What does concentration mean

How many molecules of H2S are required to form 79.0 g of sulfur

The number of electrons in an oxide ion O^2 - is?

A chemical reaction is most likely to occur when the colliding particles have the proper

Which of the following shows three elements in order of decreasing electronegativity? A) Br, Cl, F B) F, O, N C) Se, S, O D) C, N, O

What is the volume of liquid in a round bottom flask of 11.0cm, to the nearest 0.001L.

What metric unit is used to measure distance?

In the chemical formula 3NO2 the number 3 is a

W (g) + X (g) - -> Y (g) + Z (g) Gases W and X react in a closed, rigid vessel to form gases Yand Z according to the equation above. The initial pressure of W (g) is 1.20 atm and that of X (g) is 1.60 atm. No Y (g) or Z (g) isinitially present.

In this process, a piece of paper with small holes in it separates a heterogeneous mixture by letting through the small particles and keeping out the big ones. That is called as

The double bond between carbon and oxygen is similar to an alkene C-C, except that C o is: a) shorter and weaker. b) shorter and stronger c) longer and weaker. d) longer and stronger.