Answer:
I think it's replacement because the B and D just swap places in the end equation
Answer:
that would be replacment
Explanation:
if you look at the formula the B and D are replaced with each other
synthesis is when it looks like A+B--> AB
decompositions looks like AB--> A+B
and oxydation is when the states of atoms are changed so it would include things like +1, -1 etc
Please answer the following question using the data below: H2O vapor content: 13 grams H2O vapor capacity: 52 grams at 25 degrees Celsius 13 grams at 10 ∘
C 52 grams at 30 ∘
C What is the dew point for the conditions listed above? LCL 3π5 25C Relative Humidity =100%
Given data:H2O vapor content: 13 gramsH2O vapor capacity: 52 grams at 25 degrees Celsius 13 grams at 10∘C52 grams at 30∘CFormula used to find the dew point:$$\dfrac{13}{52}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$\frac{1}{4}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$
Where A is the constantDew Point:It is the temperature at which air becomes saturated with water vapor when the temperature drops to a point where dew, frost or ice forms. To solve this question, substitute the given data into the formula.$$13/52=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$13(17.27-A)=3\pi A(ln100)$$By simplifying the above expression, we get$$A^2-17.27A+64.78=0$$Using the quadratic formula, we get$$A=9.9,7.4$$
The dew point is 7.4 since it is less than 10°C.More than 100:The term "More than 100" has not been used in the question provided.
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A photon of light with a frequency of 2.74 x 1014 Hz collides with an electron. How much energy
does the electron absorb?
Answer:
1.82x10⁻¹⁹Joules is the energy of the photon that is absorbed by the electron.
Explanation:
The energy of a photon is given by the equation:
E = h×ν
Where E is energy of the photon in Joules.
h is Planck's constant (6.6262x10⁻³⁴Js)
And ν is frequency of the photon (In Hz = s⁻¹)
The frequency of the photon is 2.74x10¹⁴Hz. That means its energy is:
E = 6.6262x10⁻³⁴Js × 2.74x10¹⁴s⁻¹
E =
1.82x10⁻¹⁹Joules is the energy of the photon that is absorbed by the electron
How many atoms are in 14 moles of I? Watch your significant figures.
A. 8.4 x 10^24 atoms of l
B. 8.43 x 10^24 moles of l
C. 8.4 x 10^23 atoms of I
D. 8.43 atoms of l
Answer:
8.43 x 1024 moles of I
Explanation:
The molar mass of Na2SO4 is
142.04 g/mol.
What is the mass of 4.54 moles of
Na2SO4?
[?] g Na2SO4
The mass of 4.54 moles of Na₂SO₄, given that it has a molar mass of 142.04 g/mol is 644.77 grams
How do I determine the mass of Na₂SO₄?We know already that the mole of a substance is related to it's mass and molar mass according to the following equation:
Mole = mass / molar mass
Applying the above formula, we can obtain the mass of 4.54 moles of Na₂SO₄. This is illustrated below:
Molar mass of Na₂SO₄ = 142.02 g/mol Mole of Na₂SO₄ = 4.54 molesMass of Na₂SO₄ = ?Mole = mass / molar mass
4.54 = Mass of Na₂SO₄ / 142.02
Cross multiply
Mass of Na₂SO₄ = 4.54 × 142.02
Mass of Na₂SO₄ = 644.77 grams
Thus, the mass of 4.54 moles of Na₂SO₄ is 644.77 grams
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When mass is "destroyed", what is released?
Mass can neither be created nor destroyed.
What is mass?Mass is described as the quantity of matter in a physical body. It can also be a measure of the body's inertia, the resistance to acceleration when a net force is applied.
The law of conservation of mass helps us to understand that mass can neither be created nor destroyed, although it may be rearranged in space, or the entities associated with it may be changed in form.
According to the law of conservation of mass, the mass of the reactants must be equal to the mass of the products for a low energy thermodynamic process.
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Atoms become ions by ____________ or _______________ electrons to become _____________.
Answer:
gaining or losing to become ions or to become positive/negative
1. the moderns periodic table, elements are ordered
a. according to decreasing atomic mass
b. according to mendeleev's original design
c. according to increasing atomic number
Answer:
In the modern periodic table, the elements are listed in order of increasing atomic number. The atomic number is the number of protons in the nucleus of an atom In a periodic table arranged in order of increasing
Which table shows a proportional relationship between x and y? Responses x 2 4 7 8 y 6 10 21 24x 2 4 7 8 y 6 10 21 24 , x 4 7 8 10 y 2 3. 5 4 5x 4 7 8 10 y 2 3. 5 4 5 , x 40 50 60 90 y 8 10 14 18x 40 50 60 90 y 8 10 14 18 , x 1 2 3 4 y 6 8 10 12x 1 2 3 4 y 6 8 10 12 ,
The table that shows a proportional relationship is given as follows:
x: 4 7 8 10
y: 2 3.5 4 5
Proportional Relationship:
A proportional relationship is a relationship between two variables with equal proportions. Another way to think about them is that in a proportional relationship, one variable is always a constant value multiplied by another variable. This constant is known as the "proportional constant".
Direct Proportional Relationship:
This type describes a direct relationship between two quantities. Simply put, when one value increases, the other value also increases and vice versa.
For example, when a car speeds up, it travels a longer distance in a given amount of time. In notation, a direct proportion is denoted by y ∝ x.
Inverse Proportional:
This type describes an indirect relationship between two quantities.
Simply put, when one value increases, the other value decreases and vice versa y ∝ 1/x. For example, by increasing the speed of a car, it can travel a fixed distance in less time.
Based on the Question:
For proportional ratios, the ratio between the output and input variables must be constant for all values in the table, so the correct option is given in the third table as
2/4 = 0.5.
3.5/7 = 0.5.
4/8 = 0.5.
5/10 = 0.5.
and the ratio equation: y = 0 and 5 times.
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CO2 in beer is increased after fermentation by two different methods, what are they
The two main methods used to increase CO2 levels in beer after fermentation are natural carbonation and forced carbonation.
Natural carbonation involves adding a small amount of sugar to the beer before bottling or kegging. The residual yeast in the beer will consume the sugar, producing CO2 as a byproduct, which will dissolve into the beer, naturally carbonating it. This process can take anywhere from a few days to a few weeks, depending on the beer style and temperature.
Forced carbonation, on the other hand, involves using a CO2 tank to directly inject carbon dioxide into the beer. The beer is placed in a closed vessel and pressurized with CO2 until the desired level of carbonation is reached. This method is much quicker and more precise than natural carbonation, but it requires specialized equipment and can be more expensive.
Both methods have their advantages and disadvantages, and many breweries use a combination of both to achieve the desired level of carbonation for their beers. The level of carbonation can greatly affect the taste and mouthfeel of the beer, so it is an important consideration for brewers to get right.
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he [Mn(NH3)6]2+ ion is paramagnetic with five unpaired electrons.
Is the NH3 ligand inducing a strong or weak field?
The [Mn(NH₃)₆]²⁺ ion is paramagnetic with five unpaired electrons, indicating a weak field ligand. Weak field ligands have less electron pairing due to a smaller energy difference between d orbitals, allowing more unpaired electrons to be present.
It indicates the presence of unpaired electrons. The number of unpaired electrons suggests that the complex has a high spin state. In octahedral complexes, the strength of the ligand field determines the degree of electron pairing and the spin state.
In this case, since the complex has five unpaired electrons, it indicates a weak field ligand. Weak field ligands do not strongly interact with the metal center, resulting in a smaller energy difference between the d orbitals. This smaller energy difference leads to less stabilization of the electrons, allowing more of them to remain unpaired.
Therefore, the NH₃ ligand in [Mn(NH₃)₆]²⁺ is inducing a weak field, which is consistent with the presence of five unpaired electrons in the paramagnetic complex.
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An unknown substance is placed in a graduated cylinder of water. The substance immediately sinks to the bottom. What could the density of the substance be?
If a liquid is less dense than the liquid it is placed in, it will float. An unidentified material is added to a graded water cylinder. The stuff hits the bottom right away. Mass/volume equals density.
When placed in water, an object will float if its density is lower than that of the water, whereas it will sink if its density is higher. The density of a material is a distinguishing quality that is independent of the substance's volume. This assertion is supported by the Archimedes principle. This is due to the fact that the buoyant force pulling on the object is smaller than its weight. The object floats on the liquid's surface if its density is less than or equal to that of the liquid.
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express 3.81 meters in inches
Answer:
150 inches.Explanation:
3.81 m. = 150 inches.
I can't find explanation. Hope this is my best!
Explain the role light plays on the rate
of photosynthesis.
Answer:
The process of photosynthesis occurs when green plants use the energy of light to convert carbon dioxide (CO2) and water (H2O) into carbohydrates. Light energy is absorbed by chlorophyll, a photosynthetic pigment of the plant, while air containing carbon dioxide and oxygen enters the plant through the leaf stomata.
At high temperatures, xenon gas will combine directly with fluorine gas to produce solid xenon tetrafluoride. what is the unbalanced chemical equation for this process.
At high temperatures, xenon gas will combine directly with fluorine gas to produce solid xenon tetrafluoride (XeF4). The chemical reaction can be represented using an unbalanced chemical equation as follows: Xe(g) + F2(g) → XeF4(s).
In the given equation, Xe(g) is the chemical symbol for xenon gas, F2(g) is the chemical symbol for fluorine gas, and XeF4(s) is the chemical formula for solid xenon tetrafluoride. The reaction is a synthesis reaction, as two reactants combine to form a single product.The unbalanced chemical equation above needs to be balanced to satisfy the law of conservation of mass. The law of conservation of mass states that the mass of the reactants must be equal to the mass of the products in a chemical reaction.To balance the chemical equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. We can balance the equation as follows:Xe(g) + 2F2(g) → XeF4(s)In the balanced equation, there are 1 xenon atom, 4 fluorine atoms, and 1 solid xenon tetrafluoride molecule on both sides of the equation. Thus, the equation is balanced.The balanced equation shows that 1 mole of xenon reacts with 2 moles of fluorine gas to produce 1 mole of solid xenon tetrafluoride. The reaction is highly exothermic and produces a lot of heat.
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suppose two lewis structures exist for the same molecule. what would you be looking for in the formal charges that would help you determine which lewis structure is more likely?
When comparing two Lewis structures for the same molecule, one should look for the structure with minimized formal charges, lesser formal charges on individual atoms, a balanced distribution of formal charges, and consideration of electronegativity to determine which Lewis structure is more likely or preferred.
Minimized formal charges are where one should look for the Lewis structure that minimizes the overall sum of formal charges on the atoms. Structures with zero or near-zero formal charges on most atoms are usually more stable. One should compare the individual formal charges on atoms. Structures with smaller absolute values of formal charges (e.g., -1, 0, +1) are generally more favorable than structures with larger formal charges. If formal charges are evenly distributed, rather than concentrated on a single atom or localized region, the structure is typically more stable.
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The Mineral Zinc
I Need Box 1 and box 2 filled out in the slide
NO LINKS
Answer:
What artifacts did historian Tom Garner find in the Pensacola Bay area?
Fork from Hernando de Soto ship
Plate from Jamestown colony
Olive jar from Tristan de Luna colony of 1559
Telescope from Ponce de Leon
Explanation:
What artifacts did historian Tom Garner find in the Pensacola Bay area?
Fork from Hernando de Soto ship
Plate from Jamestown colony
Olive jar from Tristan de Luna colony of 1559
Telescope from Ponce de Leon
Give an example of a decomposer, and explain what would happen if decomposers were absent from a forest ecosystem. Provide evidence to support your claim and explain your reasoning
Answer: Bacteria, some insects, and fungal species are the decomposers of the dead and decaying matter.
Explanation:
The decomposers are the organisms which act and feed on the dead and decaying organic matter so as to obtain energy from it and degrade it to the simple forms that can be utilized by the plants. Bacteria, some insects and fungi that live in the soil and on the decaying matter. The fungi for example decay on the lignin present in the wood so helps in wood decomposition of trees. If the decomposer like fungi are absent the wood mass will not decompose and it will remain as waste and can be used by the plants in the form of nutrients.
The Plimsoll mark is placed on the side of all large commercial ships. After
reading this article and looking at the modern Plimsoll mark, why do you
think there are so many different marks for water at different levels?
Use the balanced equation to solve the problem.N2 + 3H22NH323.0g NH3 are made.How many liters of H₂ gas reacted at Stp? L
By using the ideal gas law to get volume we have"
\(V=\frac{nRT}{P}\)Where v is volume, T is temperatute, n is number of moles, R is the molar gas constant and P is pressure. At STP P= 101,325 Pa, T= 273.15 K and R= 8.314 J/mol K
\(\begin{gathered} \frac{RT}{P}=0.022414cm^3mol^{-1} \\ \\ V=0.0022414n \end{gathered}\)We must first convert mass to moles:
\(\begin{gathered} mole=\frac{mass}{molecular\text{ }mass} \\ mole=\frac{23.0g}{17.0g\text{ }mol^{-1}} \\ \\ mole=1.35 \end{gathered}\)\(To\text{ }determine\text{ }the\text{ }moles\text{ }of\text{ }H2\text{ }gas\text{ }reacted\text{ }we:\frac{2}{3}\times1.35=0.87\text{ }mol\)By substituting this value into the ideal gas law we have:
\(\begin{gathered} V=0.0022414cm^3mol^{-1}\times0.87mol \\ V=0.0019502cm^3 \\ \\ V=1.9502\times10^{-6}L \end{gathered}\)1.9502e-6L of H2 gas reacted at STP
Wood is burned in a campfire. Determine the type(s) of energy present before and after the reaction.
Answer: when you burn something every action has a reaction. so if you put wood in the fire the wood would burn up into this coal like block once completely burnt through. after there is no more wood left to burn the fire would slowly die and there would just be the remains of the wooden block.
Monday
m
Use the green plane to answer questions 1-3
E
B
F
ח
С
1) What are 2 ways you can name the plane?
a) be
b) BE
2) How dle can you name line FE? (Bonus: Can you think of another way?)
EF
3) Name 3 points on the plane.
For your experiment in part B, which factors would you keep constant?
Heating Different Amounts of a Substance
Help ASAP If you know what to do comment if u don’t I’ll report you ! Points added
Proton:
Positive
Found in Nucleus
Mass of 1 AMU
Neutron:
Neutral
Found in Nucleus
Mass of 1 AMU
Electron:
Negative
Found in orbitals
Mass of 0 AMU
What is the coefficient for water molecules in the balanced version of the following redox reaction? cr2o2−7 c2h4o→c2h4o2 cr3
The given redox reaction is:
Cr2O7^2- + C2H4O → C2H4O2 + Cr3+
To balance this reaction, we first balance the oxygen atoms by adding H2O on the right side of the equation. The number of H2O molecules added depends on the number of oxygen atoms needed. In this case, we need three O atoms on the right side, so we add three H2O molecules to the right side of the equation:
Cr2O7^2- + C2H4O → C2H4O2 + Cr3+ + 3H2O
Next, we balance the hydrogen atoms by adding H+ ions on the left side of the equation. The number of H+ ions added depends on the number of hydrogen atoms needed. In this case, we need eight H atoms on the left side, so we add eight H+ ions to the left side of the equation:
Cr2O7^2- + C2H4O + 8H+ → C2H4O2 + Cr3+ + 3H2O
Finally, we balance the charge by adding electrons. The number of electrons added depends on the difference in charge on the left and right side of the equation. In this case, the left side has a charge of -2 (from the Cr2O7^2- ion), while the right side has a charge of +3 (from the Cr3+ ion). This means that we need to add 5 electrons to the left side of the equation to balance the charge:
Cr2O7^2- + C2H4O + 8H+ + 5e- → C2H4O2 + Cr3+ + 3H2O
Therefore, the coefficient for water molecules in the balanced version of the given redox reaction is 3.
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All are primary pollutants except. A. Ammonia. B. Peroxyacetyl Nitrate (PAN). C. Sulfur dioxide. D. Hydrogen sulfide.
Except the Peroxyacetyl Nitrate (PAN), all other options like Amonia,Sulfur dioxide, Hydrogen sulfide are primary pollutants. Thus, the correct choice for answer of this problem is option (B).
Primary pollutants: Primary pollutants are the injected into the atmosphere directly. For examples are carbon monoxide, CO, nitrogen oxide, NO, and sulfur oxide. In the following provide options , A. Ammonia C. Sulfur dioxide and D. Hydrogen sulfide are primary pollutants. But Peroxyacetyl Nitrate PAN is not a Primary pollutant. Since it form in the atmosphere after the emission of primary pollutants. It is an oxidant that is more stable than Oxone. Sources of the pollutants required to create PANs include motor vehicles, tobacco smoke, and the burning of fossil fuels. It is an secondary pollutant present in photochemical smog. Hence, the Peroxyacetyl Nitrate (PAN) is correct answer.
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Can somebody help me please??????
a compound is found to contain 53.70% iron and 46.30% sulfur. Find The Empirical Formula Of A Compound Containing 53.70% Iron And 46.30% Sulfur
Fe2S3 is The Empirical Formula Of A Compound Containing 53.70% Iron And 46.30% Sulfur.
Fe = 0.961 mol and S = 1.44 mol, Now divide them to get lowest empirical formula. When the subscripts in a chemical formula represent the simplest ratio of the kinds of atoms in the compound, the formula is called an empirical formula.
Most ionic compounds are described with empirical formulas. A molecular formula describes the actual numbers of atoms of each element in a molecule. A compound that contains ions and is held together by ionic bonds is called an ionic compound. The periodic table can help us recognize many of the compounds that are ionic:
When a metal is combined with one or more nonmetals, the compound is usually ionic. This guideline works well for predicting ionic compound formation for most of the compounds typically encountered in an introductory chemistry course. However, it is not always true (for example, aluminum chloride, AlCl3, is not ionic).
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Part A (a) A mixture is prepared by mixing 70 mL of ethanol with 30 mL of H20. In this mixture, H2O is the solute solid solvent O ionic compound O solution Submit Request Answer
In the solution water is solute and ethanol is solvent.
Binary solution
A mixture of two liquids that are completely miscible one with another is known as a Binary solution. The boiling point of binary solution depends upon the composition of the solution.
A binary solution consists of a solute and a solvent.
The solute is usually present in smaller quantity and solvent is in larger quantity.
If a solution has 70 ml ( larger quantity ) of ethanol , it means ethanol is the solvent .
water with 30 ml of quantity ( smaller quantity ) will be the solute.
So , in the mixture, water is the solute.
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Which species reacts most readily with propane?
A. Br2
B. Br•
C. Br-
D. Br+
The species that reacts most readily with propane is Br•, which is a bromine radical. This is because radicals are highly reactive species that have unpaired electrons, making them very eager to participate in chemical reactions.
In the case of propane, Br• can abstract a hydrogen atom from the molecule, forming a bromine-substituted propane molecule and a propane radical. This reaction is an example of a radical chain reaction, where one radical can initiate a reaction by reacting with a stable molecule to form a new radical, which can then react with another molecule, and so on. In contrast, Br2 is a stable molecule and Br+ is a cation, both of which are less reactive than Br• and would therefore be less likely to react with propane.
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Metals in group 2 of the periodic table form ionic bonds in a one-to-one ratio with nonmetals in group ______.
15
15
16
16
17
17
18
18
Answer:
7
Explanation:
Bec g1 has to lose one electron and g7 has to gain one electron