What 3 gases does the flame test check for and what should you expect to see/hear?

Which observation about methane (ch4) can be explained using the orbital hybridization theory?

17. g to mL Density = 3.291g/mL

In an effort to try winning World War I, many countries broke previously created treaties and pacts that banned the use of chemical-based weapons.

Oxygen gas O2 was placed into a closed container at 273.15K. What is the change in temperature that is required in order to increase the pressure from 2.50atm to 7.50atm and decrease the volume from 3.50L to 1.50L?

For each set of elements represented in this periodic table outline, identify the principal quantum number, n, and the azimuthal quantum number, ℓ, for the highest energy electrons in an atom of one of those elements

If the specific heat of copper is 0.711 J/g•°C, how much copper would it take if the heat given off is 54.85 calories and the temperature change is 205°C.

Why is it is difficult to compress a liquid? a. liquid takes the shape of its container. b. the liquid particles flow away when compressed. c. liquid becomes solid when compressed. d. the liquid particles are very close together.

A mixture of two compounds, a and b, was separated by extraction. after the compounds were dried, their masses were found to be: 105 mg of compound a and 91 mg of compound b. both compounds were recrystallized and weighed again.

What are the five types of chemical reactions?

Which chemical reaction do plants use to take carbon dioxide out of the air