The procedure for making zeolite is carried out in an acidic medium. T/F

Answer:

812.3 kilogram/cubic meter

Explanation:

I used an online calculator.

Hope I helped!

Answer:

110.21 g/mol

............................

Answer:

110.22 g in 2.75 moles of calcium

Explanation:

to convert moles to grams

moles (g/mol)

2.75 mol Ca (40.08 (atomic weight) g Ca/1 mol Ca)= 110.22

The method by which some molecular compounds dissolve in water to form ions; when neutral molecules gain or lose electrons (ions) is known as ionization.

Ionic compounds dissolve in water as the water molecules hydrate the ions. It is the method in which an atom/molecule obtains a positive/negative charge by losing or gaining electrons. The resulting species that hold charges are learned as ions. The positively charged species are called cations while the negatively charged species are called anions. To dissolve an ionic compound, the water molecules must be competent to stabilize the ions that result from shattering the ionic bond. Water is a polar molecule. It has an enduring dipole.

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Cadmium. With the exception of potassium, harmful metal contaminants include chromium, lead, and mercury.

Individual metals and metal compounds that are toxic to humans' health, called "heavy metals," include both single metals and metal compounds. This page discusses certain poisonous semi-metallic elements, such as selenium and arsenic. Many of these metals are essential to life in extremely tiny quantities. But when consumed in greater quantities, they became poisonous. They might accumulate in biological systems and pose a serious risk to one's health. Technical and governmental information regarding hazardous metals can be found on this website as a starting point. As harmful metal contaminants, arsenic and beryllium are also present. An abundant yet uncommon element called cadmium is naturally present in the environment.

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Answer:

13

Explanation:

The mass number of an atom is the sum of the number of protons and neutrons.

27 = protons + 14

protons = 13

The number of protons is equal to the atomic number.

Answer: 41 or Niobium

Explanation: To get the number of Protons or Electrons given the number of Neutrons and Mass, you have to add the given numbers. This gives the number of Protons and Electrons which is the same number as the Atomic number. So, 14 Neutrons plus the mass of 27 is equal to 41, which gives the element Niobium

Answer: 28

Explanation:a=d+a

Answer:

12) In the ball and stick model, an orange ball representing the phosphorus atom and three green balls representing chlorine atoms are connected by means of sticks that are coloured halfway green and orange respectively to represent the shared electrons between phosphorus and chlorine with the chlorine atoms forming the base of a triangular pyramid while the phosphorus atom forms the top of the pyramid.

13) The scientist will have 6 grams of product as before but will have two grams of unreacted copper atoms because the mass ratio of copper to sulfur in this reaction is 2:1

Explanation:

12) Phosphorus trichloride has a trigonal pyramidal structure and is composed of three atoms of chlorine and one atom of phosphorus.

In the ball and stick model, an orange ball representing the phosphorus atom and three green balls representing chlorine atoms are connected by means of sticks that are coloured halfway green and orange respectively to represent the shared electrons between phosphorus and chlorine with the chlorine atoms forming the base of a triangular pyramid while the phosphorus atom forms the top of the pyramid.

13) The reaction between copper and sulfur to form copper sulfide is shown in the equation below:

Cu + S ---> CuS

1 mole of copper reacts with 1 mole of sulfur to produce 1 mole of copper sulfide

molar mass of copper = 64 g/mol; molar mass of sulfur = 32 g/mol, molar mass of copper sulfide = 96 g/mol

mass ratio of copper to sulfur = 63 g/ 34 g = 2

This means that 2 grams of copper will react with 1 g of sulfur to produce 3 grams of product. similarly, 4 g of copper will react with 2 g of sulfur to produce 6 grams of product.

Therefore 6 g of of copper will react with 3 g of sulfur. However, since the amount of sulfur available for reaction is 2 g only, 2 g of copper will be left unreacted after 4 g has reacted completely with 2 g of sulfur to produce 6 g of copper sulfide.

The number of miles one can drive if a car gets 29.50 miles per gallon with 12.00 gallons of gas would be

The car in question can cover a distance of 29.50 miles per gallon of gas and there is a total of 12.00 gallons of gas available. If one gallon can cover a distance of 29.50 miles, then the distance that the 12 gallons can cover can be calculated using dimensional analysis as follows:

1 gallon = 29.50 miles

12 gallons = 28.50 x 12

                 = 342 miles

In other words, if one gallon can cover a distance of 29.50 miles, then the 12.00 gallons of gas will cover a total distance of 342 miles.

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Answer:

16.6 g of Al are produced in the reaction of 82.4 g of AlCl₃

Explanation:

Let's see the decomposition reaction:

2AlCl₃ →  2Al  + 3Cl₂

2 moles of aluminum chloride decompose to 2 moles of solid Al and 3 moles of chlorine gas.

We determine the moles of salt:

82.4 g . 1mol/ 133.34g = 0.618 moles

Ratio is 2:2. 2 moles of salt, can produce 2 moles of Al

Then, 0.618 moles of salt must produce 0.618 moles of Al.

Let's convert the moles to mass → 0.618 mol . 26.98g /mol = 16.6 g

The hydronium-ion concentration of a Ba(OH)2 solution at 25°C is 1.2 × 10^-12 M. The chemical formula for barium hydroxide is Ba(OH)2.

Barium hydroxide is a strong base that is highly soluble in water. When it dissolves in water, it dissociates into Ba2+ and OH-.

The following is the equation for the reaction of Ba(OH)2 with water: Ba(OH)2 + H2O → Ba2+ + 2 OH-The molar concentration of Ba(OH)2 is 1.3 x 10^-2 M.

Since Ba(OH)2 is a strong base, it dissociates completely to give OH- ions. The amount of OH- ions generated by Ba(OH)2 is two times the amount of Ba(OH)2.

Therefore,[OH-] = 2 × 1.3 × 10^-2 M = 2.6 × 10^-2 M

Now that we have the OH- concentration, we can use the following equation to find the hydronium ion concentration: Kw = [H+][OH-] = 1.0 × 10^-14 M2[H+] = Kw / [OH-]= (1.0 × 10^-14 M2)/(2.6 × 10^-2 M)= 3.8 × 10^-13 M

Therefore, the hydronium-ion concentration of a Ba(OH)2 solution at 25°C is 3.8 × 10^-13 M.

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The balanced chemical equation for the reaction between aluminum and silver nitrate is:

2 Al + 3 AgNO3 → 3 Ag + 2 Al(NO3)3

From the equation, we can see that 3 moles of aluminum nitrate (Al(NO3)3) are produced for every 3 moles of silver nitrate (AgNO3) consumed.

Therefore, if 0.75 moles of silver nitrate react, we can calculate the number of moles of aluminum nitrate produced as follows:

0.75 mol AgNO3 x (2 mol Al(NO3)3 / 3 mol AgNO3) = 0.50 mol Al(NO3)3

So, 0.50 moles of aluminum nitrate (Al(NO3)3) are obtained from the reaction of 0.75 mol of silver nitrate with a sufficient amount of aluminum.

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Answer:

Oil prices would decrease, and availability would increase

Explanation:

The transcription product of the DNA sequence 5ʹ-TGCCA-3ʹ is mRNA with the sequence 5ʹ-ACGGU-3ʹ.

Transcription is the process by which the genetic information present in DNA is copied into RNA. The transcription process takes place in the nucleus of the cell, and DNA acts as a template for mRNA synthesis. mRNA is synthesized using RNA polymerase enzyme, which catalyzes the formation of mRNA strands with complementary base pairs to the template DNA strand.

The DNA sequence 5ʹ-TGCCA-3ʹ has the following complementary sequence 3ʹ-ACGGT-5ʹ, which is used as a template for mRNA synthesis. The mRNA is synthesized with the following complementary sequence to the template DNA strand: 5ʹ-ACGGU-3ʹ. The base Uracil (U) replaces the Thymine (T) base in RNA, and that's why the mRNA sequence is 5ʹ-ACGGU-3ʹ instead of 5ʹ-ACGGT-3ʹ.

The synthesized mRNA strand is processed further before it moves to the cytoplasm for translation. In processing, a cap structure is added at the 5ʹ end, and a poly(A) tail is added at the 3ʹ end. These modifications protect the mRNA from degradation and help in mRNA stability.

Hence, the transcription product is 5ʹ-ACGGU-3ʹ.

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Answer:

9 is clay, silt, sand in that order

Explanation:

Loam soil contains 10 to 20 percent clay, 40 percent silt and 40 percent sand. Less than 50% of the soil is made up of minerals; the remainder is made up of organic matter and void space.

Clay, sand, plus silt are the three minerals that make up loam soil. Loam is the best soil for growing plants when mixed in the appropriate amounts. Less than 50% of the soil is made up of minerals; the remainder is made up of organic matter and void space.

In loam soil, little will grow without the latter two. The ideal combination of clay, sand, plus silt will provide the void where minerals, organic materials, water, and air may support life. Loam soil contains 10 to 20 percent clay, 40 percent silt and 40 percent sand. Basalt transforms into clay-like soil, whereas granite decomposes into silty sands.

Therefore, loam soil contains 10 to 20 percent clay, 40 percent silt and 40 percent sand.

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The molecular weight of cerium(IV) nitrate hexahydrate is 446.24 g/mol. Therefore, one mole of cerium(IV) nitrate hexahydrate contains one mole of cerium(IV) ions, which will combine with four moles of nitrate ions to form one mole of cerium(IV) nitrate hexahydrate.

The formula for the concentration of ions in a solution is C = n/V where C is the concentration of ions, n is the number of moles of ions, and V is the volume of the solution in liters. The first step in solving this problem is to calculate the number of moles of cerium(IV) nitrate hexahydrate in 150.0 mL of a 0.565 M solution. This can be done using the following formula:n = M x V n = 0.565 mol/L x 0.150 L= 0.08475 mol of cerium(IV) nitrate hexahydrate This amount contains four times as many moles of nitrate ions as cerium(IV) ions.

Therefore, the number of moles of nitrate ions is: nitrate ions = 4 x 0.08475 militate ions = 0.339 molThe volume of the solution is 150.0 mL, which is equal to 0.150 L. Using the formula given above, we can calculate the concentration of nitrate ions :C = n/V= 0.339 mol/0.150 LC = 2.26 M Therefore, the concentration of nitrate ions in the solution is 2.26 M.

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Answer:

Explanation:

Gas is a state of matter that has no fixed shape and no fixed volume. Gases have lower density than other states of matter, such as solids and liquids. There is a great deal of empty space between particles, which have a lot of kinetic energy.

Answer:

Gas is a state of matter that has no fixed shape and no fixed volume. Gases have lower density than other states of matter, such as solids and liquids. There is a great deal of empty space between particles, which have a lot of kinetic energy.

Explanation:

The statements true for the reaction are A, C, and E.

The potential energy diagram of the following reaction has been given:

\(\rm CH_4\;+\;2\;O_2\;\rightarrow\;2\;H_2O\;+\;CO_2\;+\;891\;kJ\)

The reaction has been given to form water and carbon dioxide, along with the release of 891 kJ of energy.

The endothermic reaction is  the type of reaction that absorbed the energy from the system, while exothermic reaction released energy in the system.

The given system has releasing 891 kJ of energy. Thus, it has been an exothermic reaction.

The equation has been representing the 891 kJ of energy as the product. Thus, it has been released in the reaction as product.

The potential energy graph has been representing that the energy of the reactant has been higher than the product.

Thus, the statements true for the reaction are A, C, and E.

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Answer:

A C E are correct, the answer above gives a very detailed explanation and is correct, please go read and rate theirs instead.

Explanation:

The observed rotation of a racemic mixture is 0º because the two enantiomers rotate plane-polarized light to an equal extent but in opposite directions, so the rotations cancel.

Racemic mixtures are a type of mixture that consists of equal amounts of two enantiomers of a chiral molecule. Enantiomers are mirror images of each other and are not superimposable. Racemic mixtures are optically inactive, which means they do not interact with plane-polarized light.

Racemic mixtures are often used in pharmaceuticals and can help determine the relative potency of the two enantiomers. Racemic mixtures can also be used to create new compounds that are not possible with a single enantiomer.

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To obtain a more reliable or precise value for the optimum temperature in an experiment, several changes can be made. Here are some suggestions: Replicate the experiment, Increase sample size, Use a narrower temperature range, Utilize more precise temperature control etc

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Answer:

Vinegar

Explanation:

Both sodium citrate and glucose are polar substances. Since they are polar substances, they will be found in greater concentration in the aqueous phase. The aqueous phase in this case is vinegar.

Hence a greater concentration of the sodium citrate and glucose will be found in the vinegar with only very little concentration in the oil.

The use of natural refrigerants supports efforts to reduce greenhouse gas emissions and minimize the environmental impact of refrigeration and air conditioning systems.

Carbon Dioxide (CO2): CO2 is a natural refrigerant that has been used for many years. It is non-toxic, non-flammable, and has a low environmental impact. CO2 refrigeration systems are commonly used in commercial and industrial applications, especially in cascade systems and in supermarkets.

Ammonia (NH3): Ammonia is another widely used natural refrigerant. It has excellent thermodynamic properties, high energy efficiency, and is environmentally friendly. Ammonia is commonly used in industrial refrigeration systems, cold storage facilities, and large-scale applications.

Propane (C3H8): Propane, also known as R-290, is a hydrocarbon natural refrigerant. It is non-toxic, non-ozone depleting, and has a low global warming potential. Propane is primarily used in small-scale refrigeration and air conditioning applications, such as domestic refrigerators and freezers.

Butane (C4H10) and Isobutane (C4H10): Both butane and isobutane are hydrocarbon natural refrigerants. They have properties similar to propane and are also used in small-scale refrigeration and air conditioning systems. However, due to their higher flammability compared to propane, their use is typically more limited.

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Answer:

Hexaflourine Pentaiodide?

Explanation:

f = flourine (6 = hexa)

i = iodine (5 = penta) + ide

You would need to add 250 mL of water.

Answer:

Option A

Explanation:

Emma creates a pressure difference allowing the fluid to flow

Answer:

To linearize the proteins

Explanation:

Laemmli buffer, which contains SDS, was added to fish samples to linearize the proteins by breaking up secondary and tertiary protein structure, ensuring that proteins will only move by size. Also, coats proteins to be electrically charged so it will migrate down the gel

The pulse duration of periodic pulse train with a duty cycle of 15% and a period of 115 nanoseconds is 17.25 nanoseconds.

Duty cycle  = 15% or 0.15

Time period = 115 nanoseconds

The ratio of the amount of time the signal spends in the "on" state to its overall duration is known as the duty cycle. The signal is on for 15% of the entire period when the duty cycle is given as 15% in this instance. Duty cycles are a term used to represent the percentage of time that an electrical signal is active in a device, such as the power switch in a switching power supply, or when an organism, like a neuron, fires an action potential.

Calculating the duty cycle and the period of the pulse train -

Pulse duration = Duty cycle x Period

= 0.15 x 115

= 17.25

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In this configuration, all the available energy levels are completely filled, and the N²⁺ ion is in its ground state.

The ground-state electron configuration for the N²⁺ ion, which is formed by removing two electrons from a nitrogen atom, can be determined by following the rules of electron configuration. First, let's recall the electron configuration of a neutral nitrogen atom, which has 7 electrons. The electron configuration of nitrogen is 1s² 2s² 2p³.

To form the N²⁺ ion, we need to remove two electrons from the neutral nitrogen atom. Since electrons are removed from the highest energy levels first, we start by removing electrons from the 2p sublevel. Removing two electrons from the 2p sublevel leaves us with the following electron configuration for the N²⁺ ion: 1s² 2s².

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it's most abundant in the mid latitudes.