Answer:
Option A
Explanation:
Option A - Blue litmus paper turns red under acidic conditions so this option is correct.
Option B - Acids do not turn red litmus paper red, bases are the ones responsible for that. Hence, this option is incorrect.
Option C - Acids generally taste sour due to the sour H+ ion; bases taste bitter due to the OH- ion. This option is incorrect.
Option D - This option is incorrect as acid reacts with metal, to form salt and hydrogen.
The correct student is Student D, who says that Fluorine (F) has the highest ionization energy because the smaller the atom, the stronger the attraction between protons and valence electrons.
The stronger the attraction, the more energy is needed to remove a valence electron.
Ionization energy refers to the energy required to remove an electron from an atom. Smaller atoms have a stronger attraction between the positively charged protons in the nucleus and the negatively charged electrons in the outermost energy level. As a result, it takes more energy to remove an electron from a smaller atom like fluorine. This is because the electrons are held more tightly due to the stronger attraction.
So, the reasoning provided by Student D correctly explains why Fluorine has the highest ionization energy among Selenium (Se) and Fluorine (F).
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I think the Answer is C because Flourine is stronger in electron attraction and is smaller so it has a stronger electronic pull. Hope this helps :)
Radioactive elements are the unstable nuclei of the atoms that release energy and radiation. The atomic number remains the same in case of the gamma radiation.
Gamma radiations are the particles that are released when the unstable atom undergoes decay and emits charged particles. These rays have no effect on the atomic mass and number of the atom.
These rays only emitenergy whereas alpha and beta decay produces energy and newparticle. An excited nucleus emits energy in the case of gamma decay that is unlike the other two decays.
Therefore, there is no change in the atomicnumber in gamma decay.
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Answer: It actually remains the same.
Explanation: Gamma radiation does not affect the atomic number or the atomic mass.
Answer: 154.09 g
Explanation:
3 Mg + 2 FeCl3 = 3 MgCl2 + 2 Fe
The mass of MgCl2 produced is calculated:
m MgCl2 = 175 g FeCl3 * (1 mol FeCl3 / 162.2 g) * (3 mol MgCl2 / 2 mol FeCl3) * (95.21 g MgCl2 / 1 mol) = 154.09 g
There are 17 known types of elementary particles which include quarks, leptons, and force carriers. Composite particles, such as protons and neutrons, derived from these elementary particles, add to the variety of particles. The total count may change as our understanding of physics evolves.
When we talk about different kinds of particles in the world, we're usually referring to elementary particles, of which there are currently 17 types understood by scientists. These include six types of quarks, six types of leptons, and five types of force carriers (the photon, three types of W and Z bosons, and the gluon). Additionally, there is the Higgs boson, responsible for giving particles their mass. However, it's essential to also consider composite particles, such as protons and neutrons, made up from quarks. The exact number of particle types can be hard to quantify due to discoveries of new particles and our ever-evolving understanding of physics.
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b. The products of chemical reactions are more stable at higher concentrations.
c. At higher concentrations, reactant molecules move more quickly.
d. At higher concentrations, product molecules are able to catalyze the reaction.
Answer
A!! A jogger sweating after a run
Explanation:
Edge