in a class of 40 students 32 offer maths 24 offer physics and 4 offer neither maths nor physics. how many offer both maths and phyics

Calculate the mass (in grams) of 3.913 x 1023 molecules of AICI3

Which is an example of a chemical change? a pan of water boils. a candle burns. a teaspoon of salt dissolves. a burner gets red hot

Energy released in a chemical reaction come somewhere that is contained in a chemical what

Which statement is true according to the kinetic theory? A. Molecules of different gases with the same mass and temperature always have the same average density. B.

Hydrogen chloride and oxygen react to form chlorine and water, like this: 4 HCl (g) + O2 (9) - --> 2 Cl2 (g) + 2 H20 (g) Write the pressure equilibrium constant expression for this reaction.

What type of solution is aerated water. why is it so.

What elements form chemical bonds

Which of the following is not a pseudoscientific claim

Which action by the British government was considered by American colonists to be a violation of their rights as Englishmen?

Calculate moles of oxygen atoms in 0.68mol of KMnO4