How many water molecules are in a block of ice containing. 750 mol of water.

Compare the densities among the three states of matter (which is highest, lowest?)

The protein keratin is composed of two helical strands that wrap around each other in what is called a coiled coil. The two strands remain in contact with each other over the entire length of the protein via hydrophobic interactions.

At a pressure 41 kPa, the gas in a cylinder has a volume of 18 liters. Assuming temperature remains the same, if the volume of the gas is decreased to 10 liters, what is the new pressure

Between what two consecutive energy levels of a hydrogen atom is there the greatest change in energy?

Topsoil does it contain most of the roots of small plant?

How many unpaired electrons arethere in Cu1 + ion

A 750 mL sample of nitrogen is heated from 30°C to 92 C at constant pressure. What is the final volume?

Write a brief explanation about why a plant extract is a mixture

What is an element that has more valence electrons than fluorine and less energy levels than sodium?

Why can't we breathe in pure oxygen for long