2 ZnS + 30₂ → 2 ZnO +2 SO₂

If 410.42 grams of SO2 are produced, how many grams of O₂ were reacted?
(Please show work)

to describe how proteins are produced

Answer:

to describe how proteins are produced

Explanation:

The correct answer for the final volume read on the graduated cylinder = 4.72 ml ^3 .

density of lead is 11.4g/cm³,

quantity of water = 20.0 mL = 20 gram

sample of lead = 33.9 g

density = mass / volume

total mass = 20+ 33.9 = 53.9

volume = mass/ density

volume = 53.9/ 11.4

volume = 4.72 ml ^3

Graduated cylinders are long, slender vessels used to measure liquid volumes. They are not meant to be mixed, stirred, heated, or weighed. Graduated cylinders typically range in size from 5 mL to 500 mL. It is a tall narrow container with a volume scale used specifically for measuring liquids. These 100 mL glass graduated cylinders are used to accurately and easily measure and dilute liquids! These class-A, lab-quality graduates are built to deliver precise measurements while resisting breakage and a wide range of chemicals. A plastic volume marker is included.

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(a) \(C*H_{3}*C*H_{2}*C*H_{2}*COOH\): Class: Carboxylic Acid; IUPAC Name: Pentanoic Acid.

IUPAC stands for International Union of Pure and Applied Chemistry. It is an international scientific organization that sets standards for chemical nomenclature, terminology, measurements, and safety. It works to promote the science of chemistry around the world and provides guidance on topics such as chemical nomenclature, terminology, and measurements, as well as chemical safety.

(b) \(CHCI_2CH_2CH_3\): Class: Halogenated Alkane; IUPAC Name: 1-Chloro-2-methylpropane

(c) \(C*H_{3}*C*H_{2}*COC*H_{3}\): Class: Ketone; IUPAC Name: 3-Methylbutan-2-one

(d) \(C*H_{3}*COOC*H_{3}\): Class: Ester; IUPAC Name: Methyl Propanoate

(e) \(C*H_{3}*C*H_{2}*OC*H_{3}\): Class: Ether; IUPAC Name: Diethyl Methane

(f)\(C*H_{3}*C*H_{2}*C*H_{2}*C*H_{2}*COOC*H_{2}*C*H_{3}\): Class: Carboxylic Acid; IUPAC Name: 2-Methylpentanoic Acid
2. B. CH₃CONH2 is an amine.
3. (a) Hexanoic Acid: CH₃CH₂CH₂CH₂COOH
(b) Butanal: CH₃CH2CHO
(c) Pent-1-ene: CH2=CHCH₂CH₂CH₂CH₃
(d) 1-Bromo-2-methylbutane: CH₃CH₂CHBrCH₃
(e) Ethyl Methanoate: CH₃COOCH₂CH₃
(f) Methoxypropane: CH₃OCH₂CH₂CH₃
(g) But-2-yne: CH3C≡CHCH₂CH₃
4. C. 1-bromopropene.

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Answer:

3-³ x (1/3)^-5 x (1/3)-²

Applying Indices

3^-3 x (3-¹)^-5 x (3-¹)^-2

When the negative signs interact

they become positive

We now have

3^-3 x 3^5 x 3^2

= 3^-3 x 3^7

=3⁴.

Answer:

The proportionality constant ( Henry’s constant) = 2.32 * 10^-5 M/kPa

Explanation:

Here in this question, we are concerned with calculating the proportionality constant for this gas.

Mathematically, we can get this from Henry law

From Henry law;

Concentration = Henry constant * partial pressure

Thus Henry constant = concentration/partial pressure

Henry constant = 0.00290 M/125 kPa = 2.32 * 10^-5 M/kPa

Answer:

c

Explanation:

please give me brainliest

The specific heat capacity of the ring of mass 3.1 g is 753.3 J/kg.°C.

Specific heat capacity is defined as the amount of heat energy needed to increase the temperature of 1kg of a substance by 1°C.

To calculate the specific heat capacity of the the ring, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the specific heat capacity of the ring is 753.3 J/kg.°C.

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Therefore, the correct option is: an action potential would be created, and it would propagate in both directions down the axon (both toward the axon hillock and the axon terminal).

If an electrode were inserted into the middle of an axon halfway between the axon hillock and the axon terminal, and a depolarizing stimulus was triggered to bring that area of the axon to −60mV, an action potential would be created, but it would propagate in both directions down the axon (both toward the axon hillock and the axon terminal).The middle of an axon is a region that contains ion channels that allow ions to pass through when triggered.

An action potential is triggered once there is a depolarization of the membrane potential, and this spreads out in a wave-like manner to the axon terminal. This would result in the movement of the depolarization wave in both directions from the point where the electrode was inserted. Since the depolarization wave moves in both directions, the action potential created will be propagated to both the axon terminal and axon hillock.

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4.56g excess reactant is left over when 17.0 g of potassium hydroxide (KOH) reacts with 20.0 g of iron (III) nitrate (Fe(NO₃)₃)

Reactants are raw materials that react with one another and form products.

Here given balanced reaction is

2KOH + Fe(NO₃)₂ → Fe(OH)₂ + 2KNO₃

Then we have to calculated the masses of KOH and Fe(NO₃)₂ from the balanced reaction

Molar mass of KOH = 39+16+1 = 56g/mol

Mass of KOH = 2×56 = 112g

And the molar mass of Fe(NO₃)₂ = 56+2[14+(16×3)]

= 56+2[14 + 48)]

= 56+2[62]

= 56+124

= 180g/mol

Then from the balanced equation

112g of KOH and 180g/mol of  Fe(NO₃)₂

Then the 17 g of KOH = 17×180/112g

= 27.32 g of Fe(NO₃)₂

Then for 20.0 g of iron (III) nitrate

Therefore Xg of KOH = 112×20/180

Xg of KOH = 12.44g

Thus 12.44g of KOH reacted

Therefore we have determine the leftover mass of the excess reactant

Mass of KOH leftover = ?

Mass of KOH leftover = (Mass of KOH given) – (Mass of KOH that reacted)

Mass of KOH leftover = 17 - 12.44g

Mass of KOH leftover = 4.56g

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Sulfuric acid is highly toxic and can cause severe burns if it comes into contact with the skin or eyes.

When sulfuric acid and calcium hydroxide are mixed, calcium sulfate is produced as a salt. Salt is a type of ionic compound that is formed by the reaction of an acid and a base. Salts are generally formed by the reaction of an acid with a metal or a base. These compounds are used in the food industry as flavorings and preservatives, in the medical industry as medications, and in many other areas of industry.

Calcium hydroxide, also known as hydrated lime, is a chemical compound that is formed when calcium oxide reacts with water. It is commonly used in construction, agriculture, and the food industry. Calcium hydroxide is used in the construction industry to make plaster and cement, in agriculture as a fertilizer, and in the food industry to preserve foods.

Sulfuric acid is a strong, corrosive acid that is used in many industrial processes, such as the production of fertilizers, dyes, and detergents. It is also used in the production of lead-acid batteries and in the petroleum industry to refine crude oil.

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The compound ionizes completely in water and there are no intact molecules of the compound remaining in solution. There are the applicable term.

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Disclaimer: The question given in the portal is incomplete. Here, The complete question.

Question: Compound is described as a strong acid. What does this term mean? select all that apply.

a) The molecules of the compound hold tightly to their H atoms.

b) The compound ionizes completely in water.

c) There are no intact molecules of the compound remaining in solution.

d) The molarity of the solution is high.

e) The molecules of the compound are strongly bonded and do not ionize.

Answer:

Explanation:

South Africa, the USA (Nevada, Alaska), Russia, Australia and Canada.

When thermal equilibrium is reached, the final temperature of the ice-water mixture will be 0°C.

We can use the equation Q = m * c * ΔT to calculate the amount of heat exchanged between the ice and water, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.

First, we need to calculate the heat energy required to raise the temperature of the ice from 0°C to 0°C (i.e., to melt the ice). We know that the specific heat of fusion of ice is 334 J/g, so the heat energy required is:

Q₁ = m * Lf = 30 g * 334 J/g = 10,020 J

Next, we need to calculate the heat energy required to raise the temperature of the resulting water from 0°C to 20°C. The specific heat capacity of water is 4.184 J/g·°C, so the heat energy required is:

Q₂ = m * c * ΔT = 100 g * 4.184 J/g·°C * 20°C = 8,368 J

Since there is no heat loss to the surroundings, the heat energy gained by the water (Q₂) is equal to the heat energy lost by the ice (Q₁) when they reach thermal equilibrium. Therefore:

Q₁ = Q₂

10,020 J = 8,368 J + m₂ * c₂ * ΔT

m₂ * c₂ * ΔT = 1,652 J

Since the final temperature is 0°C, the change in temperature (ΔT) is -20°C. Substituting the values we know:

m₂ * c₂ * (-20°C) = 1,652 J

m₂ * c₂ = -82.6 J/°C

Assuming the density of water is 1 g/mL, the mass of the resulting water is:

m₂ = 100 g + 30 g = 130 g

Therefore, the specific heat capacity of the resulting water is:

c₂ = -82.6 J/°C / 130 g = -0.636 J/g·°C

The negative sign indicates that the resulting water has a lower specific heat capacity than pure water. This is because the dissolved solids in the water (such as salts and minerals) increase the density of the water, making it more difficult to heat up.

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Engineers designing a new energy efficient product will make the first model called a prototype.

A prototype is the initial model that engineers create in order to test and evaluate the feasibility of their design. This model is usually made using cheaper and more readily available materials compared to the final product.

The purpose of the prototype is to identify any design flaws or areas for improvement, and make the necessary changes before moving forward with the production process. Engineers will often make multiple prototypes until they are satisfied with the design and performance of the product.

In the case of energy-efficient products, engineers will focus on developing a prototype that utilizes minimal energy consumption while still providing the desired level of functionality. This requires careful consideration of the materials and components used in the product, as well as the design of the product itself.

Once the prototype has been tested and refined, engineers can move on to creating the final product. By creating a prototype first, engineers can ensure that their design is both efficient and effective, ultimately resulting in a product that is better for both the environment and the consumer.

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Answer:

When chromium chloride, CrCl2, is dissolved in water, the temperature of the water decreases. ... The attractive forces between water molecules and chromium and chloride ions is stronger, because the reaction is endothermic means the energy released in formation is less than the energy required in breaking bond.

Answer:

Because both the bonding electrons come from the oxygen atom. Explanation: A coordinate covalent bond is formed when both the bonding electrons are coming from the same atom

Explanation:

Answer:

EF-2

hurricane/tropical cyclone

recurrent weather

The two types of downbursts are macrobursts and microbursts. A macroburst affects an area that's greater than 2.5 miles across. A microburst affects an area that's less than 2.5 miles across.

A funnel cloud forms as a spinning column of air that descends from a thundercloud. However, a funnel cloud doesn't become a tornado until it actually touches the ground. Once it touches the ground, where it begins to pick up dust and debris, it becomes a tornado.

Tropical cyclones, such as hurricanes, are fueled by warm ocean waters. Once they make landfall, they lose this fuel source and begin to lose strength.

The heat index and the wind chill index are similar because both consider other factors that affect how air temperature feels. The heat index considers relative humidity in relation to air temperature. Higher humidity makes air temperatures feel hotter. The wind chill index considers wind speed in relation to air temperature. Higher wind speeds make air temperatures feel colder.

Heat waves—Heat waves can be very dangerous when accompanied by high humidity. The human body depends on evaporation of sweat to cool itself down on hot days. When humidity levels are high, the rate of evaporation slows down. Consequently, it becomes harder for the body to cool itself and much easier for the body to overheat.

Explanation:

took the testoronee

Answer:

0.208 mol B

Explanation:

There are 6.02 × 10^23 atoms in one mole of a substance, according to Avagadro's law.

According to this question, there are 1.25 x 10^23 atoms of Boron. This means that the number of moles in the Boron atom can be calculated thus:

number of moles (n) = number of boron atoms (nA) ÷ Avagadro's number

n = 1.25 x 10^23 ÷ 6.02 × 10^23

n = 0.2076 × 10^(23-23)

n = 0.208 × 10^0

n = 0.208 × 1

n = 0.208 moles of Boron

To prepare a 1.27 L aqueous solution of red dye #40 with an absorbance of 0.251, you would need 1.05 grams of red dye #40. By accurately determining the mass of red dye #40 needed, one can ensure the desired concentration and absorbance in the prepared solution.

The relationship between absorbance (A), molar absorptivity (ε), concentration (C), and path length (l) is given by the Beer-Lambert Law equation: A = ε * C * l.

We are given the molar absorptivity (ε) as 2.13×10^4 M^−1cm^−1, the path length (l) is typically assumed to be 1 cm, and the absorbance (A) is 0.251. We need to calculate the concentration (C) of the red dye #40 in the solution.

Using the Beer-Lambert Law equation, we can rearrange it to solve for concentration (C): C = A / (ε * l).

Substituting the given values into the equation:

C = 0.251 / (2.13×10^4 M^−1cm^−1 * 1 cm)

Next, we need to convert the concentration from molar (M) to grams per liter (g/L) using the molar mass of red dye #40. The molar mass is given as 496.42 g/mol.

To convert from molar concentration to grams per liter, we multiply by the molar mass:

Concentration (g/L) = Concentration (M) * Molar mass (g/mol)

Concentration (g/L) = C * 496.42 g/mol

Finally, we can calculate the mass of red dye #40 needed to prepare the solution by multiplying the concentration (g/L) by the volume of the solution (1.27 L).

Mass = Concentration (g/L) * Volume (L)

After performing the calculations, the mass of red dye #40 required to prepare a 1.27 L aqueous solution with an absorbance of 0.251 is found to be approximately 1.05 grams. This calculation considers the molar absorptivity of the dye, the absorbance of the solution, and the volume of the solution. The molar mass of red dye #40 is used to convert the concentration from molar to grams per liter. By accurately determining the mass of red dye #40 needed, one can ensure the desired concentration and absorbance in the prepared solution.

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Answer:

solubility

Explanation:

the solid substances will be added to water to see which one is soluble

Answer:

A: More liquid water molecules will change to water vapor until a new equilibrium is reached.

Explanation:

I'm not good at explaining but I took the quick check and this answer was correct b)

The increase in liquid water thus results in the more formation of water vapor, for reaching new equilibrium. Thus, option A is correct.

Equilibrium is the condition of the equal concentration of the product and reactant in the chemical equation. The reaction at equilibrium has constant rate.

The increase in the concentration of the product or reactant results in the distortion of the equilibrium condition, and the reaction will be processes in the forward or backward direction, according to equilibrium principle.

The addition of liquid water molecules to the reaction results in the increase in the concentration of the reactants. The reaction starts approaching the equilibrium until the concentration of liquid water, and gaseous water become same.

The increase in liquid water thus results in the more formation of water vapor, for reaching new equilibrium. Thus, option A is correct.

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Answer:

212 degrees

Explanation:

Answer:

212 degrees Fahrenheit

Explanation:

Similarly, if we heat a volume of water above 100 degrees Celsius, or 212 degrees Fahrenheit, water changes its phase into a gas called water vapor. Changes in the phase of matter are physical changes, not chemical changes.

The shape of 2s and 3p orbitals would be similar to 1s and 2p orbitals respectively but 2s and 3p are larger in size and have a larger number of nodes.

What is an orbital?

A three-dimensional representation of an electron's most likely position within an atom is called an orbital. You should be familiar with the four types of orbitals: s, p, d, and f. (sharp, principal, diffuse and fundamental). There are specific orbital combinations found within each of an atom's shells. There are only s orbitals in the n=1 shell, s and p orbitals in the n=2 shell, s, p, and d orbitals in the n=3 shell and all four types of orbitals in the n=4 up shells.

An orbital's size and the number of nodes increase with increasing primary quantum number n. As a result, the 3p orbital is bigger and has more nodes than the 2p orbital, whereas the 2s orbital is bigger and has fewer nodes.

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Answer:

See the answer below

Explanation:

A drop of syrup would spread through water because water molecules interact and dissolve the syrup molecules and the molecules of the syrup randomly diffuse into the water from the region of higher concentration to the region of lower concentration till they become evenly distributed in the water.

Once the molecules become evenly distributed into the water, an equilibrium is established and there is no longer net movement.

Answer:

If there is a decrease in the amount of carbon dioxide or methane, the amount of energy leaving the Earth system increases, so less energy enters than exits. When less energy enters than exits, Earth's surface absorbs less energy.

Explanation:

Nitrogen is an element that is present in the atmosphere but in a large amount and also makes up the earth's atmosphere up to 78%.

We know that the most abundant elements which are present in the earth's atmosphere are gases, so gas is the most common and abundant element in the earth's atmosphere.

The most abundant naturally occurring gas in the earth's atmosphere is nitrogen (N2). Nitrogen makes up 78% of the earth's atmosphere while oxygen is the second most abundant naturally occurring gas in the earth's atmosphere which is about 21%. The inert gas Argon is also present in the earth's atmosphere and is the third most abundant gas in the earth's atmosphere which is about 0.93%.

So we can conclude that the most abundant element in the earth's atmosphere is nitrogen which makes the atmosphere up to 78%.

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To make a solution of lemonade, lemon juice and sugar are dissolved in water. the water is the Solvent in this example.

Solvent Examples. Common examples of solvents consist of water, ethanol, methanol, and acetone. The term 'solvent' may be defined as a substance that has the ability to dissolve a given solute to form a solution with it.

Solvents are substances that are used to dissolve the solutes used in the formulation. These solutes can be solids, liquids, or gaseous in nature. Thus solvents are used to get a solution upon interacting the solute with a suitable solvent.

Solvents are usually, however not usually, liquids. They can also be gases or solids. The material dissolved in the solvent is referred to as the solute. collectively, the solvent and solute comprise the solution.

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Answer:

phosphorus cycle

Explanation:

the phosphorus cycle because 302 equals to it