What is meant by the term polar molecule

give the chemical composition of the followings : Name Chemical Composition Coal gas Water gas Producer gas Natural gas

The table below gives the numbers of protons, electrons, and neutrons in four atoms. Atom Number of protons Number of electrons Number of neutrons 1 39 39 52 2 40 40 50 3 39 39 54 4 40 40 51 Based on the information that is given, which atom in the

Imagine you are camping in the desert. Describe two ways you might get water if none was nearby.

If 6.24 L of a gas at 45.0°C is cooled until its volume decreases to 5.17 L, what is the temperature of the gas in degrees Celsius

6 What is the main difference between a homogeneous mixture and a heterogeneous mixture? A. The number of ingredients in each will differ. B. The components of a homogeneous mixture are evenly distributed. C. A homogeneous mixture is easier to make.

What allows electrons to flow between electrodes in an electrochemical cell? a - conducting wire b - salt bridge c - electrolyte solutions d - battery

How does the number of molecules in 1 mol of oxygen compare with the number of molecules in 1 mol of nitrogen? 1 mol of oxygen has fewer molecules. 1 mol of oxygen has more molecules. Each sample has the same number of molecules.

What types of elements tend to combine to form molecular compounds?

Removing salt from water would decrease its what

How can a gardener remedy soil that is overly basic.