Suppose you find a yellow piece of metal in a stream how could you tell it's real gold

An article suggests that substrate concentration (mg/cm3) of influent to a reactor is normally distributed with μ = 0.40 and σ = 0.09. (round your answers to four decimal places.) (a) what is the probability that the concentration exceeds 0.60?.

How many atoms are represented by the formula (nh4) 2co3?

During the formation of a solution, energy is

For an atom's electrons, how many energy sublevels are present in the principal energy level n=4?

Show the conversion factor from Patolbf/ft2is 0.02089.

Common properties of sodium, calcium, iron, and gold

The closeness of a measurement to its actual value is a measure of its A. usefulness. B. reproducibility. C. precision. D. accuracy.

At 300 k the pressure inside a gas filled container is 500 kPa if the pressure inside decreses to 100kpa but the volume remains the same what is the final temperature of the gas

The SI unit for current is: joules volts ohms amps

In chemical reactions, there is a conservation of what?