Which of the following reactions is irreversible? A. Zinc (Zn) reacting with hydrochloric acid (HCl)
B. Haber Process
C. Dehydrating copper sulfate (CuSO4)
D. Thermal decomposition of NH4Cl

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Numbers with a end value of 4 or lower are rounded up, while with an end value of 5 or higher are rounded down. true or false?

What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist

You exhale co2 which is produced during cellular respiration.  co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid.  the more physical activity you engage in, the more co2 your body is producing.  you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw.  can you see a change in the color of the indicator?