When the temperature of a rigid hollow sphere containing 565 L his gas is held at 615 K, the pressure of the gas is 1,755 Kpa. How many moles of helium does the sphere contain?

Describe the electron sea model of metallic bonding

How is it possible for compound to have both ionic and covalent bonds

What tissue does eczema affect

Zinc metal reacts with hydrochloric acid solution according to the reaction: zn (s) + 2 hcl (aq)  zncl2 (aq) + h2 (g). suppose 0.103 g of zn (s) is combined with 50.

What is a precipitate? It is a liquid that forms from solution during a chemical reaction. It is a reactant that forms from solution during a chemical reaction. It is a solid that forms from solution during a chemical reaction.

What's the difference between Mixture and Solution?

Which describes the alkalaine solution? A) pH less than 7 B) pH equal to seven C) basic D) acidic

Limestone is primarily a crystal form of caco 3 . How many moles of oxygen are in a 1.25 mol sample of caco 3 ? Only include the numerical value in your answer. Do not include units.

The expression of 5522 km in scientific notation is

Gallium crystallizes in a primitive cubic unit cell. The length of an edge of this cube is 362 pm. What is the radius of a gallium atom?