Some physical properties that a pencil would have is, color, density, texture, hardness (in this case the lead is soft). phase (liquid,solid gas), shape, size. physical properties describe the look and feel of a substance. I hope this helps
(1) O2 Is a Nonelectrolyte: because it does not ionize when dissolved in a solution
(2) Xe Is a Nonelectrolyte: because it does not ionize when dissolved in a solution
(3) C3H8 Is a Nonelectrolyte: because it does not ionize when dissolved in a solution
(4) KNO3 Is an electrolyte: because it ionizes when dissolved in a solution
Electrolytes:
Electrolytes are the substance whose aqueous solution conducts electricity. These are mainly two types:
1. Strong electrolytes
2. Weak electrolytes:
Strong electrolytes:
Strong electrolytes have following properties:
1. They are ionic compounds.
2. They are completely separates into their ions when dissolved in water.
3. In solution form they conduct electricity due to present of ions but in solid form means neutral molecule does not conduct electricity.
Weak electrolytes:
Weak electrolytes are partially ionizes in water.
In general strong electrolytes are strong acid and strong base while weak electrolytes are weak acid and weak bases.
Nonelectrolyte:
The substance which does not ionize when dissolved in a solution is called non-electrolyte. It is a poor conductor of electricity.
Answer:
COLD WATER
Explanation:
- The solubility of a gas increases with decrease in the temperature.
Also the solubility of a gas increases with increasing pressure.
- A gas can be compressed by increasing the pressure and decreasing the temperature.
- FOR example the gas in domestic LPG cylinders are in compressed form inside the cylinder.
- A gas takes the form of a liquid after compressing. Whenever it comes back to normal temperature and pressure it takes back to its gaseous form back.
The gaseous oxygen is water soluble and does not react with it
O2 + 2H2O + 4 e= 4 OH-
Active transport requires energy and passive does not use energy.