The student is now told that the four solids, in no particular order, are barium chloride (BaCl2), sugar (C6H12O6), benzoic acid (C6H5COOH), and potassium bromide (KBr). Assuming that conductivity is correlated to the number of ions in solution, rank the four substances based on how well a 0.20 M solution in water will conduct electricity. Rank from most conductive to least conductive. To rank items as equivalent, overlap them.

Answer:

Lead (ii) nitrate

Explanation:

It is soluble in sodium hydroxide but insoluble in aqueous ammonia

When heated it produces nitrogen (IV) oxide that isbrown in colour

The 30 grams of NaCl is a physical property of NaCl.

So, from this. we can conclude that the 30 grams of NaCl is a physical property of NaCl.

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Answer

Therefore, an azimuth of 90° corresponds to a quarter of the way clockwise from 0° or 360°, which is east. Similarly, 180° is south, and 270° is west. You can get azimuths corresponding to NE, SE, SW and NW by adding or subtracting 45° to the appropriate N, E, S or W azimuth.Explanation:

centi metre is the answer

Answer:

The meter is the standard measure of distance in metric units.

250 L of 5.0% w/v glucose solution can be prepared using 125 g of glucose.

w/v = [ mass of solute (g) / volume of solution (mL) ] × 100

5.0 % w/v = [ 125 g / volume of solution (mL) ] × 100

volume of solution (mL) = [ 125 g / 5.0 % w/v ] x 100

volume of solution (mL) = [ 125 g / (5.0 / 100) ] x 100

volume of solution (mL) = [ 125 g / 0.05 ] x 100

Answer:

Esto se debe a la rotación de la tierra

Explanation:

Surface ocean currents curve to the right in the Northern Hemisphere because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere. This deflection is called the Coriolis effect.

Answer:

B

Explanation:

the number of protons never changes even if the atomic mass changes

Normality of a solution of sulfuric acid (H2SO4) that containing 86 g

per liter of solution is 1N

The gram equivalent weight of a solute per liter of solution is what is known as a solution's normalcy. The comparable concentration is another name for it. The units of concentration are denoted by the symbols N, eq/L, or meq/L (= 0.001 N). A hydrochloric acid solution's concentration, for instance, could be stated as 0.1 N HCl. The reactive capacity of a specific chemical species is measured by gram equivalent weight or equivalent (ion, molecule, etc.). Utilizing the chemical species' molecular weight and valence, the equivalent value is calculated. The only concentration unit that is reaction-dependent is normality.

g equivalent mass of H2SO4 = 86g

Volume of solution in liter = 1 l

number of g equivalent of H2SO4 = 86/86 = 1

Normality = number of g equivalent/ volume of solution in liter

N = 1 / 1

Normality = 1 N

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Answer:

What's the gas given in the question??

Regarding the types of bonds, we can conclude that:

There are 3 kinds of chemical bonds.

Let's identify the type of bond in each of the following molecules.

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The concentration of FCl in the system .281 M

aA + bB ---> cC

Kc = [C]^c/[A]^a [B]^b

Kc = [FCl ]^2/0.115 * 0.221

123 = [FCl ]^2/0.115 * 0.221

[FCl] =  

= [C]c [D]d/[A]a [B]b = Kc

Kequ = kf/kb = [C]c [D]d/[A]a [B]b = Kc

where Kc is the equilibrium constant measured in moles/liter.

For reactions with gases:

The formula for equilibrium constant versus partial pressure is:

Kequ = kf/kb = [[pC]c [pD]d]/[[pA]a [pB]b] = Kp

where Kp denotes the equation for the equilibrium constant in partial pressure form.

Higher Kc/Kp values ​​indicate higher product formation and higher conversion.

Low Kc/Kp values ​​indicate low product formation and low conversion.

Average Kc/Kp values ​​indicate optimal product formation.  

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Answer:

it would be the second option. It responds to stimuli to help protect an organism and maintain structure

Answer:

it is the second one

Explanation:

i took the test

(a) The number of moles of Ag⁺ that reacted is 0.05 mmoles and moles of Cl- that reacted is 0.05 mmoles.

(b) The number of moles of AgCl(s) formed is 0.05 moles

(c) The molarity of Ag⁺ after the reaction = 0.0 M

(d) The molarity of NO₃⁻ after the reaction is 0.25 M

The number of moles of Ag and Cl- that reacted is calculated as follows from the equation of the reaction:

AgNO₃ (aq) + NaCl (aq) ---> AgCl (s) + NaNO₃ (aq)

(a) The number of moles of Ag and Cl- that reacted:

Moles of Ag⁺ = 0.5 * 0.1

Moles of Ag⁺ = 0.05 mmoles

Moles of Ag⁺ that reacted = 0.05 mmoles

Moles of Cl⁻ = 0.5 * 0.1

Moles of Cl⁻ = 0.05 mmoles

Moles of Cl⁻ that reacted = 0.05 mmoles

(b) The number of moles of AgCl(s) formed.

Moles of AgCl that formed = 0.05 moles

(c) Since there are no more Ag⁺ ions in the mixture, the molarity of Ag⁺ after the reaction = 0 moles

(d) The molarity of NO₃⁻ after the reaction.

Moles of NO₃⁻ = 0.5 * 0.1

Moles of NO₃⁻ = 0.05 moles

Volume of mixture = 0.2 mL

The molarity of NO₃⁻ after the reaction = 0.05/0.2

The molarity of NO₃⁻ after the reaction = 0.25 M

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Answer:

A. Argon

Explanation:

it is a gas that makes up to 1% of the atmosphere

For a system PCl3(g) + Cl2(g) PCl5(g) at equilibrium at 25°C, for which H° = –92.5kJ at 25°C, the ratio of the partial pressure of PCl5 to the partial pressure of PCl3 is will increase

Generally, the equation for chemiecal reaction is mathematically given as

PC3 (g) + C₁₁₂ (g) = PC15 (g) 3

Assuming the addition of some Cl2 gas. The reaction will shift to the right at the invariant volume temperature, maintaining equilibrium. This results in a rise in P9Cl5(g) and a fall in PpCl3(g).

PpCl (g) /PpCl (g) will increase

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The ratio of the partial pressure of PCl₅ to the partial pressure of PCl₃ is will increase for a system PCl₃ (g) + Cl₂ (g) --> PCl₅ (g) at equilibrium at 25°C, for which H° = –92.5kJ at 25°C when some Cl₂ (g) is added at constant volume and temperature.

Generally, the equation for chemical reaction is mathematically given as ;

PCl₃ (g) + Cl₂ (g) --> PCl₅ (g)

Assuming the addition of some Cl₂ gas,

The reaction will shift to the right at the constant volume and temperature, maintaining equilibrium.

This results in a rise in PCl₅ (g) and a fall in PCl₃(g).

Hence, the ratio of the partial pressure of PCl₅ to the partial pressure of PCl₃ is will increases

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The pOH of the 0.001 M NaOH solution is approximately 3.

To determine the pOH of a solution, we need to know the concentration of hydroxide ions (OH-) in the solution.

In the case of a 0.001 M NaOH solution, we can assume that all of the NaOH dissociates completely in water to form Na+ and OH- ions. Therefore, the concentration of hydroxide ions in the solution is also 0.001 M.

The pOH is calculated using the equation:

pOH = -log[OH-]

Substituting the concentration of hydroxide ions, we have:

pOH = -log(0.001)

Using a calculator, we can evaluate the logarithm:

pOH ≈ 3

Therefore, the pOH of the 0.001 M NaOH solution is approximately 3.

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Answer and Explanation:

The reaction is in the gas phase, so the equilibrium constant is expressed in terms of the partial pressures (P) of the products and reactants, as follows:

\(Kp = \frac{P^{2}_{SO_{3} } }{P_{SO_{2}} ^{2}P_{O_{2}} }\)

We have the following data:

P(SO₃) = 2.6 atm

P(O₂) = 0.43 atm

We need Kp for this reaction. We can assume that in Appendix 4 we found that Kp = 7 x 10²⁴.

Then, we introduce the data in the equilibrium constant expression to calculate the partial pressure f SO₂ (PSO₂), as follows:

\(P_{SO_{2} } = \sqrt{\frac{P_{SO_{3} } ^{2} }{Kp P_{O_{2} } } } = \sqrt{\frac{(2.6 atm)^{2} }{(7 x 10^{24)}(0.43 atm) } } = 1.5 x 10^{-12} atm\)

Therefore, the partial pressure of SO₂ is 1.5 x 10⁻¹² atm (for the given Kp).

The fundamental principle to understand about satellites is that they are projectiles. In other words, a satellite is an object whose only force is gravity. Once a satellite is launched into orbit, the only force governing its motion is gravity. Newton was the first to propose that a projectile launched quickly enough would orbit the Earth.

What is satellites ?

Any object that orbits the earth, sun, or other massive body is referred to as a satellite. Natural satellites and man-made satellites are the two types of satellites. Natural satellites include the moon, planets, and comets. Natural satellites are joined in orbit by a slew of satellites launched from Earth for communication, scientific research, weather forecasting, intelligence, and other purposes.

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d. The mass of the reactants and products is equal and is not dependent on the physical state of the substances explains the correct statement about the law of conservation of mass.

The law of conservation of mass is the law that states that matter or energy can neither be created nor destroyed. This means that the amount of matter in the universe is always the same. The law of conservation of mass is a fundamental law of physics and it is always obeyed by all physical processes.

The amount of matter in a closed system (one that is not subject to outside influences) will remain constant over time.

It is always obeyed even under the most extreme conditions, such as during nuclear reactions.

Hence, the correct option is d.

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Explanation:

Atomic number = 12

Block = s-block

Period = 3rd

Group = 2nd

Experiment: Does it Dissolve?

Materials Needed:

Step 1: Form a question before starting the experiment.

Step 2: Make a hypothesis for each substance.

Step 3: Scoop a teaspoon of each substance in the jars, only adding one substance per jar. Stir it up!

Step 4: Observe whether or not each substance dissolves and record the findings.

The equations represent an acid-base reaction is Ca ( OH )₂ + 2HBr ⇒ CaBr₂ + 2H₂O . Therefore, option D is correct.

The acid-base reaction (neutralization reaction) A salt and water are created when an acid and a base interact and neutralize one another. neutralization. a reaction between an acid and a base that results in a solution that isn't as basic or acidic as the initial solutions.

Salts and water are always present in most acid-base interactions. For instance, sodium hydroxide (NaOH) and hydrochloric acid (HCl) react to produce sodium chloride (NaCl) salt and water (H2O).

A neutralizing reaction occurs when an acid and a base interact. This reaction yields a salt and water as byproducts.

Thus, option D is correct.

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The mass of Aluminum Sulfate is 5.373 grams if you have \(2.837*10^{26\) atoms of Sulfur .

The molecular formula of Aluminum Sulfate is \(Al_2(SO_4)_3.\) In one molecule of aluminum sulfate, there are 3 sulfur atoms. To calculate the mass of aluminum sulfate, follow the steps below:

Step 1: Calculate the molar mass of aluminum sulfate using the periodic table.Al = 27.0 g/molS = 32.1 g/molO = 16.0 g/mol

(2 × Al) + (3 × S) + (12 × O) = molar mass of \(Al_2(SO_4)_3.\) = 342.2 g/mol

Step 2: Find the number of moles of sulfur in the given number of atoms of sulfur.2\(2.837*10^{26\) atoms of sulfur × 1 mol S/\(6.022 * 10^{23\)atoms S = 0.0470 mol S

Step 3: Use the molar ratio of sulfur to aluminum sulfate to calculate the number of moles of aluminum sulfate.1 mol \(Al_2(SO_4)_3.\) / 3 mol S = 0.333 mol\(Al_2(SO_4)_3.\) per mol S0.0470 mol S × 0.333 mol \(Al_2(SO_4)_3.\)/mol S = 0.0157 mol \(Al_2(SO_4)_3.\)

Step 4: Calculate the mass of aluminum sulfate.0.0157 mol \(Al_2(SO_4)_3.\) × 342.2 g/mol\(Al_2(SO_4)_3.\)= 5.373 g\(Al_2(SO_4)_3.\)

Therefore, the mass of Aluminum Sulfate is 5.373 grams if you have \(2.837*10^{26\) atoms of Sulfur.

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Answer:

A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products. ... A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

Explanation:

Hopefully this is what you needed

Answer:

The heat Q transferred to cause a temperature change depends on the magnitude of the temperature change, the mass of the system, and the substance and phase involved. (a) The amount of heat transferred is directly proportional to the temperature change.

Hope it helps, BE SAFE! :3

Answer:

B. semi-major axis is the answer, I hope that helps

Answer:

B

Explanation:

i think the filtering would make it possible to separate the liquids....

Answer:

My friend is guessing so she says it's letter C

Explanation:

Sorry if she is wrong.