Which is a pure substance?

A) Trail mix

B) Table salt

C) Salt water

D) Pasta salad

How many photons are contained in a burst of yellow light (589 nm) from a sodium lamp that contains 623 kJ of energy?

Modern commercial airliners are largely made of aluminum, a light and strong metal. But the fact that aluminum is cheap enough that airplanes can be made out of it is a bit of historical luck.

A 30.00 ml ba (oh) 2 solution of unknown concentration was neutralized by the addition of 32.83 ml of a 0.1382 m hcl solution. write the balanced molecular equation for the neutralization reaction between hcl and ba (oh) 2 in aqueous solution.

the space shuttle releases a space telescope into orbit around the earth. the telescope goes from being stationary to traveling to a speed of 1700 m/s in 25 seconds whats the acceleration of the satellite?

An element is stable with 8 electrons in its

List the subatomic particles in terms of their mass from least to greatest.

Hi! So I've currently learned about the electronic configuration of elements. Although i'd like to take 1 step ahead.

Which type of hybridization leads to a bent molecular geometry and a tetrahedral electron domain geometry?

Place the following compounds in order of increasing strength of intermolecular forces. CO2 F2 NH2CH3 A) NH2CH3 < CO2 < F2 B) F2 < NH2CH3 < CO2 C) NH2CH3 < F2 < CO2 D) F2 < CO2 < NH2CH3

What are electron configurations?