What does an atomic number describe?

The number of nuclei

The number of protons

The number of neutrons

The number of electrons

What is the definition of "specific heat capacity"?

A scientist studies how the temperature of a baseball affects how far it goes when hit by a bat. What will make this experiment more repeatable? O A. Using the exact same kind of baseball each time O B.

Explain how we as humans can cause multiple problems in the food chain of the ocean

What is the definition of luminosity

As white light passes through a prism, the red (longer) wavelengths bend less than the blue (shorter) wavelengths, so forming the rainbow of colors. True or false?

A Ferrari travels 250 km in 1.5 hours. Approximately how fast is it going? A. 167 km/h B. 375 km/h C. 0.006 km/h D. not enough information

Identify the following as combination, decomposition, replacement, or ion exchange reactions: Al (s) + 3 Cl2 (g) → 2 AlCl3 (s) Ca (OH) 2 (aq) + H2SO4 (aq) → CaSO4 (aq) + 2 H2O (l

What is a moving mass of water called?

Before the positive psychology movement, psychology focused mainly on

in terms of loudness and pitch how would you compare the sounds made by a mosquito flying near your ear and the croaking of a bullfrog?