latex: \ln\frac{k2}{k1}=\frac{ea}{r}\left( \frac{1}{t1}\: -\frac{1}{t2}\right)

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

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?

Based on its chemical properties, identify the position of each chemical family on the periodic table.