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

Chromium metal is plated onto a car bumper at a current of 10.0 amperes for 100 seconds. The plating bath contains chromium in the form of CrO42 - ions. How many grams of Cr are deposited in this process? (The atomic weight of Cr is 51.996 amu.)

If an object is in motion is it passing through the air, moving along the ground, or both

Calculate the volume od a CO2 cartridge that has a pressure of 850 PSI at a temperature of 21ºc the cartridge contains 0.273 mol of CO2

What happens to the shape of a liquid when moved from another container

As a general rule for remembering which atoms undergo fission and fusion: Fusion fuses elements lighter than iron. Fission divides elements heavier than iron. Fusion divides elements heavier than iron. Fission fuses elements lighter than iron.

Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? A. 2C (s) + H2 (g) →C2H2 (g); ΔG∘f=209.2 kJ/molB. N2 (g) + 3H2 (g) →2NH3 (g); ΔG∘f=-33.30 kJ/molC.

How do I find the molar mass of Copper (II) Nitrate?

Describe several main ideas in chemistry

What is the wavelength of a wave having a frequency of 1.75*10^ 14 s^ - 1?

What alkene (s) would be produced from the dehydration of cyclopentanol?