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The choice of filter paper is determined by the size of the particles to be separated from a mixture, which is a crucial step in filtration. The correct filter paper is selected based on the size of the particles to be filtered, ensuring effective separation.
3603
Effective volume is generally assumed for a specific amount of gas.
Effective volume is an idealized concept used to simplify gas calculations. It is typically assumed for one mole of gas at standard temperature and pressure, allowing for more straightforward comparisons and calculations within the context of ideal gas behavior.
3604
What substance did Milikan use in his atomizer experiment?
Milikan used oil in his atomizer to perform his famous oil drop experiment, which measured the charge of an electron. The viscosity of oil allowed for the creation of tiny, stable droplets that could be easily manipulated and measured.
3605
The shielding Effect across the period __________?
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Ionization energy generally increases as you move from left to right in a period, due to the increased effective nuclear charge and the shielding effect of inner electrons.
3607
Which of the following is a particle that has no charge?
In the context of the question, a neutral particle is one that has no electric charge. Among the given options, a Neutron is a subatomic particle that has no charge, while Alpha particle is made of 2 protons and 2 neutrons and has a net charge of -2, an Electron has a charge of -1, and a Proton has a charge of +1. Therefore, the correct answer is Neutron.
Ferric hydroxide (Fe(OH)3) is a highly effective adsorbent for removing arsenic from water. It forms insoluble complexes with arsenic ions, effectively removing them from the solution.
3609
What happens to the atomic radius as you move across a period?
As you move across a period, the number of protons in the nucleus increases, pulling electrons closer and reducing the atomic radius. This results in a decrease in atomic radius due to increased effective nuclear charge.
3610
A helium nucleus comprising of two protons and two neutrons with a charge of 2e is _________ ?
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