A container holds 3.0 g of hydrogen. if it is evacuated and filled with methane at the same temperature and pressure, what is the mass of methane

Why is warmer near earth surface

When Arti kicks a football, two forces interact. Arti's foot exerts a force of 5N on the ball. What size force will be exerted on Arti's foot?

In a solution of salt and water if the concentration of salt molecule is greater outside a cell than inside then water molecules will

Alkaline earth metals are very reactive because of how many valence electrons?

What is the name of the element with a valence electron configuration of 2s22p1?

A student mixes 0.50 L of 0.0020 M Ba (NO3) 2 solution with 0.50 L of 0.0080 M Na2SO4 solution. Which equation shows the proper set-up to calculate molar concentration of Ba2 + ions in the new solution? (0.0020 M) (1 L) = (? M) (0.0020 M) (0.

What is the minimum number of carbon atoms a ketone may contain

The gas-phase decomposition of NOBr has a k = 0.810 M-1 s-1 at 10°C. NOBr (g) → NO (g) + ½ Br2 (g) rate = k[NOBr]2 We start with 0.00200 M NOBr in a flask at 10°C. (a) How many minutes does it take to use up 0.

What new scientific evidence led to changes in Dalton's atomic theory?

What other property do metal share