suppose you have 7.0 moles of aqueous barium chloride, and you mix this with aluminum sulfate solution. how many moles of aluminum chloride can you produce? ______moles of aluminum chloride

Answer:

catalyst

Explanation:

it alters the speed of reaction

Answer:

To dissolve an ionic compound

Explanation:

the water molecules must be able to stabilize the ions that result from breaking the ionic bond. They do this by hydrating the ions. Water is a polar molecule. ... When you place an ionic substance in water, the water molecules attract the positive and negative ions from the crystal.

Nuclear power plants produce electricity using energy from the radioactive decay of uranium-235. Option A is correct.

Nuclear power plants use nuclear reactors to produce heat through a process called nuclear fission, in which the nucleus of an atom is split into two smaller nuclei, releasing a large amount of energy. Uranium-235 is a naturally occurring radioactive isotope of uranium that is used as fuel in nuclear reactors because it undergoes nuclear fission more readily than other isotopes.

Uranium-238 is also used in nuclear reactors, but it must first be converted into plutonium-239 through a process called nuclear transmutation. Plutonium-235 and plutonium-238 are also used as nuclear fuel in certain types of nuclear reactors, but they are produced artificially through nuclear transmutation.

Hence, A. uranium-235 is the correct option.

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Answer: The correct option is A. The moon's orbit around Earth

Explanation: Newtons first law of motion says that an object in motion will always remain in motion and an object in erst will always stay at rest untill an external force acts upon it. This law is also called law of inertia which is the property of a body to resist any change in its state of rest or motion. Since moon is also revolving around the earth so it is in motion always and it continues its motion.

Answer:

the moon’s orbit around Earth

Explanation:

Answer:

1.5625

Explanation:

the half life of an isotope is the amount of time it takes for one half of the isotope to decay

28650 is 5 half lives (28650÷5730=5)

after one half life the mass will be 25 grams

after two half lives the mass will be 12.5 grams

after 3 half lives the mass will be 6.25 grams

after 4 half lives the mass will be 3.125 grams

after 5 half lives the mass will be 1.5625 grams

Answer:

Volcanic mountains form as lava oozes forth from cracks in the earth. The lava builds up around the area where the eruption occurred. Layers build upon layers and over a period of time, a volcanic mountain forms. There are several ways that volcanic mountains are formed. Shield volcanoes, which are very wide with a gentle slope, are formed by long periods of eruption with low-viscosity lava.

Explanation: Hoped this helped! :)

A single replacement reaction is a type of chemical reaction that takes place when one element in a compound is replaced by another element. In other words, in this reaction, one element is replaced by another element. There are a few ways to predict whether or not a single replacement reaction will occur.

These ways are explained below: Paying Attention to ReactantsThe first way to predict if a single replacement reaction will occur is by paying attention to the reactants. In a single replacement reaction, a more reactive element will replace a less reactive element. For example, if a metal element is mixed with an aqueous solution that contains ions of another metal, a single replacement reaction will occur if the metal in the solid state is more reactive than the metal in the solution state. For instance, if you put zinc in copper sulfate, a reaction will occur because zinc is more reactive than copper. Therefore, it will replace copper, producing zinc sulfate and copper.Using the Activity SeriesAnother way to predict if a single replacement reaction will occur is by using the activity series. The activity series is a list of metals and their ability to replace other metals from their compounds. This list is arranged in order of decreasing activity. Therefore, if a metal is more active than another metal on the activity series, it will replace that metal from its compound. For example, if you put magnesium in silver nitrate, a reaction will occur because magnesium is more reactive than silver. Therefore, magnesium will replace the silver, producing magnesium nitrate and silver. If the metal is less active than another metal on the activity series, no reaction will occur.Using Electrochemical SeriesThe electrochemical series is another way to predict if a single replacement reaction will occur. The electrochemical series lists the elements in order of their standard reduction potentials. A metal with a higher reduction potential will replace a metal with a lower reduction potential from its compound. For instance, if you put copper in magnesium sulfate, no reaction will occur because copper has a lower reduction potential than magnesium. Therefore, magnesium will not replace copper from its compound.

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The electron configuration of a potassium atom at ground state is 1s²2s²2p⁶3s²3p⁶4s¹. Therefore, option D is correct.

The electron configuration of an element can be explained as electrons being occupied in different energy levels of an atom of a specific element. In the electron configuration, the electrons are usually written as a superscript of atomic subshells. For example, the electron configuration of Helium can be represented as 1s²2s².

The sequence of completely filled subshells similar to neighboring the electronic configuration of a noble gas is represented by square brackets. The principal quantum number (n) will be used to denote the maximum number of electrons in an electron shell.

The total number of electrons occupied in the given electronic configuration  1s²2s²2p⁶3s²3p⁶4s¹  is 19. The atomic number of potassium is 19 therefore it is the configuration of potassium.

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Explanation:

green is dominate and theres a G in each box that makes it all Green

In sharp contrast to elimination reactions, addition reactions are generally favored at low temperature, because enthalpy term is more likely to be negative at such temperatures.

An addition reaction is an organic reaction occur when two or more molecules combine to form a larger molecule without the loss of any atoms present in reactant. Addition reaction is favored at low temperature.

Elimination reaction is a type of organic reaction where many atoms either in groups or pairs are removed from a molecule. Elimination reaction is favored at high temperature.

Thus from the above conclusion we can say that In sharp contrast to elimination reactions, addition reactions are generally favored at low temperature, because enthalpy term is more likely to be negative at such temperatures.

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The correct option is A, The compound's solid form does not melt at 82°C but instead sublimes (directly transitions from a solid to a gas) at 41°C

Sublime is a term that can have multiple meanings depending on the context in which it is used. In general, "sublime" refers to something of exceptional beauty, grandeur, or excellence that evokes feelings of awe, admiration, or transcendence. It often implies an experience or object that surpasses ordinary or mundane qualities. In aesthetics, the concept of the sublime originated in the 18th century and was associated with a sense of overwhelming greatness, often found in nature. It encompasses the idea of encountering something so powerful or vast that it elicits a mixture of fear and fascination.

Sublime can also describe an elevated state of consciousness or a feeling of spiritual or intellectual enlightenment. It implies reaching a heightened level of understanding, perception, or creativity. Furthermore, "sublime" can be used to describe something exceptionally well-executed, whether it be a work of art, a musical composition, or a literary piece. It implies mastery, skill, and the ability to create something extraordinary.

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Complete Question:

What can be said of a compound whose liquid has a freezing point of 82 C?

A). The solid sublimes at 41°C

B). The liquid has a boiling point of 164°C

C). The solid has a melting pent of 82°C

D). The solid has a melting point of 41 °C

It would take 211 hours to plate 28.3 g of silver on a flute.

The equation of the reaction;

Ag^+(aq) + e -----> Ag(s)

We know that 1 F of electricity is required to deposit 107.87 g of Ag. Also 1F = 96500 C

Now;

Since  107.87 g is deposited by 96500 C of electricity

28.3 g is deposited by  28.3 g ×  96500 C/ 107.87 g

= 25317 C

Also;

Q = It

I = current

t = time

25317 C =  2.0 amps × t

t = 25317 C /2.0 amps

t = 12658.5 seconds or 211 hours

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Answer:

Explanation:

Electrolysis equation is:

\(Ag1+ + 1e- ------> Ag\)

1 mol of Ag requires 1 mol of electron

1 mol of electron = 96485 C

So,

1 mol of Ag requires 96485 C

let us calculate mol of element deposited:

molar mass of Ag = \(107.87 g/mol\)

number of mol of Ag, \(n = \frac{mass of Ag}{molar mass of Ag}\)

\(n = \frac{28.3}{107.87}\\\\n = 0.2623 mol\)

\(total charge = mol of element deposited * charge required for 1 mol\\\\total charge = 0.2623*9.649*10^4\\\\total charge = 2.531*10^4 C\)

Therefore,

\(time = \frac{Q}{i}\\\\= \frac{2.531*10^4}{2}\\\\= 1.265*10^4 seconds\\\\= 3.515 hr\)

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The lines in a line graph aid in the fairly early detection of trends, allowing the viewer to make predictions about the data that has not yet been recorded.These are appropriate for illustrating the data points since, given one variable, the other is simple to ascertain.

A line graph, often known as a line chart, is a visual representation of data that is continuously changing over time.

There are two axes. in a line graph, the occurrences and categories being compared throughout time are shown on the x-axis (abscissa), and the scale, which is a group of integers that reflects the data and is divided into equal intervals, is shown on the y-axis (ordinate).

Depending on the data, the graph's lines may either decline or ascend. It is practical to plot time graphs along the x/y axis since it shows the rise and fall of data points in great detail.

The reader may readily see changes in one group over time by choosing the appropriate scales for each axis (time on the x-axis and change is measured on the y-axis).

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The given statement, "the pentose phosphate pathway can be characterized as an anabolic pathway" is true.

The pentose phosphate pathway, also known as the phosphogluconate pathway or hexose monophosphate shunt, is an important metabolic pathway that functions alongside glycolysis, the citric acid cycle, and oxidative phosphorylation, among others, to produce energy in the form of ATP or NADPH for a variety of cellular processes.

The pentose phosphate pathway plays an essential role in anabolic reactions, including DNA and RNA synthesis, as well as the synthesis of NADPH, an essential cofactor for biosynthesis reactions. In addition, the pathway is crucial for antioxidant protection, as it helps to prevent oxidative stress by producing NADPH, which is used to regenerate glutathione, a potent antioxidant.

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A mass of 9.1 1031 kilograms (Kg). A wavelength of 1010m, or around the size of an atom, can be calculated from the de Broglie relation. Due to this, we may directly examine the atomic structure of a crystal using electron microscopes.

Using the de Broglie relation between the momentum p and the wavelength of an electron (=h/p, where h is Planck constant), the wavelength of an electron is computed for a given energy (accelerating voltage). When the wavelength is expressed in meters, 1/ stands for the number of waves in a wave train that can fit within a length of one meter, or, if the wavelength is expressed in centimeters, the number of waves that can fit within a length of one centimeter.

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Answer: Metals tend to gain electrons.

Explanation: Hope this helps!!! Have an amazing day!

Answer:

Non-metals tend to lose electrons

True. Group 2 sulfates become less soluble as you descend the group.

Explanation: As you go down the Group 2 elements (beryllium, magnesium, calcium, strontium, and barium), the ionic radius of the cation increases, and the charge density decreases. This results in a weaker attraction between the cation and the sulfate anion, making it more difficult to dissolve the sulfate. Additionally, the lattice enthalpy (the energy required to separate one mole of a solid ionic compound into its gaseous ions) increases as the size of the cation increases. This means that the solid sulfate is more stable and less likely to dissolve. Therefore, the solubility of Group 2 sulfates decreases as you descend the group.

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Answer:

The presence of drugs or chemicals in an organisms environment can also influence gene expression in the orgains.

Answer:

the best answer would be A

Explanation:

cause it contains a red colored compound.

Answer:

Ionic

Explanation:

Lithium is an alkali metal and form an ionic bond by donating an electron.

Fluorine is a halogen and forms ionic bonds by accepting an electron.

Diagramming the formation of an ionic bond between lithium and fluorine looks exactly like the diagrammed bond between sodium and chlorine in the video below. Lithium behaves just like the sodium (Na) and fluorine will act like the chlorine (Cl).

Answer:

A. A new substance

Explanation:

sorry if its wrong if its right your welcome <3

Colorimetric methods of analysis make use of Color changes in reagents to decipher the concentration of solutions.

Therefore, color completes the sentence

Generally, Colorimetric analysis is used to know the concentration of a chemical element in a solution while using colour indicators or reagents.

Therefore

Colorimetric methods of analysis are based on having a reagent that changes Color as a function of the concentration of the analyte.

Color

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The amount of heat absorbed in the complete reaction of 3.00 grams of SiO2 with excess carbon can be calculated using the given DH0 value for the reaction. The correct answer is option D: 1.33 ´ 104 kJ.

To calculate the heat absorbed in the reaction, we need to use the given DH0 value and the stoichiometry of the reaction. According to the balanced equation, 1 mole of SiO2 reacts with 3 moles of C to produce 1 mole of SiC and 2 moles of CO.

First, we need to calculate the moles of SiO2 in 3.00 grams using its molar mass. The molar mass of SiO2 is approximately 60.08 g/mol. Therefore, 3.00 grams of SiO2 is equal to 3.00 g / 60.08 g/mol = 0.04996 mol.

Next, we can use the DH0 value of +624.6 kJ to calculate the heat absorbed in the reaction. Since 1 mole of SiO2 is involved in the reaction, the heat absorbed can be calculated as follows:

Heat absorbed = DH0 × moles of SiO2

= +624.6 kJ/mol × 0.04996 mol

≈ 1.33 ´ 104 kJ

Therefore, the correct answer is option D: 1.33 ´ 104 kJ, representing the amount of heat absorbed in the complete reaction of 3.00 grams of SiO2 with excess carbon.

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Answer:

get a little more than that is a great deal for the company and inventor of a company how can we get u a great job with their best friend in a few months but il will send you i will be the only person I know of fishes and the best I have to ask me to make it to my own home wifi and I am grade up to the same thing and the same way of the American people I have a lot to make a simple one person