How many moles of Ca are in 425 g of Ca

Consider the compounds tert-butylcyclohexane and 4-tert-butylcyclohexanol. Using silica gel plates, which of the two compounds will have the higher Rf value when ethyl acetate is the developing solvent?

Equal volumes of the following pairs of solutions are mixed. Which pair will produce a buffer solution?

Air can best be described as a mixture of what 3 things

All atoms, whether atoms of gold (Au), iron (Fe), calcium (Ca) or oxygen (O), have two distinct areas. The first one is?

When an object is traveling at terminal velocity A. it is accelerating. B. its velocity is zero. C. the net force on the object is zero. D. there is an unbalanced force acting on the object.

A 3.00 L flexible container holds a sample of hydrogen gas at 153 kPa. If the pressure increases to 203 kPa and the temperature remains constant, what will the volume be?

Measurement of the functions of a nephron reveals a glomerular capillary pressure of 69 mm Hg, and a pressure in the capsular space of 15 mm Hg.

Water is unique because the density of it's solid is less than the density of it's liquid. Describe how life would be different if this weren't true

If an element has 1 valence electrons, how many dots will be in the elements dot diagram?

What is the temperature of a gas at STP?