b) Br2 (L)
c) Ar (g)
d) Ag (s)
Answer: The correct answer is alpha particle.
Explanation:
There are 3 radioactive particles which are released in radioactive decay process:
1. Alpha particle: This particle is released when a nuclei undergoes alpha decay. The particle released has a mass of 4 units and has a charge of 2 units. The particle is positively charged.
2. Beta-particle: This particle is released when a nuclei undergoes beta decay process. The particle released has a mass of 0 units and has a charge of (-1) units.
3. Gamma radiations: These radiations are released when an unstable nuclei undergoes gamma ray emission and gives excess energy by a spontaneous electromagnetic process. The radiations does not carry any charge and has no mass.
Hence, the radioactive particle that is charged charged and has two protons and two neutrons is the alpha particle.
The volume of the gas at 127.0 °C is 321.28 ml.
The volume of any substance is the total space it occupies.
Given data is
V₁ is 400.0 mL
T₁ is 225.0ºC + 273 = 498 K
T₂ = 127.0ºC + 273 = 400 K
To find V₂
By Ideal gas law
Thus, the volume of the gas at 127.0 °C is 321.28 ml.
Learn more about volume, here:
a. F- concentration decreases
b.the dissociation constant, K, increases
c. HF concentration decreases
d. H+ concentration decreases
When gaseous hydrogen chloride is passed through a sodium chloride solution, precipitation of the sodium chloride occurs as a result of an excess of chloride ions in the solution (caused by the dissociation of HCl). Here the concentration of H⁺ decreases. The correct option is D.
When another electrolyte (which includes an ion that is also present in the first electrolyte, i.e., a common ion) is added, the common ion effect suppresses the ionisation of the first electrolyte. It is thought to be a result of Le Chatlier's principle, often known as the equilibrium law.
An increase in the concentration of one of the ions dissociated in the solution by the addition of another species containing the same ion will result in an increase in the degree of association of ions in a solution where there are several species associating with each other via a chemical equilibrium process.
Here the common ion 'F' in KF supresses the dissociation of HF.
Thus the correct option is D.
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B. The interactions is mutualistic
C. The frog is a parasite
D. The number of insects can influence the number of frogs in the ecosystem.
Filtering helps produceclean water by...
Explanation/summary/reasons:
Filtering dirty water can take away the tap water odor, heavy metals, bacteria and dirt that can cause a person to get infected or sick. Filtering can even remove the chloride inside the dirty water and reduces limescale and acid reflux and can make clean water have anti-oxidant properties in it. Filtered and clean water is better for the environment and healthier by improving skin health and healthier for making tea,coffee and healthier smoothies. Water can also enhance hydration, energy, helps get rid of headaches, reduces cardio stress and improves digestion. It even saves more money from your wallet as well!
~Hope this helps!
~Hocus Pocus