<em>Answer</em>
A) amount of solute
<em>Explanation</em>
Dilution is adding more solvent to a solution to decrease the concentration of solute in a solution. The amount of solute does not change although the concentration, amount of solvent and the total volume does change.
An example of this would be adding more water (solvent) to lemonade to decrease the concentration of lemon juice (solute). Obviously this would increase the total volume because you are adding more water to the solution.
<em>hope this helps!</em>
<em>have a great day :)</em>
Answer: for the first question, Hypochloride is being released from your bleach to oxidize your fabric. As you know oxidation simply mean addition of oxygen, so when hypochloride (ClO-) comes in contact with fabric oxygen is added and some organic bonds are broken and the dirt is washed out.
For the second question. The melting and boiling point of pure substance is sharp. Like water has 100oC boiling point and OoC melting point. So anything from that means it has impurities in it. Just like if you make tea, you have introduce something else into the water, if you should try boiling your tea, you'll find out that the boiling point is not going to 100oC anymore. Every other liquid have their boiling point and melting point. When you know them, you'll be able to determine the purity.
Answer:
By emitting an electron and an electron antineutrino, one of the neutrons in the carbon-14 atom decays to a proton and the carbon-14 (half-life of 5,700 ± 40 years) decays into the stable (non-radioactive) isotope nitrogen-14.
Half-life: 5,730 ± 40 years
Names: carbon-14, C-14, radiocarbon
Isotope mass: 14.003241 u
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Explanation:
Isoelectronic specie are defined as the molecules which have the same number of electrons.
Atomic number of calcium is 20 and thus has 20 electrons. is formed by loss of 2 electrons and thus has 18 electrons.
Atomic number of potassium is 19 and thus has 19 electrons. is formed by loss of 1 electron and thus has 18 electrons.
Atomic number of chlorine is 17 and thus has 17 electrons. is formed by gain of 1 electron and thus has 18 electrons.
Atomic number of phosphorous is 15 and thus has 13 electrons. is formed by gain of 3 electrons and thus has 18 electrons.
As the number of electrons are same , the more is the nuclear charge i.e. the number of protons , more will the force of attraction towards the nuclei and thus smaller will be the radii and vice versa.
Thus, order of decreasing ionic radii for the given ions is as follows.
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