What is the number of cations is present in 1.17 g of sodium chloride? Given Na=6*10power 23 mol

Which of the following would increase the level of muscle contraction? Choose one or more: A. blockage of the Ca2 + pump B. addition of a molecule to bind free Ca2 + C. addition of a leaky Ca2 + channel to the sarcoplasmic reticulum D.

How many protons, neutrons, and electrons are there in a neutral atom of 97tc (technetium-97) ?

What type of reaction is H2O

A 20.0 gram sample of an element contains 4.95 x 1023 atoms. what is the element?

A 0.050 M aqueous solution of which compound is the best conductor of electric current

The most common isotope of chromium has a mass number of 52. which notation represent a different isotope of chromium?

What is the molar mass of 37.96 g of gas exerting a pressure of 3.29 on the walls of a 4.60 L container at 375 K?

Which must be the same when comparing 1 mol of oxygen gas, O2, with 1 mol of carbon monoxide gas, CO? A. the mass B. the volume C. the number of molecules D. the number of oxygen atoms

List three quantum numbers you know

Electronegativities of the elements Na, Al, P, and Cl follow a specific trend across the period. Based on this trend, an electron will be most strongly attracted to A) Na / B) Al / C) P / D) Cl.