Im named after the person who created the 1st periodic table. Who am i?

The Sun is a main sequence star. During the last stage of its life cycle, it will become a white dwarf. It will shrink in size, but it will be very hot. Which of the stars in your chart do you think is a white dwarf and why?

Does the density of a gas depend on the molar mass of a gas?

Zinc (Zn loses 2 valence electrons) and Nitrogen (N) How does zinc complete the octet rule? What charge is on the zinc ion? What type of ion is zinc (cation/anion) ? How does nitrogen complete the octet rule? What charge is on the nitrogen ion?

Why is NaNO3 a homogenous mixture in terms of particle arrangement/composition?

What best describes the trends in electronegativity on the periodic table

In which time period did Ancient Greek philosophers propose that all matter was composed of four fundamental substances: earth, air, water, and wind? 8000 B. C. - 1000 B. C. 1000 B. C. - 450 B. C. 300 B. C. - 1400 A. D. 1774 - 1794 A. D.

You are assembling cars, and your job is to put the wheels on the vehicles. You have 3520 wheels, 14040 nuts (4 nuts per wheel) and 1000 car bodies at the start of the day.

Predict what would happen to life on earth if the Earth suddenly stopped rotating on its tilted axis?

The most common isotope of chromium has a mass number of 52. which notation represent a different isotope of chromium?

What is the molar mass of 37.96 g of gas exerting a pressure of 3.29 on the walls of a 4.60 L container at 375 K?