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

delta H = - 2434 kJ/mol.

Is this an exothermic or endothermic reaction?

What information is needed to calculate the ph of a solution?

A total mechanical energy of an object is calculated as

Chlorine has the electron configuration 1s22s22p63s23p5. how many valence electrons does it have?

Use VESPR theory to predict the molecular shape of the following molecules. 4. carbon dioxide (CO2) 5. methane (CH4) 6. the nitrate ion [NO3]-

Which lists the substances from least to most acidic? A. ammonia, blood, milk, orange juice B. orange juice, milk, blood, ammonia C. ammonia, milk, blood, orange juice D. orange juice, blood, milk, ammonia

Which of the following bonds is the most polar in nature: (1) Cl2 (2) HCl (3) HBr (4) HI

Combustion analysis of a 13.42-g sample of the unknown organic compound (which contains only carbon, hydrogen, and oxygen) produced 36.86g CO2 and 10.06g H2O. The molar mass of estriol is 288.38g/mol.

What concept in Dalton's atomic theory has been modified? A. All matter is composed of atoms. B. Atoms of different elements have different properties and masses. C. Atoms can combine in chemical reactions. D. Atoms cannot be divided.

Which particles in an atom can increase or decrease in number without changing the identify of the elements?

Which process best describes the cause of lightning