What is the formula for sodium sulfide?

a.) Na3S

b.) NaS2

c.) NaS

d.) Na2S

Can you tell me what is erosion?

Write a correct and complete nuclear equation for the alpha decay of a parent atom having 102 protons and 167 neutrons useing the symbols for the elements actually involved in the process?

What was the weight percent of water in the hydrate before heating? Put answer in one decimal place. weight of water 0.349 weight of hydrate 2.107

Who was the first U. S. secretary of state to ever visit the remote cook islands in the south pacific

What do ribosomes make?

When metals react with nonmetals, an ionic compound generally results. what is the predicted general formula?

Why could the Bohr model not predict line spectra for atoms other than hydrogen?

Cryolite, Na3AlF6 (s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation. 1.) Balance the equation - AlO3 (s) + NaOH (l) + HF (g) - ->Na3AlF6+H2O (g) 2.) If 17.5 kilograms of Al2O3 (s), 51.

The volume, in liters, of 538 g of CO2

What are two types of cold air masses that influence the weather in North America? Name them and describe their humidity.