Why do you think oxygen is important

At STP, which list of elements contains a solid, a liquid, and a gas? (1) Hf, Hg, He (3) Ba, Br2, B (2) Cr, Cl2, C (4) Se, Sn, Sr

How many valence electrons are there in an atom with the electron configuration [noble gas]ns2 (n - 1) d10np3?

The conjugate base of hydroquinone is used in the synthesis of PEEK. Is hydroxide a strong enough base for deprotonating hydroquinone? Phenolic protons (pKa ~ 10) are acidic than water (pKa ~ 15.

Alanine, h2nch (ch3) co2h, has ka = 4.5  10-3 and kb = 7.4  10-5. which species has the highest concentration at a ph of 7.00 in h2o?

What have scientists determined the average salt in the ocean

The inertness of the noble gases is due to a. the outermost shell has six electrons. b. the bonds they form with other elements. c. the number of protons and neutrons. d.

Xander is gaining weight. Which best describes what he can do to prevent obesity? exercise every day and also make healthy choices in his diet excercise once a week but make no change in his diet exercise once a week and also make healthy choices in

The town in the video stressed using locally made goods instead of imported goods. How could using locally made goods lower CO2 emissions?

Calculate the ΔHrxn for the following reaction: CH4 (g) + 2Cl2 (g) - - > CH2Cl2 (g) + 2HCl (g) Use the following reaction and given ΔH's: CH4 (g) + Cl2 (g) - - > CH3Cl (g) + HCl (g), ΔH = - 99.

Select all that apply to diffusion. A solid cannot diffuse in to another solid. Solids can diffuse in liquids. Liquids can diffuse in liquids. It is the process of intermingling atoms from one substance into another.