Which reactions are oxidation-reduction reactions?

1. FeS (s) + 2HCl (aq) → H2S (g) + FeCl2 (g)

2. AgNO3 (aq) + NaCl (aq) → AgCl (s) + NaNO3

3. 2C3H6 (g) + 9O2 (g) → 6CO2 (g) + 6H2O (g)

4. Fe2O3 (s) + 3CO (g) → 2Fe (l) + 3CO2 (g)

What types of ancient organism formed oil and natural gas?

What kind of applications are there for the ph scale?

How does atmospheric pressure at sea level compare to the atmospheric pressure on the top of a mountain? Explain.

The earth's crust is part of which sphere?

You are performing an experiment in a lab to attempt a new method of producing pure elements from compounds. The only problem is that you do not know what element will form. By your previous calculations you know that you will have 6.

A discharging lead-acid battery is best described as 1.) chemical cells that use an electrical current 2.) chemical cells that produce an electrical current 3.) electrolytic cells that use an electric current 4.

Which direction does 3A + 2B = C + 2D + Heat

Which of the following shows a correct relationship between first ionization energies of the given atoms? View Available Hint (s) Which of the following shows a correct relationship between first ionization energies of the given atoms?

How many moles of AlCl3 are in 2.25L of a 0.15 molar solution? A. 0.07 moles B. 0.15 moles C. 0.34 moles D. 15

Which kind of element forms covalent bonds give two reasons for this