2.41 What is an ionic compound? How is electrical neutrality maintained in an ionic compound?
Answers
Answer:
Explanation:
An ionic compound is a compound in which electrovalent bonds joins the atoms together. Here, electrons move from a less electronegative atom to a more electronegative one. The formation of ionic bonds involves the transfer of elecrons.
The transfer of electrons makes the atoms charged i.e ionized. These oppositely charge ions establishes an electrostatic force of attraction to form the ionic compounds.
How is electrical neutrality maintained in an ionic compound?
Electrical neutrality is maintained in an ionic compound because the compound is made up of ions in which the net charge is zero. There is a transfer of electrons which is completely recieved by the more electronegative atom.
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Patience, a popular card game in Mendeleev's time, is also known asSolitaire.OA. TrueOB. False
Answers
Explanation:
local winds are considered breezes while global winds produce mostly storms
Answer:
Global winds blow over long distances while local wind blows over short distances
Explanation:
a. K
d. Ci
b. Ca
c. S e. Ba f. Br
Answers
Answer:
The ion is written in the attached file
Explanation:
Final answer:
The most typical ions formed by K, Ca, and S are K+, Ca2+, and S2-, respectively.
Explanation:
The symbol of the ion most typically formed by each of the elements can be determined by looking at their positions on the periodic table and considering their electron configuration.
- K (Potassium): The most typical ion formed by potassium is K+ (Potassium ion). Potassium has one valence electron in its outermost shell, and it tends to lose this electron to form a stable ion.
- Ca (Calcium): The most typical ion formed by calcium is Ca2+ (Calcium ion). Calcium has two valence electrons in its outermost shell, and it tends to lose these electrons to achieve stability.
- S (Sulfur): The most typical ion formed by sulfur is S2- (Sulfide ion). Sulfur has six valence electrons in its outermost shell, and it tends to gain two electrons to achieve stability.
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Answers
b.) 4.0 x 10-^2
c.) 2.5 x 10-^2
d.) 4.0 x 10-^13
Answers
Answer: The in a solution is
Explanation:
pH or pOH is the measure of acidity or alkalinity of a solution.
pH is calculated by taking negative logarithm of hydrogen ion concentration.
To calculate the pOH of the solution, we use the equation:
We are given:
Putting values in above equation, we get:
The in a solution is
Final answer:
The concentration of H3O+ in a solution with OH− concentration of 2.5 x 10-2 M is 4.0 x 10^-13 M, based on the relationship between H3O+ and OH− in acid-base chemistry.
Explanation:
The question asks for the concentration of hydronium ion ([H3O+]) in a solution with a hydroxide ion concentration ([OH−]) of 2.5 x 10-2 M. This falls under the topic of acid-base chemistry, where the product of [H3O+] and [OH−] is always equal to Kw, the ionic product of water.
In this case, the formula we use is [H3O+] = Kw / [OH–]. Assuming Kw is 1.0 x 10-14 (which is true at 25 degree Celsius), the calculation is [H3O+] = (1.0 x 10^-14) / (2.5 x 10^-2). The answer will be: 4.0 x 10^-13 M.
Therefore, the concentration of [H3O+] in the given solution is 4.0 x 10^-13 M, which matches option d.) 4.0 x 10^-13.
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Electrical Energy ____________________ Heat Energy
Light Energy
Mechanical Energy
Nuclear Energy
Chemical Energy
Answers
Answer: Mechanical Energy
Explanation:
According of law of conservation of energy, energy can neither be created nor be destroyed. It can only transformed from one form to another.
When electric sharpener works by using electrical energy, it is being used to drive the blades of the sharpener and is being converted to mechanical energy which is then converted to heat energy and the sharpener gets warm.
Electrical energy is the energy possessed by virtue of motion of electrons.
Mechanical energy is the energy possessed by a body by virtue of its position and motion.
Heat energy is the transfer of thermal energy from hotter body to colder body.
first the pencil sharpener gets electricity from the plug and wires
that then makes the pencil sharpener move it's motor and well, sharpen pencils
all the kinetic energy from the motor moving releases heat, making the sharpener warm