petrol pump attendant close the full fuel cap quickly after filling petrol in vehicles what could be the reason

Sort the compounds: conjugated or non conjugated. - but-2-enoic acid - butanoic acid - hex-4-en-3-one - hexan-3-one

How are ecosystems the same?

How many copper atoms are in a pure copper statue with a mass of 103 kg?

If at 20 ∘C and a partial pressure of 760 mmHg, the solubility of CO2 in water is 0.169 g/100mL, what is the solubility of CO2 in an open bottle of seltzer water at 20 ∘C?

The universe is made up of billions of galaxies, and each galaxy is made up of billions of stars. Is it possible to see any of these galaxies with the naked eye? A. Yes, some of the galaxies can be seen with the use of a microscope. B.

A mixture of He He, N 2 N2, and Ar Ar has a pressure of 22.1 22.1 atm at 28.0 28.0 °C. If the partial pressure of He He is 2475 2475 torr and that of Ar Ar is 1049 1049 mm Hg, what is the partial pressure of N 2 N2?

Oceans make the temperaturs of nearby land more extreme ... True or false

The Greek letter D stands for A. Mass of B. Rate of C. Change in D. Heat stored in

14. Two or more substances that are together but do not combine to form a new, pure substance.

A solution of a compound with a known extinction coefficient of 23,100 M-1cm-1 has an absorbance of 0.735 in a 1.30cm path length, what is the concentration of the solution