How many grams of h2 are needed to react with 48 grams of o2, given the reaction: 2 h2 (g) + o2 (g) - - > 2 h2o (l) ?

Which statement about hydrogen bonding is true? Select one: a. Hydrogen bonding is the intermolecular attractive forces between two hydrogen atoms in solution. b.

What is the primary function of neurons?

Which of the following is true about phase changes? Evaporation occurs when a solid changes into a gas. Condensation occurs when a gas changes into a liquid. Sublimation occurs when a solid changes to a liquid.

Calculate the change in the enthalpy and the change in entropy when 1 mole of sic is heated from 25 ° c to 1000 ° c. the constant pressure molar heat capacity of sic varies with temperature as

A solution containing a mixture of metal cations was treated with dilute hcl and a precipitate formed. the solution was filtered and h2s was bubbled through the acidic solution. a precipitate again formed and was filtered off.

A critical biotic factor in Yellowstone National Park is A) geographic isolation B) high elevation C) high temperature in the summer D) population of wolves E) proximity to water

If energy can neither be created nor destroyed in a chemical reaction, what can happen to the energy

Effect of ph on conformation of aplha helix

How can we tell when something is polar or non-polar in an Inter-molecular Force?

A reaction is most likely to occur when reactant particles collide with