Which formula represents a polar molecule?

(1) O2

(2) CO2

(3) NH3

(4) CH4

Balance the equation for magnasuin and oxygen to yield magnasuimoxide

What do all the atomic models have in common?

What is the mole mass of BaBr2?

In the reaction n2 + 3h2 - - - > 2nh3, how many grams of nh3 are produced if 25.0 g n2 reacts with excess h2? question 10 options:

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.

Ocean constitutes most of ___ of water a) Evaporation b) Precipitation c) Condensation d) Transpiration e) Sublimation Don't choose a random letter.

In the reaction, Zn + HCl-> ZnCl2 + H2, 25 grams Zn are reacted with 17.5 grams HCl. How many grams of H2 will be produced? A. 0.382 g of H2 B. 0.479 g of H2 C. 0.7865 g of H2 D. 0.484 g of H2

Is nail varnish soluble?

What is the periodic trend for atomic size from top and bottom in a group? From left to right in a period?

Which planets' orbits is the belt located between the main asteroid belt?