For the reaction C2H5OH + O2 - - > 3CO2 + 3H2O

delta H = - 2434 kJ/mol.

Is this an exothermic or endothermic reaction?

Which element if combined with iodine, will have the greatest attraction for the iodine electrons? B C P

Which mineral has the chemical formula Fe2O3?

Who is referred to as "the Father of Modern Chemistry" a. Andreas Vesalius c. Robert Boyle b. William Harvey d. Antonine Lavoiser

In the reaction below, which species is oxidized? mn (s) + pb (no3) 2 (aq) - - > mn (no3) 2 (aq) + pb (s) question 5 options:

If you have 1.82 x 1024 atoms of Oxygen in Oxygen Gas (O2), how many grams do you have?

Identify each enthalpy change by name and classify each change as exothermic or endothermic. 1. 1 mol NaCl (s) à 1 mol NaCl (l) 2. C4H10 O (l) à C4H10O (g) 3. H2O (g) à H2O (l) 4. 1 mol NaCl (s) + 3.

Calculate the number of atoms in a 1.26*103 g sample of silicon.

A region that has a large number of atoms whose magnetic fields are lined up parallel to a magnet's field is A. the magnetosphere. B. the magnetic declination. C. a magnetic domain. D. a ferromagnetic region.

Name the element that has atoms with the same electronic structure as sulfur ion

The mass of a 2.0 centimeter sample of a substance is 3.2 grams. Calculate the density of the substance