What is the relationship between the pressure and volume of a gas?
Key Concepts and Summary The volume of a given amount of gas is inversely proportional to its pressure when temperature is held constant (Boyle’s law). Under the same conditions of temperature and pressure, equal volumes of all gases contain the same number of molecules (Avogadro’s law).
Which substance is a colored gas?
Gases
| Name | Formula | Color |
|---|---|---|
| Chlorine | Cl2 | greenish yellow |
| Bromine | Br2 | red/brown |
| Iodine | I2 | dark purple |
| Chlorine dioxide | ClO2 | intense yellow |
Which salt is green in Colour?
Hydrated ferrous sulphate or green vitriol is the green coloured crystalline salt.
What gas is green in color?
Chlorine
Can sugar be broken down by chemical means?
Carbon, oxygen, and hydrogen are chemically combined in the compound sucrose. In every sample of sucrose, there are twice as many hydrogen particles as oxygen particles. The proportion of hydrogen particles in sucrose is fixed. Compounds can be broken down into simpler substances by chemical means, but elements cannot.
Which material can be broken down by chemical means?
Note that a compound: consists of atoms of two or more different elements bound together, can be broken down into a simpler type of matter (elements) by chemical means (but not by physical means), has properties that are different from its component elements, and. always contains the same ratio of its component atoms.
Which 2 gases can not be broken down by chemical means?
The answer is (2) CO and NH3. The chemical reaction can only break down chemical bonds between atoms inside the molecule. The He and Xe is consists of one atom only, so they can not be broken down by chemical means.
Can water be broken down by chemical means?
Elements are the simplest forms of matter and therefore cannot be broken down into simpler substances by any chemical or physical means. Each molecule of water is a chemical combination of two hydrogen atoms and one oxygen atom. Water can be decomposed into its elements only by chemical means.
Under which condition does a real gas behave most like an ideal gas?
Generally, a gas behaves more like an ideal gas at higher temperature and lower pressure, as the potential energy due to intermolecular forces becomes less significant compared with the particles’ kinetic energy, and the size of the molecules becomes less significant compared to the empty space between them.