importance of pH value in daily life

The mass of an electron is 9.11 * 10-31 kg. What is the uncertainty in the position of an electron moving at 2.00 * 106 m/s with an uncertainty of Δv = 0.01 * 106 m/s?

What do carbon 12 carbon 13 and carbon 14 have in common?

Use the periodic table to select the chemical symbol for each element The symbol for carbon is The symbol for hydrogen is The symbol for nitrogen is The symbol for iron is The symbol for copper is DONE

A virus has a mass of * 9.010-12mg and an oil tanker has a mass of * 3.0107kg. Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.

Which compounds give a 1h nmr spectrum with two signals in a ratio of 2:3?

A certain metal, m, has four stable isotopes: 50m (4.31%, 49.95 amu), 52m (83.76%, 51.94 amu), 53m (9.55%, 52.94 amu) and 54m (2.38%, 53.94 amu). what is the average atomic mass of the metal as it would be seen in the periodic table?

A hydrocarbon with only single bonds is classified as a. an alkene. b. an alkyne. c. saturated. d. unsaturated.

What is the name of the scientist who discovered the electron

A hypothesis can be described as Question 1 options: a law. a wild guess. a theory. a plausible explanation.

Which sequence of processes must occur for an atom of carbon to go from a human to a car? a. Respiration, photosynthesis, decompiosition b. Fossilization, decomposition, respiration c. Photosynthesis, combustion, respiration d.