a candle brought near the mouth of a jar containing hydrogen gas starts burning but is extinguished when pushed in side the jar, why?

What is the number of moles of solute in 250mL of a 0.4M solution?

Which of the following does a simple circuit require? A. an energy source, a resistor, and a capacitor B. a load, a conductor, and a resistor C. a load, a resistor, and a capacitor D. an energy source, a load, and a conductor

Which is the number placed in front of an element's symbol in a chemical formula?

Who got credit for developing the periodic table

Nitric oxide is formed in automobile exhaust when nitrogen and oxygen in air react at high temperatures. N2 (g) + O2 (g) 2NO (g) The equilibrium constant Kp for the reaction is 0.0025 at 2127°C. If a container is charged with 8.

Which two body systems contribute to acid-base balance of blood?

In which phase of matter do the molecules that make up the substance have the greatest kinetic energy

The atoms of the elements in this group are the most chemically reactive of the ones listed.

What is the name of NiI2

Give an example of how microorganisms might meet each of the challenges of life