What does a coefficient represent in a chemical formula? How do you use the coefficient to calculate the number of atoms in each molecule?

What is the difference between a mechanical wave and an electromagnetic wave? A mechanical wave travels through empty space, while an electromagnetic wave travels through matter A mechanical wave has a short wavelength, while all electromagnetic

Using the following thermochemical data, what is the change in enthalpy for the following reaction: 3H2 (g) + 2C (s) + ½O2 (g) → C2H5OH (l) C2H5OH (l) + 3O2 (g) →2CO2 (g) + 3H2O (l), ΔH = - 1367 kJ/mol C (s) + O2 (g) →CO2 (g), ΔH = - 393.

Which is an example of a precipitation reaction? A. A solution of HCl mixes with a solution of NaOH to produce a solution of NaCl. B. A solution of AgNO3 mixes with a solution of NaCl to produce solid AgCl and a solution of NaNO3. C.

How to change ml to l and l to ml?

Dicarbon heptiodide formula?

For an endothermic reaction at equilibrium, the addition of a catalyst Group of answer choices causes no shift causes a shift to the right causes a shift to the left makes it an exothermic process

The atomic number of an element best corresponds to which of the following? O The mass of an atom of that element. O The number of electrons orbiting the nucleus of an atom of that element.

If a dinosaur once lived in mexico, and i now live in arkansas, can i be drinking the same water the dinosaur did?

Dough to which potassium bromate has been added rises better, producing a lighter, larger volume loaf.

Each enzyme has an optimal temperature and pH that it works best in. If enzyme ABC works best at pH 7, but ABC is in a cell with a pH of 9, will it catalyze more or less reactions?