Explanation:
A mixture is defined as a substance in which two or more components are mixed together. Components in a mixture do not chemically combine together.
For example, sugar in water.
When solute particles completely and evenly mixed in a solvent then it is known as a homogeneous mixture. A homogeneous mixture is also known as a solution. For example, salt in water.
When solute particles are not evenly mixed in a solvent then it is known as a heterogeneous solution. For example, sand in water.
A compound is a substance in which two or more atoms are chemically combined together in a fixed ratio by mass. For example, is a compound.
Thus, we can conclude that given terms with their definitions are matched as follows.
1. Matter that is physically combined; has two forms of itself (homogeneous and heterogeneous) - Mixture.
2. A substance that that has uniform composition of two or more substances that cannot be seen - homogeneous mixture.
3. A substance that that has non-uniform composition of two or more substances that can be seen - heterogeneous mixture.
4. Substance composed of two or more elements bonded in a certain ratio by mass - Compound.
5. An example of a homogeneous mixture in a liquid form - solution.
Answer:
32.7 kilograms of aluminium oxide will be produced.
Explanation:
Mass of aluminum = 17.3 kg = 17300 g (1 kg = 1000 g )
Moles of aluminium =
According to reaction, 2 moles of aluminum gives 1 mole of aluminum oxide,then 640.74 moles of aluminum will give:
of aluminum oxide
Mass of 320.37 moles of aluminum oxides:
320.37 mol × 102 g/mol = 32,677.74 g = 32.67774 kg ≈ 32.7 kg
32.7 kilograms of aluminium oxide will be produced.
First of all, as you seen the gases are noble which means that will not react with each other and in this case each gas create individual pressure.
P= total pressure
P = pressure of neon
P = pressure of argon
P = pressure of helium {which is required}
P = P
+ P
+ P
1.25 = 0.68 + 0.35 + P
P = 1.25 - [0.68 + 0.35] = 0.22 atm
Answer: The pressure in atmospheres is 0.674 in the container if the temperature remains constant.
Explanation:
Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.
(At constant temperature and number of moles)
where,
= initial pressure of gas = 205 kPa
= final pressure of gas = ?
= initial volume of gas = 4.0 L
= final volume of gas = 12000 ml = 12 L (1L=1000ml)
(1kPa=0.0098atm)
Therefore, the pressure in atmospheres is 0.674 in the container if the temperature remains constant.