What determines an element's emission spectrum?

O A. The size of the sample

O B. The mass of the nucleus

O C. The electron energy levels

O D. The number of protons

why is the Bacteria Flagellum good

Which of the following parts of a dry cell corresponds to the salt bridge shown in a voltaic cell

How to write k2o as a lewis dot structure and steps

A bowl of soup with a temperature of 125 degrees Fahrenheit is placed in a refrigerator with an interior temperature of 38 degrees Fahrenheit. Predict how heat will flow.

Write a possible full set of quantum numbers for the electron gained when a bromine atom (br) becomes a bromide ion (br-).

How many calories are there in a 255 Food Calorie snack bar? a. 1 x 103 b. 2.55 x 105 c. 1.07 x 103 d. 60.9 e. none of the above

What is the greatest amount of ammonia (NH3) in moles that can be made with 4.7 mol N2 and 6.9 mol H2? Which reactant is limiting? How many moles of excess reactant will be left after the reaction?

Which one of these elements is an alkaline earth metal

Write the chemical equations for the neutralization reactions that occurred when hcl and naoh were added to the buffer solution.

Explain The relationship between engineering science and technology