The energy released in this nuclear reaction involving 32Cl (chlorine-32) can be determined by calculating the difference in binding energies of the initial and final products. However, I would need more information about the specific reaction to provide an accurate answer. Please provide the complete reaction, including the reactants and products.
About nuclearNuclear power is the controlled use of nuclear reactions to produce heat energy, which is used to generate electricity. The use of nuclear energy for human purposes is currently still limited to nuclear fission reactions and radioactive decay.
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what is the coordination number around the central metal atom in ammonium diaquabis(oxalato)nickelate(ii) ((nh₄)₂[ni(c₂o₄)₂(h₂o)₂])?
The coordination number around the central metal atom in ammonium diaquabis(oxalato)nickelate(II) is 6.
In the given compound, ammonium diaquabis(oxalato)nickelate(II), the nickel (Ni) ion is the central metal atom. The coordination number refers to the number of ligands (atoms or molecules) that are directly bonded to the central metal atom. In this case, there are two oxalate ligands (C₂O₄²⁻) and two water ligands (H₂O) bonded to the nickel ion, resulting in a coordination number of 6.
Each oxalate ligand contributes two oxygen atoms, and each water ligand contributes one oxygen atom, giving a total of six ligands surrounding the central nickel atom.
Therefore, in the compound ammonium diaquabis(oxalato)nickelate(II), the central metal atom has a coordination number of 6.
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Place the events of early european and asian trade in chronological order.1. Chinese traders established strong trade routes around the world2. Europeans wanted access to Chinese commodities3. China demanded gold as payment form European countries4. European countries plundered the Americas for gold
The chronological order of events in early European and Asian trade are:
Chinese traders established strong trade routes around the worldEuropeans wanted access to Chinese commoditiesChina demanded gold as payment form European countriesEuropean countries plundered the Americas for goldThe early European and Asian trade was characterized by the establishment of strong trade routes by the Chinese traders. This was a result of their desire to access Chinese commodities that were highly valued. In exchange for these goods, European countries were required to pay in gold which was seen as a valuable commodity by the Chinese.
As a result the European nations plundered the Americas in search of gold to trade with the Chinese. The events that took place in early European and Asian trade illustrate the significance of trade and commerce in the history of human civilization.It emphasizes the human desire for riches, power & status as well as the extent people will go to attain these things.
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explain why real molecules like water and ammonia have bond angles of 104.5o and 107o instead of 109.5o.
Answer:
This is because of the lone pairs present in the molecules. Bond and lone pairs of electrons have maximum mutual repulsion but lone pairs of electrons have a stronger mutual repulsion than bond pairs thus creating a bent or v shape in water and trigonal pyramidal shape in ammonia.
There are 4 pairs of electrons in water. if all were bond pairs then the bond angle would be 109.5 but because of the the two lone pairs you take away 2.5 per lone pair from 109.5. Same goes to ammonia if they were all bond pairs then it would be 109.5 but because of the one lone pair it becomes 107.
Explanation:
How are radioisotopes used in radiation therapy for cancer?
A. to detect unusual cells
B. to strengthen normal cells
C. to kill fast-growing cells
Answer:
The liquid radiation targets cancerous cells while causing minimal damage to surrounding healthy cells.
If 6.4 g solid carbon dioxide were placed in the same container but it already contained air at 740 torr, what would be the partial pressure of carbon dioxide, PCO2
Given data
Mass of the piece of a solid carbon dioxide is m = 6.8 g
Volume of the solid carbon dioxide is V=4L
The temperature is T = 23°C = 296 K . The pressure of the air in the container is
740 Pho = 740 torr = atm 76
The temperature is T = 23 deg * C = 296K
The pressure of the air in the container is
Pho = 740 torr 740 760 atm
(a)The expression of ideal gas equation is given by,
PV = nRT
PV = (m/M) * RT
Where, P is the pressure in which the container after all the carbon dioxide is vaporizes.
M is the molar mass of the solid carbon dioxide (M = 44.01g / m * ol)
R is the universal gas constant R = (0.0832kJ / m * olK)
Substitute the all values in the above equation and calculate the value of pressure in which the container after all the carbon dioxide is vaporizes.
6.8 g 44.01 g/mol P(4L)= P= (0.0832 kJ/mol K) (296 K) (0.1545 mol) (0.0832 kJ/mol K) (296 K)
P = 0.951atm
(4L)Thus, the pressure in which the container after all the carbon dioxide is vaporizes is 0.951 atm.
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A certain metal crystallizes in a body-centered cubic arrangement and has a density and atomic radius of 0.9710 g/cm3 and 185.5 pm, respectively. What is the atomic number of this element?
B)
Cesium metal, Cs, crystallizes in a body-centered cubic arrangement. What is the density of Cs, if its atomic radius is 267.2 pm?
C)
Lead metal, Pb, crystallizes in a face-centered cubic arrangement. What is the radius (in picometers) of one atom of lead, if its density is 11.35 g/cm3?
A) To determine the atomic number of the metal that crystallizes in a body-centered cubic arrangement, we can use the formula:
Density = (2 * Atomic Mass) / (a^3 * Avogadro's Number)
where 'a' is the edge length of the cubic unit cell.
Given that the density is 0.9710 g/cm^3 and the atomic radius is 185.5 pm (1 pm = 10^-12 m), we can find the edge length 'a' using the relationship:
a = 4 * r / sqrt(3)
where 'r' is the atomic radius.
Substituting the given values, we find:
a = (4 * 185.5 pm) / sqrt(3) = 339.83 pm
Next, we can calculate the atomic mass:
Density = (2 * Atomic Mass) / (a^3 * Avogadro's Number)
Solving for the atomic mass:
Atomic Mass = (Density * a^3 * Avogadro's Number) / 2
Substituting the values:
Atomic Mass = (0.9710 g/cm^3 * (339.83 pm)^3 * 6.022 x 10^23) / 2 = 94.9 g/mol
The atomic number of the element can be determined by looking up the element with the closest atomic mass value of 94.9 g/mol, which is Technetium (Tc) with an atomic number of 43.
B) To calculate the density of Cesium (Cs), we can use a similar approach as in part A.
Given that the atomic radius is 267.2 pm, we can find the edge length 'a' of the body-centered cubic (BCC) unit cell:
a = 4 * r / sqrt(3) = (4 * 267.2 pm) / sqrt(3) = 489.75 pm
Next, we can calculate the density:
Density = (2 * Atomic Mass) / (a^3 * Avogadro's Number)
Solving for the density:
Density = (2 * Atomic Mass) / (489.75 pm)^3 * 6.022 x 10^23) = 1.93 g/cm^3
Therefore, the density of Cesium (Cs) is approximately 1.93 g/cm^3.
C) To find the radius of one atom of lead (Pb), we can use the relationship between density, atomic mass, and atomic radius.
Given that the density is 11.35 g/cm^3, we can calculate the molar volume:
Molar Volume = Atomic Mass / Density
Solving for the atomic mass:
Atomic Mass = Molar Volume * Density
Molar Volume can be calculated using the formula for the volume of a face-centered cubic (FCC) structure:
Molar Volume = (4 * Atomic Radius^3) / (3 * sqrt(2))
Substituting the values:
11.35 g/cm^3 = (4 * (Atomic Radius)^3) / (3 * sqrt(2)) * (10^-12 m)^3 * 6.022 x 10^23
Simplifying the equation and solving for the atomic radius:
Atomic Radius = (11.35 g/cm^3 * 3 * sqrt(2) / (4 * 6.022 x 10^23))^1/3 * (10^12 pm) = 175.8 pm
Therefore, the radius of one atom of lead (Pb) is approximately 175.8 pm.
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Which value is equivalent to 660.3 °C on the Kelvin temperature scale?
349.06 K
1,220.54 K
933.45 K
387.15 K
The difference between a kelvin (K), which is a division of the kelvin scale, and a degree on the Celsius scale is where zero is. The zero point on the Kelvin scale is at absolute zero, whereas the zero point on the Celsius scale is the freezing point of water. As a result, 0oK equals -273.15oC and 0oC equals 273.15 kelvins.
Answer : C.933.45K
How come 0 C is 273 Kelvin?At 0 degrees Celsius, or 273 Kelvin, water freezes. Also, -273 degrees Celsius are the same as 0 Kelvin. Therefore, multiply the Celsius degree by 273 to convert it to Kelvin. And to convert from Kelvin to Celsius, just take 273 out.
Celsius to Kelvin conversion: Kelvin = Celsius + 273 1.5. The figure of 273 is also used instead of 273.15
Solution :
K = ° C + 273.15
K = 660.3 + 273.15
K = 933.45
Answer :660.3°C = 933.45k
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Which solution will provide the LOWEST freezing point? Group of answer choices 1.2 M MgCl2 1.60 M KI 1.0 M Na2CO3 1.5 M NaCl
Answer:
KI 1.0 M
Explanation:
Freezing point of a substance is a colligative property. This means that it depends on the amount of substance present is the system.
The freezing point is given by; T - Ta = K * m * i
Where;
T = freezing point of the pure solution
Ta = freezing point of the solution containing the solute
K = freezing point constant
m = molality of the solution
i= Van't Hoff factor
If we look at all the options provided, KI has only two particles in solution and a molality of 1.0 m hence it should exhibit the lowest freezing point of solution.
Volcanoes are most closely related to which type
Answer:
Hey mate.....
Explanation:
This is ur answer.....
Volcanoes are closely associated with plate tectonic activity. Most volcanoes, such as those of Japan and Iceland, occur on the margins of the enormous solid rocky plates that make up Earth's surface.
Hope it helps!
Brainliest pls....
Follow me! ;)
Answer:
They are closely related the most to Plate Tectonics. They're usually at Convergent plate boundaries.
Explanation:
Hope this helped! Sorry if I'm wrong.
-Bella
PLEASE HELPPP! THANKKK YOUUU!!!!
Answer:
Electrons are discharged by the positive ions on the skin surface.
What was one main point of Dalton’s atomic theory
Answer:
Everything is composed of atoms! which are the indivisible building blocks of matter and cannot be destroyed. All atoms of an element are identical. The atoms of different elements vary in size and mass.
Explanation:
Hope this helped
Answer:
John Dalton in 1808 put forward a theory known as Dalton's atomic theory. The main points of this theory are 1)Matter is made up of extremely small indivisible particles called atoms. 2) Atoms of the same element are identical in all respect i.e. shape, size, and mass.... 8)An atom can neither be created nor destroyed.
Explanation:
significant figures to 2.3 x 4.50
Answer:
10.35= 4 sig figs but change it to 2 since it's 2.3 is the lowest number
10.
hope this helps
have a good day :)
Explanation:
A boundary between air masses that don't move possibly causing rain for several days.
Answer:
A Front
Explanation:
A Front is a boundary between two air masses of different density, moisture, or temperature
chloride per milliliter (MW of CaCl2 = 147) [Round to the nearest whole number 5. What weight of magnesium chloride (MgCl2, formula weight = 95.3) is required to prepare 200 ml solution that is 5.0 mi
The weight of magnesium chloride required to prepare the 200 ml solution that is 5.0 M is approximately 48 grams.
To calculate the weight of magnesium chloride (\(MgCl_{2}\)) required to prepare a 200 ml solution that is 5.0 M, we need to use the formula: Weight (in grams) = Volume (in liters) × Concentration (in moles/liter) × Molecular Weight (in grams/mole)
First, we convert the volume from milliliters to liters by dividing it by 1000: Volume = 200 ml ÷ 1000 = 0.2 L. Next, we multiply the volume, concentration, and molecular weight: Weight = 0.2 L × 5.0 mol/L × 95.3 g/mol = 47.65 grams
Rounding to the nearest whole number, the weight of magnesium chloride required to prepare the 200 ml solution that is 5.0 M is approximately 48 grams.
This calculation ensures that the desired concentration is achieved by accurately measuring the appropriate amount of magnesium chloride, taking into account its molecular weight and the desired volume of the solution.
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What element has more electrons than sodium, but less electrons than aluminum?
Answer: Magnesium
Explanation:
Sodium, number of electrons= 11
Aluminum, number of electrons= 13
Magnesium, number of electrons= 12. which is greater than sodium but less than aluminum.
What can slow down a chemical reaction
Answer:
you can slow it down with a time machine
Explanation:im js different
Vincent dissolves 6.5 g of bromic acid, HBrO3, to prepare 600.0 mL of solution. Calculate the concentration of the acid Vincent produced.
Answer: The concentration of the acid Vincent produced is 0.083 M.
Explanation:
Given: Mass = 6.5 g
Volume = 600.0 mL (1 mL = 0.001 L) = 0.6 L
Moles is the mass of substance divided by its molar mass. So, moles of bromic acid (molar mass = 128.91 g/mol) are calculated as follows.
\(Moles = \frac{mass}{molar mass}\\= \frac{6.5 g}{128.91 g/mol}\\= 0.05 mol\)
Molarity is the number of moles of a substance present in liter of a solution.
Therefore, molarity (concentration) of the given solution is calculated as follows.
\(Molarity = \frac{no. of moles}{Volume (in L)}\\= \frac{0.05 mol}{0.6 L}\\= 0.083 M\)
Thus, we can conclude that the concentration of the acid Vincent produced is 0.083 M.
The reaction between team and red hot iron i reverible reactionwhat i meant by thi tatement?
The reaction between team and red hot iron is reversible reaction means that the process can be reversed. Iron oxide will be converted back to iron if the hydrogen produced is not eliminated. As a result, the reaction can keep on.
The reaction between team and red hot iron:
3Fe + 4H₂O ⇋ Fe3O₄+ 4H₂
The reaction between team and red hot iron is reversible because the generated iron oxide is reduced back to iron if the hydrogen is not removed, this process is reversible.
Iron is not particularly reactive at ambient temperature, therefore this reaction only happens when it is red hot (room temperature).
As a result, alkali metals have the ability to react with water to produce hydrogen gas. However, because iron is only moderately reactive, it cannot react with water at room temperature.
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deduce the formula of selenide
A cube of wood with a density of 0. 780 g/cm 3 is 10. 0 cm on each side. When the cube is placed in water, what buoyant force acts on the wood? (water density = 1. 00 g/cm3).
The buoyant force of a wooden cube with a density of 0.780 g/cm³ is 10.0 cm on each side is 7.644 N.
Archimedes' law is a law that states that any object that is partially or completely submerged in a liquid, or some liquid, has an upward thrust on the object, or what is often called a buoyant force.
The formula for buoyancy is:
B = ρ(water) x V x g
First, we calculate the mass of the wood:
Mass of wood = density of block x volume of the block
The mass of the wood = 0.780 x 10³
The mass of the wood = 0.780 x 1000
The mass of the wood = 780 g
The mass of the wood= 0.78 kg
The buoyant force is:
B = ρ water x V x g
B = 1.00 x 0.78 x 9.8
B = 7.644 N
So, the buoyant force on the wood = 7.644 N
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A source of electromagnetic radiation produces infrared light. Which of the following could be the wavelength of the light?
A. 34.5 micrometers
B. 4.7 centimeters
C. 0.1 nanometers
D. 66.8 meters
E. 3.0 nanometers
Answer:
A source of electromagnetic radiation produces infrared light. Which of the following could be the wavelength of the light?
Explanation:
A. 34.5 micrometers
B. 4.7 centimeters
C. 0.1 nanometers
D. 66.8 meters
E. 3.0 nanometers
its b
Answer:
A 34.5 micrometers. That is the answer.
Please help it’s due today, I will give brainliest
the two middle ones is the answer
Question 2 of 30
A television commercial shows happy people while describing some medical
symptoms. These symptoms include feeling tired and sad. The medication
being advertised by the commercial was approved by the FDA to treat a
disease that causes these symptoms. The narrator says that it is available by
prescription only and contains 1% of the active ingredient. What can you infer
about this medication?
OA. The people in the commercial are happy because they were
treated by the medication.
B. The medication would be more effective if it contained 10% of the
active ingredient.
C. Anyone who has the symptoms should request a prescription
from his or her doctor.
D. The medication can treat people who have the disease described.
The medication can treat people who have the disease described. According to the commercial, the drug has FDA approval to treat a condition whose symptoms are listed.
Additionally, the narrator notes that the medication only comes with a prescription and has 1% of the active substance. We can deduce from this information that the drug can effectively treat persons who have the condition generating these symptoms, but obtaining it requires a prescription. The commercial provides no support for the other possibilities.
Therefore, the correct option is D.
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What does a chemical equation do?
Answer:
A chemical equation shows the starting compound(s)—the reactants—on the left and the final compound(s)—the products—on the right, separated by an arrow. In a balanced chemical equation, the numbers of atoms of each element and the total charge are the same on both sides of the equation.
Answer:
chemical equation and chemical reaction
Explanation:
chemical equation is the symbolic representation Of a chemical reaction in the form of symbols
If you dissolve 0. 3 moles of hbr in 1 l of water, what do you expect to be present in the beaker after the compounds have had time to react?
a. H2Br, OH^-, and H2O
b. H3O^+, Br^-, and H2O
c. BrOH and H3O^+
d. HBr, H3O^+, Br^-, and H2O
After the chemicals had a chance to react, the components HBr, H₃O⁺, Br⁻, & H₂O will anticipate being present in the beaker. Hence, the correct choice is option D.
Generally, water and the diatomic molecule hydrogen bromide (HBr) combines together to form the caustic acid also known as hydrobromic acid. The pH of HBr is usually 0.21. Generally a very acidic environment with corrosive liquid (HBr) are produced when an extremely poisonous and miscible in water gets compressed gases bromine is dissolved into the water.
Generally, HBr is soluble in water because of its ability to form interparticle hydrogen bonds with water. In HBr, usually a dipole forms because of the disparity in electron density between H and Br. Hence, option D is correct.
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Which of the below is NOT TRUE about ionic and covalent bonds.
Question 3 options:
Ionic bonds are stronger than covalent bonds.
Covalent bonds are stronger than ionic bonds.
Ionic bonds form salts that may rapidly dissolve in water.
Ionic bonds exchange electrons while covalent bonds share electrons.
Which of the below is NOT TRUE about ionic and covalent bonds.
Answer : Ionic bonds are stronger than covalent bonds.
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2.48925 C : 3.9901 H : 1.000 0 The ratio does not give whole numbers, so we have to use a multiplier. What can we multiply each element by in order to have them all reach the smallest whole number?
multiply by
[ ? ]
Hint: The multiplier should be a whole number.
20,000 is the correct answer
What is empirical formula ?
The empirical formula of a chemical compound is the simplest ratio of the number of atoms of each element present in a compound. It represents the smallest whole number ratio of the elements in a compound and gives an indication of the relative proportions of the elements. The empirical formula is not necessarily the same as the molecular formula, which represents the actual number of atoms in a molecule. The molecular formula may be a multiple of the empirical formula and can be determined by analyzing the compound's molecular weight.
Multiply each by 20,000, then we have
C: 2.48925 x 20,000 = 49,785
H: 3.9901 x 20,000 = 79,802
O: 1.000 x 20,000 = 20,000
Multiply each element by in order to have them all reach the smallest whole number will be 20,000.
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Answer: The answer is 2
Explanation:
How many valence electrons do atoms need to be stable? What is the exception?
What is the∆S° of 0₂
Answer:0
Explanation: zero because it is the most stable form of oxygen in its standard state
What is the domain of the function of x containing four ordered pairs of the form (x, y) (1,3); (2,4); (5,7); (6,8)
The domain of the reactant function is the set of all x-values from the ordered pairs given. Therefore, the domain of the function is {1, 2, 5, 6}.
The domain refers to the set of all possible input values of a function. In this case, the given function contains four ordered pairs of the form (x, y) (1,3); (2,4); (5,7); (6,8). To find the domain, we simply need to list all the x-values from the ordered pairs, which are 1, 2, 5, and 6. Therefore, the domain of the function is {1, 2, 5, 6}.
The domain of the function is {1, 2, 5, 6}.
1. Look at the x-values of the given ordered pairs: 1, 2, 5, and 6.
2. Combine them into a set: {1, 2, 5, 6}.
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