An inorganic salt hydrate (hydrated salt or hydrate) is an ionic compound in which several water molecules are attracted by the ions and therefore enclosed within its crystal lattice. The general formula of a hydrated salt is MxNy.
The correct representation of the hydrate salt has the generic formula MxNy . nH₂O.
What is hydrate salt?Hydrate salt is defined as an ionic substance where several water molecules are drawn to the ions and hence trapped inside the crystal lattice. More than 50% of chemical industry products start with salt as the primary constituent. Additionally, the glass, paper, rubber, and textile sectors employ hydrated salt.
A hydrate is a salt that has a chemical interaction with water, and its formula is salt x H₂O, where x represents how many water molecules are joined to one salt molecule. CaSO₃.3H₂0, or calcium sulfate trihydrate, is an example of a hydrate and is written in this way even though the water molecules are not technically a part of the formula.
Thus, the correct representation of the hydrate salt has the generic formula MxNy . nH₂O.
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Which of the following represents enthalpy on this graph?
Question 1 options:
1
2
3
4
exothermic reaction is reactants accomphen by evolution of heat
Which statement below is true?
The mass of each planet is different, so they each orbit their own moons.
The mass all the planets together is greater than the mass of the sun.
The mass of all planets is the same, so they all orbit the Sun.
The mass of each planet is less than that of the Sun, so they all orbit the Sun.
Answer:The mass of each planet is less than that of the Sun, so they all orbit the Sun.
Explanation:
What happens to the electrons of a reducing agent during a reaction?
Electrons are doubled
Electrons are lost
Electrons are gained
Electrons are held
Answer:
A I DID THIS BEFORE
Explanation:
What are some common isotopes of mercury?
Answer:
The three most stable isotopes of hydrogen: protium (A = 1), deuterium (A = 2), and tritium (A = 3).
Protium, the most common isotope of hydrogen, consists of one proton and one electron. ...
A deuterium atom contains one proton, one neutron, and one electron.
Explanation:
Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation: ()bao2 ()h2so4 → ()h2o2 ()baso4
Based on the chemical equation, the value of coefficient that is used in the reaction is 1.
What is balanced equation?Balanced chemical equations are those equation in which each entities are present in same amount on left side as well as on the right side of the chemical reaction.
Given chemical reaction is:
BaO₂ + H₂SO₄ → H₂O₂ + BaSO₄
Above reaction is balanced as all elements are present in same amount on both sides. So, the value of coefficients is 1.
Hence the required coefficients is 1.
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How many molecules are there in 2.3 grams NH3
Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles. We calculate as follows:
2.30 g NH3 (1 mol / 17.03 g ) (6.022 x 10^23 molecules / 1 mol ) = 8.13x10^22 molecules
Calculate the vapour density of a
diatomic gas X, if its relative mass is 16
From the information, the vapor density of gas X is obtained as 8. The vapor density is half of the relative molecular mass of the compound.
What is vapor density?The term vapor density is defines as half of the relative molecular mass of a compound. Now we have the relative molecular mass of the compound as 16.
It the follows that the vapor density of the compound must be 16/2. Hence, the vapor density of the diatomic gas X is 8.
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how many protons, neutrons and electrons? please help
Which of the following converts chemical energy to electrical energy? Question 2 options: Camp fire Person eating food Battery Automobile
Answer:
battery
Explanation:
the answer is C
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question for smart people
#a
pH+pOH=14pOH=14-9.50pOH=4.50#b
[H+] be x
-logx=9.50logx=-9.5x=10^{-9.5}x=3.2×10^-10M#c
basic as pH is 9.5>7
What is Arrhenius's definition of an acid?
a substance that dissociates in water to produce hydroxide ions (OH)
O a substance that dissociates in water to produce hydrogen ions (H+)
O any substance that can donate hydrogen ions (H+).
O
any substance that can accept hydrogen ions (H+)
Arrhenius: an acid is a substance which when dissolved in water will release H⁺ ions.
HₓY(aq) ⇒ xH⁺(aq) + Yˣ-(aq)
What is the relationship between a solution and a mixture.
Answer: In a mixture, substances are generally just mixed and are not completely dissolved. In a solution, substances are dissolved completely and they cannot be filtered out.
Explanation:
How do gravitational forces impact the motion of earth and moon?
Answer:
The Gravitational Force of the Earth and Moon on Each Other. According to Newton's Third Law of Motion, the Law of Action and Reaction, if the Earth exerts a force on the Moon, the Moon must exert an equal and opposite force on the Earth.
A reaction that involves the transfer of electrons from one molecule to another is referred to as an oxidation reaction. a redox reaction. a reduction reaction.
Answer:
Terms in this set (31) A reaction that involves the transfer of electrons from one molecule to another is referred to as. a redox reaction. During an oxidation reaction, the donor molecule loses an electron and becomes oxidized.
Explanation:
hope this helps<33
What happens during reduction?
Loss of electrons
Gain of electrons
Loss of protons
Gain of protons
Magnesium loses electrons and loss of electrons is oxidation. Copper (II) ions gain electrons and gain of electrons is reduction. Redox is when oxidation and reduction occur simultaneously in the same reaction.
Answer:
Gains of electrons
What is TVEL (nuclear fuel cycle) special features that use Nuclear Technology?
Answer:
TVEL is developing mixed-oxide (MOX) fuel and REMIX fuel, with both using recycled uranium together with plutonium. This is the dual-component approach. "We're very actively engaged in this and right now it is cost-intensive,"
Answer:
Brainliest pls
Explanation:
The nuclear fuel cycle consists of several steps: mining, milling, conversion, enrichment, fuel fabrication, and electricity generation.
What is the minimum internal cooking temperature for ground beef?.
composed of an organic matrix, which gives it tensile strength; it is composed an inorganic calcified matrix, which gives it hardness. __________ is a condition, whereby a certain amount of bone density is loss; it then involves loss of both matrices.
Bone is composed calcified matrix, which gives it hardness. The loss of this bone hardness is called Osteopenia.
Loss of bone strengthBone is an organic matrix that is highy reinforced by inorgaanic minerals such as calcium. Bone is known to be intricated laced in a calcified matrix, which gives it hardness.
The loss of this bone density and consequent loss of the rigidity of the bone is called Osteopenia.
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What would the concentration of an NaOH solution be if 25 moles were used and 50 L were used?
0.5 M
0.5 M
2 M
, 2 M
1250 M
1250 M
25 M
Answer: 0.5 M
Explanation:
Which statement is NOT true about the human sperm cell?
composed of a "head" and "tail"
one of the smallest cells in the male body
the flagella(tail) is used for motility
all of the above are true
Answer:
all of the above
Explanation:
How many moles of calcium acetate are needed to react with 5.00 moles of sodium carbonate?
Answer:
[tex]5.00 moles Ca(C_2H_3O_2)[/tex]
Explanation:
First find the chemical formula for this reaction:
[tex]Ca(C_2H_3O_2) + Na_2CO_3 - > CaCO_3 + 2NaC_2H_3O_2[/tex]
Knowing from the chemical formula that one mole of calium acetate will react with one mole of sodium carbonate can be used to find how many moles of calcium acetate react with 5.00 moles of sodium carbonate:
[tex]5.00 molNa_2CO_3 * \frac{1 molCa(C_2H_3O_2)}{1 mol Na_2CO_3} = 5.00 mol Ca(C_2H_3O_2)[/tex]
Remember that your answer needs to have three significant figures.
The central region of an atom where its neutrons and protons are is its:.
Why must chemical equations be balanced? (Choose all that apply.)
Two substances must make a new substance.
All atoms on both sides of an equation must be the same.
All atoms on both sides of an equation must be in equal amounts.
It is needed in order to add coefficients.
It will satisfy the law of conservation of mass.
Answer:
It will satisfy the law of conservation of mass.
Two substances must make a new substance.
All atoms on both sides of an equation must be the same.
Explanation:
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Particles
How many moles of water are
in 1.23x1018 water molecules?
[ ? ]x10[?]
Enter your answer with the correct
number of significant figures and be sure
the prefix is a number between 1 and 10!
а
Prefix (green)
Exponent (yellow)
Answer:
Explanation:
The moles have been the mass of the molecule that has been present with respect to the molecular mass of the compound. The number of molecules that have been present in a mole of the compound has been equivalent to the Avogadro number.
The Avogadro number has been constant with a value of 6.023 .
Thus, the number of molecules in a mole of the compound has been given by:
1 mole = 6.023 molecules
The given molecules of water have been . The moles of the water molecule has been given by:
6.023 molecules = 1 mole of water
molecules =
The moles of water have been = 2.04
Thus, the mole of water that has been consisting of molecules has been 2.04 mol.
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Some greenhouse gases, such as fluorocarbons (CFCs, HFCs, PFCs, etc. ), are human-made. Others, such as water, methane, and carbon dioxide, are naturally produced. Which type of greenhouse gas (human-made or natural) is more difficult to control and eliminate? Which types are easier? In three to five sentences, provide evidence for your argument
The green house gases are those gases that are known to prevent the escape of infrared rays.
What are green house gases?The green house gases are those gases that are known to prevent the escape of infrared rays and ultimately lead to an increase in the temperature of the earth.
These green house gases could be natural or artificial. The natural greenhouses gases are more difficult to control because they can alaso be produced in natural processess that are not subject to human control.
For instance, there are process in the ocean that produce methane and this gas is also produced by decomposition in nature. This makes the control of the gas not entirely within the control of man.
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The ideal gas law is equivalent to Charles's law when
a) volume equals 22.4 L
b)R equals 0
c)number of moles and temperature are constant
d)number of moles and pressure are constant
The ideal gas law is equivalent to Charles's law when number of moles and pressure are constant (option D)
Ideal gas equationPV = nRT
Where
P is the pressure V is the volume n is the number of mole R is the gas constant T is the temperature Charles' lawCharles' law states as follow:
V₁ / T₁ = V₂ / T₂
Where
V₁ is the initial volume T₁ is the initial temperature V₂ is the new volume T₂ is the new temperature How to relate ideal gas equation to Charles' lawPV = nRT
Divide both side by T
PV / T = nR
Divide both side by P
V / T = nR / P
Let nR / P be costant
V / T = constant
Thus,
V₁ / T₁ = V₂ / T₂
From the above illustrations, we can conclude that the ideal gas equation will become Charles' law equation if the number of mole and pressure are constant (Option D)
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Consider the following equilibrium: upper c upper o (g) plus 2 upper h subscript 2 (g) double arrow upper c upper h subscript 3 upper o upper h (g). k subscript e q equals 26. which statement about this system is true? if the equilibrium concentration of co is 3.4 × 10–1 m, and the equilibrium concentration of h2 is 6.8 × 10–1 m, the equilibrium concentration of ch3oh is
The equilibrium concentration of CH3OH will be equal to 0.089 if the equilibrium concentration of co is 3.4 × 10–1 m, and the equilibrium concentration of h2 is 6.8 × 10–1 m
What is equilibrium concentration?An equilibrium concentration is a state when the rate of forward reaction in a chemical reaction becomes equal to the rate of backward reaction
Step 1:
The balanced equation for the reaction is given below:
H2O + Cl2O <=> 2HClO
Step 2:
Data obtained from the question. This includes:
Concentration of H2O, [H2O] = 0.077 M
Concentration of Cl2O, [Cl2O] = 0.077 M
Concentration of HClO, [HClO] = 0.023 M
Equilibrium constant, K =?
Step 3:
Determination of the equilibrium constant. This is illustrated below:
The equilibrium constant for the above reaction is given below:
K = [HClO]^2 / [H2O] [Cl2O]
K = (0.023)^2 / (0.077 x 0.077)
K = 0.089
Therefore, the equilibrium constant for the above reaction is 0.089
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A student in your lab volunteers to enter a hypoxic breathing chamber for 10 minutes, and his alveolar PO2 drops to 50 mm Hg. What other change would occur
which of the following charecteristics will not help u tell whether two solids are the same or are diferent substances?
Answer:
D. Melting point
Explanation:
A. Color
B. Hardness
C. Shape
D. Melting point
In redox reactions, electrons are ____.
A)shared
B)lost
C)transferred
D)not needed
Answer:
C
Explanation:
This is the only option that gives the right option as in redox reaction electron are lost and gained by different atoms. Not shared or not needed are not right