What is the electron configuration using core notation for Ca2+?

A stronger nuclear pull as electrons and protons increase leads to:? A. A larger radius as energy levels increase B. Smaller radius as atomic number increases C. A smaller radius as electrons and neutrons both increase D.

A gas has a volume of 5.0 L at a pressure of 50 kPa. Solve for V2 when temperature is held constant and the pressure is increased to 125 kPa. a. 12.5 L b. 0.2 L c. 2.0 L d. 1250.0 L

Write the net ionic equation for the reaction of MgCl2 and LiOH in water?

The distance between the peaks of wave is called

Scientists who always report their observations and results truthfully possess the attitude of

Hydrochloric acid, HCl, reacts with solid NaOH. What are the products of this chemical reaction?

Why are emission spectra referred to as the fingerprints of the elements?

David has a weather balloon that he fills with helium and then releases. As the balloon rises into the atmosphere, the balloon gets bigger and bigger.

Beaux has purchased a synthetic material for a product he is launching. What is most likely a benefit of this material? A) It is biodegradable. B) It can be recycled cheaply. C) It is heavy. D) It can be mass produced.

Which equation represents a neutralization reaction? A) 6HC1O - > 4HCL + 2HCLO3 B) CH4 + 2O2->CO2+2H20 C) Ca (OH) 2+H2SO4->CaSO4+2H2O D) Ba (OH) 2+Cu (NO3) 2->Ba (NO3) 2+Cu (OH) 2