A 42.3 mol gas sample takes up 25.2 liters at 25oC. What was the pressure, in atm, of the original sample

What is the volume of 1 lb of mercury. the density of mercury is 13.546g/ml?

What are the first five elementsof the periodic table?

Assume that 5.60 L of hydrogen gas at STP reacts with copper (II) oxide according to the following balanced equation. How many grams of copper are produced? CuO (s) + H2 (g) - -> Cu (s) + H2O (g)

What are some properties of matter that can be identified without testing or measuring

The nucleus of an atom is dense and positively charged. What was observed when positively charged particles were radiated onto a gold atom during Rutherford's experiment because of this? Negative charges were concentrated at the center of the atom.

How far is the Earth for the moon?

It is thought that organelles of eukaryotic organisms, such as mitochondria and chloroplasts (in plant cells) came from

How does temperature affect molecules

The color of Benedictâs solution is blue. What color does it change to in high sugar concentration?

What functional groups of the emulsifying agent provide the hydrophilic character? Do these groups affect the pH?