What is the molality of a solution made by dissolving 2 moles of NaOH in 10
kg of water?

Answer:

2.coefficient how many molecules of Aluminum hydroxide there are

Answer:

C

Explanation:

Option C is an accurate model of ethane.

Ethane is an alkane that has two carbon atoms bonded together and each atom has three hydrogen atoms that are attached to them. Ethane has single bonds and that makes it an alkane.

This model of ethane has six carbon-hydrogen bonds shown with solid lines that are protruding out. Rotation that takes place about the carbon-carbon bond actually results in the different molecular conformations of ethane.

The mineral class that makes up more than 95% of rocks in the continental crust is termed the silicates

Continental crust is the outermost layer of Earth’s lithosphere that makes up the planet’s continents and continental shelves and is formed near subduction zones at plate boundaries between continental and oceanic tectonic plates. The continental crust forms nearly all of Earth’s land surface.

Continental crust is broadly granitic in composition and, with a density of about 2.7 grams per cubic cm, is somewhat lighter than oceanic crust, which is basaltic (i.e., richer in iron and magnesium than granite) in composition and has a density of about 2.9 to 3 grams per cubic cm.

Continental crust is typically 40 km (25 miles) thick, while oceanic crust is much thinner, averaging about 6 km (4 miles) in thickness.

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The actual volume of water measured out 10.012 mL.

We know that every three-dimensional object occupies some space. Volume is defined as the space that is measured in terms of its volume. Volume of any substance changes according to the mass.

Mass of water taken = 9.990 gram,

Density of water taken = 0.9978 gram/ml

We know formula volume in mL = mass in gram / density in gram per mL

Substitute values in this formula to find volume of water taken in mL

Volume of water taken in mL = 9.990/0.9978 = 10.012 ml

Hence, actual volume of water measured is 10.012 ml.

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Answer: 1.176 atm NO

Answer:

The electrons are attracted to the nuclei of both atoms.

Explanation:

Electrons are attracted to nuclei because nuclei are positively charged and electrons are negatively charged. Opposites attract

Answer:

A meteor hit earth they think the moon is created from debris from earth but really God created it UwU

Explanation:

The mol fraction of Argon is 0.00892 \(CO_{2}\) is 0.00038.

The  mol fraction of all the remaining gases present in air can be calculated by subtracting the partial pressures of nitrogen and oxygen from the total pressure of air at sea level, and then dividing each remaining gas's partial pressure by the resulting value.

1. Subtract the partial pressures of nitrogen and oxygen from the total pressure of air at sea level:

760.0 torr - 593.5 torr (\(N_{2}\)) - 159.2 torr (\(O_{2}\)) = 7.3 torr

2. Divide each remaining gas's partial pressure by the resulting value:

- Carbon dioxide (\(CO_{2}\)): 0.04 x 7.3 torr = 0.292 torr

- Argon (Ar): 0.93 x 7.3 torr = 6.789 torr

- Trace gases (Ne, He, Kr, Xe): collectively make up less than 0.01% of air, so their partial pressures are negligible

Therefore, the mol fraction of all the remaining gases present in air is:

- \(CO_{2}\): 0.00038 (0.292 torr / 760.0 torr)

- Ar: 0.00892 (6.789 torr / 760.0 torr)

To calculate the mol fraction of all the remaining gases present in air, you need to subtract the partial pressures of nitrogen and oxygen from the total pressure of air at sea level, and then divide each remaining gas's partial pressure by the resulting value.

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The pair of atoms that is unlikely to form a compound are neon (Ne) and argon (Ar) (option D).

Compounds are substances that are formed by chemical bonding of two or more elements in definite proportions by mass.

Elements combine to form compounds by sharing, donating or gaining electrons. For example, metals donate electrons to nonmetals to form metallic or ionic bonds.

However, noble gases are elements that have a completely filled shells, hence, do not engage in chemical bonding. Examples of noble gases are argon, helium, neon etc.

Therefore, the pair of atoms that is unlikely to form a compound are neon (Ne) and argon (Ar).

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The 3 general ways by which a system in equilibrium can be reversed are by changing the concentration of the reactants of products, changing the pressure of the system, and changing the temperature of the system.

Le Chatelier's principle state that when a reaction is in equilibrium and one of the constraints that affect the rate of reactions is applied to the system, the equilibrium shifts so as to cancel out the effects of the constraints.

The constraints being referred to by Le Chatelier are concentration, pressure, and temperature. Increasing or decreasing the pressure of a system in equilibrium will shift the equilibrium to the sides with the lower moles or higher moles respectively.

Increasing the concentration of the reactants will shift the equilibrium toward the product side while increasing the concentration of the products will shift the equilibrium toward the reactant side.

In the same vein, increasing the temperature of a system will sift the equilibrium towards the product if the system itself is endothermic. If the system is exothermic, a reversal will occur.

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If the lungs do not function to eliminate sufficient CO2, you might expect Serum bicarbonate levels to increase.

When the lungs do not eliminate enough CO2 from the body, the concentration of CO2 in the blood increases. An increase in CO2 in the blood results in a decrease in blood pH. To compensate for the decreased pH, the kidneys produce and retain more bicarbonate ions in the blood.

Bicarbonate acts as a base and can help to neutralize the excess H+ ions in the blood.The amount of bicarbonate in the blood is regulated by the kidneys. When the kidneys detect an increase in H+ ions in the blood, they produce and retain more bicarbonate ions.

Similarly, when the kidneys detect a decrease in H+ ions in the blood, they excrete more bicarbonate ions. This helps to maintain the pH of the blood within a narrow range, which is necessary for the proper functioning of the body.

Hence, if the lungs do not function to eliminate sufficient CO2, Serum bicarbonate levels will increase.

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According to the Nerst equation, when Ecell = 0 then : A) Q = K, the nerst equation is then :

log Keq = (n E°) / (0.0592 V)

The Nerst equation is given as follows :

E cell = E°cell  - (0.0592 V / n ) log Q

the electrical potential of the cell is depend on the Q, that reaction quotient of the reaction. at equilibrium ΔG = 0 . the reaction quotient    Q = K and from the equation , ΔG = -nFE , ans E = 0, now the nerst equation is given as :

0 = E° - ( RT / nF ) ln K

0 = E° - ( 0.0592 V / n) log K

log K = (n E°) / (0.0592 V)

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Answer:

Wavelength (D)............

Answer:

A

Explanation:

the amplitude is measured from the dotted line to the top of the crest. Looking at the picture the amplitude gets smaller

Yes, this relationship is described by Boyle's Law.

Key points on Boyle's Law:

Boyle's Law has important implications for many real-world applications, including the design of gas storage tanks, the operation of air conditioning and refrigeration systems, and the understanding of atmospheric pressure.

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To make an E9 mixture 8657.14 gal of E7 should be mixed with 3000 gal of E10

Given to us is the amount of ethanol in the E10 mixture is 10% of 3000 gallons:

Ethanol in E10 = 10% × 3000 gal = 0.10 × 3000 gal = 300 gal

To solve this problem, we can set up an equation based on the amount of ethanol in each mixture.

Let x represent the amount of E7 mixture (in gallons) that needs to be added to the E10 mixture to obtain the desired E9 mixture.

The amount of ethanol in the E7 mixture is 7% of x gallons:

Ethanol in E7 = 7% ×  gal = 0.07 × gal

The resulting E9 mixture will contain 9% ethanol of the total volume of 3000 + x gallons:

Ethanol in E9 = 9% × (3000 + x) gal = 0.09 × (3000 + x) gal

According to the problem, the resulting E9 mixture contains 906 gallons of ethanol:

Ethanol in E9 = 906 gal

Now we can set up the equation:

Ethanol in E10 + Ethanol in E7 = Ethanol in E9

300 gal + 0.07x gal = 906 gal

Subtracting 300 gal from both sides:

0.07x gal = 606 gal

Dividing both sides by 0.07:

x = 606 gal / 0.07

x = 8657.14

Therefore, approximately 8657.14 gallons of E7 mixture should be mixed with 3000 gallons of E10 to make an E9 mixture.

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Complete question: Ethanol fuel mixtures have "E" numbers that indicate the percentage of ethanol in the mixture by volume. For example, E10 is a mixture of 10% ethanol and 90% gasoline. How much E7 should be mixed with 3000 gal of E10 to make an E9 mixture?

The voltage across the 200 ohm circuit element, that draws a current of 4 A, is equal to 800 volts.

To find the voltage across a circuit element, take Ohm's Law, according to which the resistance (R) of a resistor is equal to the product of the current (I) that flows through it and the voltage (V) across it.

Use the values:

Current (I) = 4 A

Resistance (R) = 200 Ω

Using the formula of Ohm's Law:

V = I × R

V = 4 A × 200 Ω

V = 800 V

Voltage is  800 V.

Thus, the voltage across the 200 ohm circuit element, that draws a current of 4 A, is 800 volts.

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Sorry this question is incomplete.

The G1, S, and G2 stages of interphase, the mitotic phases of mitosis and cytokinesis, and the G0 phase make up the cell cycle.

The cell cycle is a four-step process in which the cell grows in size (gap 1, or G1, stage), duplicates its DNA (synthesis, or S, stage), gets ready to divide (gap 2, or G2, stage), and divides (gap 3, or S, stage) (mitosis, or M, stage). The period between cell divisions is represented by the stages G1, S, and G2, which together make up interphase.

The process through which cells multiply and divide into two new cells is known as the cell cycle. G1, S, G2, and M are the several cell cycle stages. The cell is getting ready to divide in the G1 stage. The cell next enters the S phase, where it duplicates all the DNA, to accomplish this.

There are five of these phases: prophase, prometaphase, metaphase, anaphase, and telophase. As the final physical cell division after telophase, cytokinesis is frequently regarded as the sixth stage of mitosis.

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i think its 50% bc its half of the box

Answer:

100%

Explanation:

The correct IUPAC name of the compound is 7-chlorohept-(3E)-en-1-yne.

The IUPAC name of a compound is determined by following a set of rules established by the International Union of Pure and Applied Chemistry (IUPAC). To determine the correct name of the compound given, we need to analyze its structure and identify the functional groups, substituents, and their positions.

In this case, the compound has a chain of seven carbon atoms (hept) with a chlorine atom (chloro) attached at the 7th position. It also contains a triple bond (yne) and a double bond (en) on adjacent carbon atoms. The stereochemistry of the double bond is indicated by the E configuration, which means that the two highest priority substituents are on opposite sides of the double bond.

Therefore, the correct IUPAC name of the compound is 7-chlorohept-(3E)-en-1-yne.

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The molar solubility of silver arsenate in pure water at 25°C is:

S = (1.0 x 10^-22 / [AsO4^3-])^(1/3)

The molar solubility of silver arsenate in 0.10 M AgNO3 is:

S = 4.22 x 10^-7 M

(a) Molar solubility of silver arsenate in pure water at 25°C can be calculated using the solubility product constant Kp and the expression:

Ag3AsO4(s) = Ag+ (aq) + AsO4^3- (aq)

Kp = [Ag+]^3 [AsO4^3-]

Rearranging, we have:

[Ag+]^3 = Kp / [AsO4^3-]

Taking the cube root of both sides:

[Ag+] = (Kp / [AsO4^3-])^(1/3)

Since Kp = 1.0 x 10^-22, we have:

[Ag+] = (1.0 x 10^-22 / [AsO4^3-])^(1/3)

Since the molar solubility is equal to the concentration of Ag+ ions, the molar solubility of silver arsenate in pure water at 25°C is:

S = (1.0 x 10^-22 / [AsO4^3-])^(1/3)

(b) To calculate the molar solubility of silver arsenate in 0.10 M AgNO3, we need to use the common ion effect. The presence of AgNO3 will increase the concentration of Ag+ ions in the solution and thus decrease the solubility of silver arsenate.

The solubility product constant equation can be written as:

Kp = [Ag+]^3 [AsO4^3-] = S^3 * [AsO4^3-]

Rearranging, we have:

S^3 = Kp / [AsO4^3-]

Since Kp = 1.0 x 10^-22 and [AsO4^3-] = S, we have:

S^3 = 1.0 x 10^-22 / S

S^4 = 1.0 x 10^-22

S = (1.0 x 10^-22)^(1/4) = 7.07 x 10^-6 M

However, this is the solubility in pure water. In 0.10 M AgNO3, the concentration of Ag+ ions is 0.10 M. So, we need to use the equation:

Ksp = [Ag+]^3 [AsO4^3-] = (0.10 + S)^3 S

Rearranging, we have:

S^3 = Ksp / (0.10 + S)^3

Substituting Ksp = 1.0 x 10^-22, we have:

S^3 = 1.0 x 10^-22 / (0.10 + S)^3

Solving for S, we obtain the molar solubility of silver arsenate in 0.10 M AgNO3 as:

S = 4.22 x 10^-7 M

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Answer:

STANDARD: 0.085 mi, 450 ft, or 150 yds

METRIC: 0.137 km, 137.16 m, or 13716 cm

Explanation:

Answer:

Explanation:

Titration: titrate twice, the first time with an indicator to determine how much sodium hydroxide is needed to completely react with hydrochloric acid, and the second time without an indicator to prevent the contamination of the sodium chloride salt produced

The statement that is true about the molarity of the solution is that 5.0 moles of a solute is dissolved in 1.0L of solution (option D).

Molarity is the concentration of a substance in solution, expressed as the number of moles of solute per litre of solution.

The molarity or concentration of a solution is a function of the number of moles of solute it contains and the volume of the solvent it is dissolved in.

This suggests that if a solution has a concentration of 5.0M, it has a solute of 5.0moles dissolved in 1.0L of solvent.

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The volume of 0.067 moles of helium (He) gas at STP is equal to 1.5017 Liters.

Given the following data:

Scientific data:

To determine the volume of 0.067 moles of helium (He) gas at STP, we would use the ideal gas equation:

\(V = n\frac{RT}{P}\)

Where;

Substituting the given parameters into the formula, we have;

\(V = \frac{0.067 \times 0.0821 \times 273}{1}\)

Volume, V = 1.5017 Liters

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The General Hazardous Materials Behavior Model event that involves the material being free to travel or disperse, allowing it to move outward from the source is known as dispersion.

This is the third event in the model and occurs after the release and contact events. During dispersion, the material is no longer contained and can spread through the air, water, or ground.

This can potentially cause harm to people, animals, and the environment. It is important to understand and predict the dispersion of hazardous materials in order to prevent or minimize the impact of an incident.

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Answer: 3.156 * 10^7

Explanation: I do not really understand your question. You answered it yourself!

Scientific notation shortens large numbers. The number right after the decimal point can only be between 1 and 9, which you did correctly. When converting to scientific notation, the exponent of ten is based on how many places you moved the decimal and the direction you moved it (left, positive; right, negative). In this case, the exponent of ten is a positive seven.

You did everything correctly :) Good job!

Answer:

Explanation:

Scientific theory is an in-depth explanation of the observed phenomenon. A law is a statement about an observed phenomenon or a unifying concept.