The mass of an electron is approximately equal to 1 over 1,836 of the mass of 1. a positron 2. a proton 3. an atom of helium 4.

If you accidentally lost some sand when you decanted tyhe NaCl, how would the % salt calculation be affected?

What type of organic reaction produces both water and carbon dioxide

The molar mass of calcium chloride (cacl2) represents the mass of one mole of: A) CaCl2 molecules B) calcium ions and chlorine molecules C) CaCl2 formula units or D) CaCl formula units

How many molecules are present in a drop of ethanol, c2h5oh, of mass 2.3*10^-2.3g? (NA=6.0*10^23mol^-1) explain why a) 3.0*10^19 b) 3.0*10^20 c) 6.0*10^20 d) 6.0*10^26

Is matter and mass always the same

The mass flow rate of gasoline leaving a refinery is 1610 kg/min. The specific gravity of a gasoline is 0.700. A retail gasoline pump is able to fill a 20.0 gallon automobile tank in 1.80 minutes.

Calculate the solubility of cux (ksp=[cu2+][x2-]=1.27*10-36) in a solution that is 0.190 m in nacn.

An atom has seven valance electrons which element could have this type of atom

How is the ocean important to human survival? restate the question

A sample of pure lithium contains 7.99% lithium by mass. What is the % lithium by mass in a sample of pure lithium nitrate that has twice the mass of the first sample?