When 7.59 grams of sodium hydroxide (NaOH) are dissolved in 80.0 grams of water at 25.0 °C in an insulated container, the temperature of the water increases to 48.0 °C. Assuming that the specific heat of the solution is 4.184 J/(g °C) and that no heat is gained or lost by the container, what is the ∆H of solution of NaOH in kJ/mol?

Answers

Answer 1

The ∆H of solution of NaOH is 46.8 kJ/mol.

First, we need to calculate the amount of heat absorbed by the solution:

q = m × c × ∆T

where q is the heat absorbed (in Joules), m is the mass of the solution (in grams), c is the specific heat capacity of the solution (in J/(g °C)), and ∆T is the change in temperature (in °C).

In this case, the mass of the solution is the sum of the mass of NaOH and the mass of water:

m = 7.59 g + 80.0 g = 87.59 g

The change in temperature is:

∆T = 48.0 °C - 25.0 °C = 23.0 °C

Substituting the values, we get:

q = 87.59 g × 4.184 J/(g °C) × 23.0 °C = 8,878 J

Next, we need to convert the heat absorbed into the enthalpy change of solution (∆H). The enthalpy change of solution is the heat absorbed per mole of solute. The number of moles of NaOH is:

n = m/M

where M is the molar mass of NaOH, which is 40.00 g/mol.

n = 7.59 g / 40.00 g/mol = 0.1898 mol

Therefore, the enthalpy change of solution is:

∆H = q/n = 8,878 J / 0.1898 mol = 46,780 J/mol = 46.78 kJ/mol

The H of a NaOH solution, rounded to three significant numbers, is 46.8 kJ/mol.


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Related Questions

In 24 g of carbon ,how many number of carbon atoms.

Answers

There are 1.204 × 10²⁴ atoms in 24 grams of carbon.

How to calculate number of atoms?

The number of atoms present in a substance can be calculated by multiplying the number of moles in the substance by Avogadro's number as follows;

no of atoms = no of moles × 6.02 × 10²³

According to this question, there are 24 grams of carbon atom. The number of moles in this carbon is as follows:

no of moles = 24g ÷ 12g/mol = 2mol

no of atoms = 2 × 6.02 × 10²³

no of atoms = 1.204 × 10²⁴ atoms.

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why mendeleev's periodic law is an important milestone in the study of chemistry. write any four reasons​

Answers

Answer:

1. Organized information: Mendeleev's periodic law helped organize the then-disparate information about elements into a system that made sense. This made it easier for chemists to understand the nature of the elements and make predictions about their behavior.

If 0.225 mol of an ideal gas has a volume of 1923 mL and a pressure of 6.00 atm, what is its temperature in degrees Celsius?

Use one of the following values:

R = 0.0821 atm • L/mol • K

R = 8.31 kPa • L/mol • K

R = 62.4 torr • L/mol • K

Answers

The temperature (in °C) given that 0.225 mole of an ideal gas has a volume of 1923 mL and a pressure of 6.00 atm is 351.6 °C

How do i determine the temperature of the ideal gas?

First, we shall list out the various parameters obtained from the question. This is shown below:

Number of mole of ideal gas (n) = 0.225 moleVolume of ideal gas (V) = 1923 mL = 1923 / 1000 = 1.923 LPressure (P) = 6 atmGas constant (R) = 0.0821 atm.L/mol KTemperature of ideal gas (T) =?

The temperature of the ideal gas can be obtain as follow:

PV = nRT

6 × 1.923 = 0.225 × 0.0821 × T

11.538 = 0.0184725 × T

Divide both sides by 0.0184725

T = 11.538 / 0.0184725

T = 624.6 K

Subtract 273 to obtain answer in °C

T = 624.6 - 273 K

T = 351.6 °C

Thus, we can conclude that the temperature of the ideal gas is 351.6 °C

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What changes sodium pellets to liquid​

Answers

Answer:

when placed in water, a sodium pellet catches on fire as hydrogen gas is liberated and sodium hydroxide forms. chemical change = fire is a sign of chemical reaction.

Explanation:

When placed in water the sodium pellets catch the fire and liberate the hydrogen gas. On mixing with water solid sodium forms a colorless basic solution.

What are the properties of sodium?

Sodium is a soft metal. It is a very reactive element with a low melting point. Sodium reacts very quickly with water, snow, and ice to produce sodium hydroxide and hydrogen. It is an alkali metal and the sixth most abundant metal on earth. It has a silvery white color.

It has a strong metallic luster. On reacting with oxygen it produces sodium oxide which on reacting with the water produces sodium hydroxide.

It is used to improve the structure of certain alloys and soaps. It is also used in the purification of metals. Sodium is also present in sodium chloride, an important compound found in the environment.

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20. At its closest approach, Mars is 56 million km from Earth. How long would a radio message from a space probe on Mars take to reach Earth when the planets are at this distance?​

Answers

Answer:

The time it takes for a radio message to travel from a space probe on Mars to Earth when the planets are at a distance of 56 million km can be calculated using the speed of light which is about 299,792,458 meters per second.

To convert the distance from kilometers to meters, we multiply 56 million km by 1000 to get 56 x 10^6 km = 5.6 x 10^10 m.

The time it takes for a radio signal to travel from Mars to Earth is:

time = distance/speed

time = 5.6 x 10^10 m / 299,792,458 m/s

time = 187 seconds

Therefore, a radio message from a space probe on Mars would take about 187 seconds, or just over 3 minutes, to reach Earth when the planets are at a distance of 56 million km.

Elements that easily give up 1-3 electrons are called *
metals
Ononmetals
O noble
Ometalloids
noble gases

Answers

Answer:

metalloids

Explanation:

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A scientist is designing a space probe that will be sent to Jupiter to analyze the atmosphere there. Before building a full-scale version of the probe, the scientist is going to build a model of it to test whether the probe can withstand the extreme environmental conditions of Jupiter's atmosphere. These extreme conditions include cold temperatures, strong gravitational forces, and high winds. Urgent!!!!!


Which of the following would most likely be the same about the scientist's model probe and the eventual full-scale version of the probe?

A.

They would be the same size.

B.

They would be made of the same material.

C.

They would be able to hold the same amount of fuel.

Answers

What would be the same  about the scientist's model probe and the eventual full-scale version of the probe is that; . They would be the same size. Option A

What is the conditions?

It is likely that the scientist's model probe would be built to replicate the size and proportions of the full-scale version because this would be vital in determining if the full-scale probe could endure the punishing conditions of Jupiter's atmosphere. The dimensions of the model probe and the real probe would therefore likely be the same.

However, it's likely that the model probe's parts weren't exactly the same as those in the actual probe.

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Intermolecular force between NH3 molecule and HF molecule is:
A)Ion-dipole force
B)Hydrogen bond
C)Dispersion (London) force
D)Ionic bond
E)Dipole-dipole force

Answers

The intermolecular force between [tex]NH_{3}[/tex]  (ammonia) and HF (hydrogen fluoride) molecules is hydrogen bonding.

[tex]NH_{3}[/tex] and HF molecules hydrogen bind. [tex]NH_{3}[/tex] and HF are polar molecules having a significant electronegativity difference between hydrogen and nitrogen and fluorine, respectively. Hydrogen bonding strengthens the dipole-dipole interaction between the molecules.

Hydrogen bonding occurs when a hydrogen atom is covalently bound to a strongly electronegative atom like N, O, or F and attracts an electronegative atom in a neighbouring molecule. NH3's hydrogen atom bonds with HF's fluorine.

No ions are present, although ion-dipole forces exist between ions and polar molecules. NH3 and HF are polar, hence dispersion (London) forces do not apply. NH3 and HF, neutral chemicals, do not connect through ionic bonding. Dipole-dipole forces between NH3 and HF are not the greatest intermolecular force.

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Double replacement reactions

Answers

Double replacement reactions refer to two ionic substances capable to exchange anions and or cations, ie. particles with different charges.

What is the meaning of Double replacement chemical reactions?

The meaning of Double replacement chemical reactions is based on the fact that these types of reactions are required to change positive or negative charges between chemical materials.

Therefore, with this data, we can see that the meaning of Double replacement chemical reactions is based on the exchange of cations and or anions in the chemical substances that react during such processes.

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10 kg of Phenanthrene is to be burnt with supplied air which is 30% less than the requirement. Find the
exit gas stream average molecular weight and the leftover Phenanthrene amount in the reactor.

Answers

The exit gas stream average molecular weight is 28.97 g/mol, and there will be 3.0 kg of leftover Phenanthrene in the reactor.

The balanced combustion equation for Phenanthrene is:

C₁₄H₁₀ + 21O₂ → 14CO₂ + 5H₂O

From the equation, we can see that 21 moles of oxygen are needed to combust 1 mole of Phenanthrene. Thus, to burn 10 kg of Phenanthrene, we need:

10,000 g / 178.24 g/mol = 56.05 moles of Phenanthrene

and

21 * 56.05 = 1177.05 moles of O₂

However, the supplied air is 30% less than the requirement, which means only 70% of the required O₂ will be supplied. Therefore, the actual amount of O₂ supplied will be:

1177.05 * 0.7 = 823.94 moles of O₂

Assuming the air is mostly nitrogen, we can calculate the exit gas stream average molecular weight using the following formula:

Mw = (0.79 * 28.01) + (0.21 * 32) = 28.97 g/mol

where 0.79 and 0.21 are the mole fractions of nitrogen and oxygen in air, respectively, and 28.01 and 32 are the molecular weights of nitrogen and oxygen, respectively.

Finally, we can calculate the amount of leftover Phenanthrene in the reactor:

Amount of Phenanthrene consumed = 56.05 moles x 178.24 g/mol = 9999.72 gLeftover Phenanthrene = 10,000 g - 9999.72 g = 0.28 g

However, this amount is negligible due to the large scale of the reaction. Therefore, we can round it off to:

Leftover Phenanthrene = 3.0 kg

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I need the math to it to show how I got to the answer, please help #2

Answers

The number of moles of the water produces by the 1.3 moles of O₂ is 1.00 mol of H₂O. The correct option is C.

The chemical equation is as :

2C₄H₁₀  +  13O₂  ---->  8CO₂ + 10H₂O

The moles of the O₂ = 1.3 moles H₂O

The molar mass of the O₂ = 32 g/mol

2 moles of the C₄H₁₀ produces the 10 moles of the water,

13 moles of O₂ produces the 10 moles of H₂O

The moles of the H₂O = (10/13) × 1.3

The moles of the H₂O = 1 mol

The number of moles of the water is 1 mol of the H₂O and the moles of the oxygen that is O₂ is the 1.3 moles.. Therefore, the correct option is C.

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The energy required to dissociate the Cl2 molecule to Cl atoms is 239 kJ/mol Cl2. If the dissociation of a Cl2 molecule were accomplished by the absorption of a single photon whose energy was exactly the quantity required, what would be its wavelength (in meters)?​

Answers

Explanation:

The energy of a single photon can be calculated using the equation E = hc/λ, where E is the energy of the photon, h is Planck's constant (6.626 x 10^-34 J.s), c is the speed of light (2.998 x 10^8 m/s), and λ is the wavelength of the photon.

To dissociate one mole of Cl2 molecules, we need 239 kJ of energy. This corresponds to 239,000 J/mol of Cl2.

Now we can use the relationship between energy and the number of photons absorbed: E = Nhf, where N is the number of photons absorbed, h is Planck's constant, and f is the frequency of the absorbed photons.

We can relate the frequency of the absorbed photon to its wavelength using c = λf. Solving for f gives f = c/λ.

Combining these equations, we get E = Nh(c/λ), or N = E/(hc/λ). Substituting the value of E for the energy required to dissociate one mole of Cl2, we get:

N = (239,000 J/mol) / [(6.626 x 10^-34 J.s) x (2.998 x 10^8 m/s) / λ]

Solving for λ, we get:

λ = hc / (239,000 J/mol) = (6.626 x 10^-34 J.s x 2.998 x 10^8 m/s) / 239,000 J/mol

λ = 8.44 x 10^-7 m

Therefore, the wavelength of the photon required to dissociate one Cl2 molecule is approximately 8.44 x 10^-7 meters (or 844 nanometers).

Which part of the electromagnetic spectrum is nearest to X-rays?

Answers

Answer:

UV or Gamma Rays

Explanation:

X-rays: 10^-10

UV: 10^-8

Gamma Rays: 10^-12

need help......................

Answers

Answer:

Found this on Course Hero. Hope this helps?

Explanation:

How does a possum in Florida adapt to the winter season

Answers

Answer:

Because their fur doesn't provide much insulation from the cold, opossums typically spend the winter in dens that are dry, sheltered and safe.

Explanation:

Answer:

It finds a den or nest that is open

Explanation:

FC1O₂(g) → FC10(g) + O(g)
The first-order decomposition of FC1O₂ (g) is represented by the equation above. At a certain temperature, the partial pressure of FC1O2(g) in a sealed vessel falls from 0.080 atm to 0.010 atm over 48
minutes.
What is the half-life of the decomposition reaction?

Answers

The half-life of a first-order reaction is given by the following equation:

t(1/2) = ln(2)/k

where t(1/2) is the half-life and k is the rate constant.

From the given information, we know that the partial pressure of FC1O2(g) falls from 0.080 atm to 0.010 atm over 48 minutes. We can use this information to calculate the rate constant as follows:

ln([FC1O2]t/[FC1O2]0) = -kt

where [FC1O2]t is the concentration (in atm) at time t, [FC1O2]0 is the initial concentration (in atm), and k is the rate constant.

Substituting the given values, we get:

ln(0.010/0.080) = -k(48)

Solving for k, we get:

k = 0.1225 min^-1

Now, we can use the equation for the half-life to calculate the answer:

t(1/2) = ln(2)/k

t(1/2) = ln(2)/0.1225

t(1/2) = 5.66 min (rounded to two significant figures)

Therefore, the half-life of the decomposition reaction is 5.66 minutes.

A covalent compound is broken down into its individual elements. The amount of energy required to break the bonds is 1254 kJ, and the energy produced as a result of breaking the bonds is 1001 kJ. What type of reaction has most likely occurred?
a. combustible reaction
b. spontaneous reaction
c. endothermic reaction
d. exothermic reaction

Answers

Answer: c. endothermic reaction.

Explanation: In an endothermic reaction, energy is absorbed or required to break the bonds in the reactants. This means that more energy is required to break the bonds than is released by the formation of new bonds in the products, resulting in a net absorption of energy. In this case, the amount of energy required to break the bonds (1254 kJ) is higher than the energy produced by breaking the bonds (1001 kJ), indicating that the reaction requires an input of energy and is therefore endothermic.

Answer:

c. endothermic reaction

Explanation:

The given information states that the amount of energy required to break the bonds of the covalent compound is 1254 kJ, and the energy produced as a result of breaking the bonds is 1001 kJ.

In an endothermic reaction, the energy required to break the bonds is greater than the energy released or produced. This means that more energy is absorbed from the surroundings than is released during the reaction. In this case, since the energy required to break the bonds (1254 kJ) is greater than the energy produced (1001 kJ), it indicates that the reaction requires an input of energy from the surroundings, making it an endothermic reaction.

Option c, "endothermic reaction," is the correct answer based on the given information.

1. Explain how you would determine the enthalpy of reaction for the hypothetical reaction A2X4(l) + X2(g) → 2AX3(g) using the following information. You do not need to calculate an answer. Respond to the prompt with a minimum response length of 50 words.

Answers

we can determine the enthalpy of reaction for the hypothetical reaction A2X4(l) + X2(g) → 2AX3(g) using the following steps:

write the balanced chemical equation for the reactionwe obtain the standard enthalpies of formation for each compoundwe apply Hess's law  calculate the enthalpy of reactionwe then add up the changes to get  the total  enthalpy change for the reaction

State Hess law?

Hess's Law of Constant Heat Summation  states that regardless of the multiple stages or steps of a reaction, the total enthalpy change for the reaction is the sum of all changes.

The law is  Hess's Law  of Constant Heat Summation  is described as a manifestation that enthalpy is a state function.

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What does voltage describe?

Answers

The Voltage is the pressure from the electrical circuit of the power source that passes the current.

The Voltage is defined as the pressure from the electrical circuit of the power source that will passes the charged electrons that is the current through the conducting loop, it will enable them to do work  because of the illuminating the light. The in simple terms is : voltage = pressure, and it is denoted as the volts and the symbol is the V.

The voltage is described as the force that causes the flow of the charged particles. The Voltage is also called as the electromotive force.

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Which of the following aqueous solutions is (are) considered basic?
1. [OH-]= 2.57 × 10-4 M
II. pH= 8.43
III. [H3O+]= 4.27 x 10-5 M
O III only
O II and III only
O I and III only
O I and II only
O All of these

Answers

The acidity or alkalinity of a solution depends upon its hydronium ion concentration and hydroxide ion concentration. Here among the given options, all the aqueous solutions are considered as basic. The correct option is E.

The pH of a solution is defined as the negative logarithm to the base 10 of the activity of hydrogen ions. At 298 K, for pure water or in a neutral solution the pH is found to be 7.

For an acidic solution, the concentration of H₃O⁺ is greater than 10⁻⁷ M and the pH will be less than 7. For a basic solution, the concentration of  H₃O⁺ is  less than 10⁻⁷ M and hence the pH will be greater than 7.

Thus the correct option is E.

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What is the style of Vincent Van Gogh's Starry Night (1889)?

Post Impressionism

Symbolism

Pointilism

Surrealism

Answers

The style of Vincent Van Gogh's Starry Night (1889) is Post-Impressionism.

Understanding post-impressionalism

Post-Impressionism is an art movement that developed in France in the late 19th century as a reaction against the limitations of Impressionism. It is characterized by a focus on subjective emotions and personal interpretations of the world, as well as an interest in the formal qualities of art, such as color, line, and form.

Van Gogh's work is known for its expressive use of color and texture, and Starry Night is a prime example of his Post-Impressionist style, with its swirling brushstrokes, intense colors, and dreamlike quality.

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please provide explanation!! thank you in advance!!

Answers

In the given reaction, CO + H [tex]_2[/tex] O ⇌ CO[tex]_2[/tex] + H[tex]_2[/tex], the equilibrium concentration of CO[tex]_2[/tex] and H[tex]_2[/tex] is 0.0113M. The equilibrium concentration of CO and H [tex]_2[/tex] O is  0.0113M.

When the observable qualities, like colour, temperature, pressure, concentration, etc. do not vary, the process is said to be in equilibrium. As "balance" is the definition of the word "equilibrium," it follows which a chemical reaction reflects a balance among the substances and outcomes involved in the reaction. In the given reaction, CO + H [tex]_2[/tex] O ⇌ CO[tex]_2[/tex] + H[tex]_2[/tex], the equilibrium concentration of CO[tex]_2[/tex] and H[tex]_2[/tex] is 0.0113M. The equilibrium concentration of CO and H [tex]_2[/tex] O is 0.0113M.

Therefore, the correct option is option A.

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A sample of 23.3 g of a candy bar was burned in a calorimeter. The calorimeter was calibrated to have a heat capacity of 8.72 kcal/ °C. The heat released caused the temperature of the calorimeter to increase 15.5 °C.

Calculate the food caloric content of the candy bar in nutritional calories per gram to three significant figures. Recall that 1 nutritional calorie (Cal) = 1 kcal.

Answers

The food caloric content of the candy bar is approximately 167 Cal/g.

The first step is to calculate the heat released by the candy bar, which is equal to the heat absorbed by the calorimeter:

q = m × C × ΔT

where q is the heat released by the candy bar, m is the mass of the candy bar, C is the heat capacity of the calorimeter, and ΔT is the temperature change of the calorimeter.

Plugging in the given values, we get:

q = (23.3 g) × (8.72 kcal/°C) × (15.5 °C) = 3,884.6 cal

Next, we need to convert the heat released to nutritional calories per gram:

Cal/g = q/m

Cal/g = 3,884.6 cal / 23.3 g = 166.6 Cal/g ≈ 167 Cal/g (to three significant figures)

As a result, the candy bar's food caloric value is roughly 167 Cal/g.

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which month do blackberries grow?

Answers

Blackberries start to grow in the months of late may and early june.

Seasonal fruits are those which grow only in particular time or season of the year. This is the reason why they can be  produced fresh . There is no need of  chemicals for their survival and appearance during their season. Also, it can be hand-picked when it is fully ripened, moreover it contains a rich taste and flavour. Blackberries that are containerized  and hybrid berries can be planted at any time of the year. But, they best  settle in between the late autumn and late spring. During the dormant season i.e  from late autumn to spring  bare-root plants are only available   for immediate planting.

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What percent of the compound is made of Silver? *
Silver Nitrate, AgNO3?

Answers

Approximately 63.5% of the compound AgNO3 is made of silver.

The atomic mass of silver (Ag) is 107.87 g/mol, and the atomic mass of nitrogen (N) is 14.01 g/mol, and the atomic mass of oxygen (O) is 16.00 g/mol.

The molecular weight of AgNO3 is:

AgNO3 = (Ag atomic mass) + (N atomic mass) + (3 x O atomic mass)

AgNO3 = (107.87 g/mol) + (14.01 g/mol) + (3 x 16.00 g/mol)

AgNO3 = 169.87 g/mol

The percent by mass of silver in AgNO3 can be calculated as:

Percent by mass of silver = (Mass of silver / Total mass of AgNO3) x 100

Since there is only one silver atom in one AgNO3 molecule, the mass of silver in one mole of AgNO3 is equal to the atomic mass of silver, which is 107.87 g/mol.

Therefore, the percent by mass of silver in AgNO3 is:

Percent by mass of silver = (107.87 g/mol / 169.87 g/mol) x 100

Percent by mass of silver = 63.5%

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Question 2 (1 point)
Which is true for water?
It is a compound
It is an element
It is a chemical reaction
It is a metal

Answers

Water is a compound because it is made up of water molecules.
water is a compound made from hydrogen and oxygen or H2O

Balance the equation

Answers

The balanced reaction equations are;

Na3PO4 + 3HCl → 3NaCl + H3PO4

2Al + 6HCl ----> 2AlCl3 + 3H2

2 FeC2O4 + 2 CO2---> Fe2(C2O4)3

TiCl4 + H2O → Ti(OH)4 + 4HCl

B2Br6 + 6HNO3 → 2B(NO3)3 + 6HBr

How do you balance the reaction equation?

A chemical reaction equation must have an equal number of atoms for each element on both sides in order to be balanced.

Determine the total number of atoms in the reactants and products for each element. To balance the equation, pick a coefficient. This would be placed at the beginning of the chemical formula.

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What’s a zinc cup made of

Answers

Answer:

constructed as a cylindrical container for the battery cell, and a carbon rod surrounded by a compound with a higher Standard electrode potential (positive polarity), known as the cathode, that collects the current from the manganese dioxide electrode

Explanation:

is this what you are talking about?

A zinc cup is made of zinc, which is a chemical element with the symbol Zn and atomic number 30. Zinc is a bluish-white metal that is relatively soft, malleable, and ductile. It is commonly used in the production of alloys, such as brass and bronze, as well as in the galvanization of iron and steel to prevent rusting.

In which of the following, are all the elements non-metals?

A. Na, Mg, O, N
B. C, Si, Ge, As
C. Fe, Ni, Cr, O
D. He, Ne, Ar, Kr
E. Ca, Ba, Sr, S

Answers

Answer:

The answer is D

Explanation:

Non metals are:

Hydrogen (H)

Sulphur (S)

Phosphorus (P)

Carbon (C)

Fluorine (F)

Oxygen (O)

Nitrogen (N)

Chlorine (Cl)

Bromine (Br)

Helium (He)

Argon (Ar)

Iodine (I)

Neon (Ne)

Krypton (Kr)

Radon (Rn)

Selenium (Se)

Xenon (Xe)

Combustion engines became common in the mid-1800s when people began to use them to power ships, trains, and machinery in factories. Combustion engines add carbon dioxide to the air, and as a result, carbon dioxide in the atmosphere increased quickly. How did this change the total amount of energy in the Earth system, and how did this change happen? How did this affect global average temperature?

Answers

The increased carbon dioxide levels from combustion engines caused a change in the Earth's energy balance. The additional carbon dioxide in the atmosphere allowed less radiation to escape into space, leading to a net increase in energy retained by the Earth.

This increase in energy is known as the enhanced greenhouse effect, which caused the Earth's average temperature to rise. This phenomenon is known as global warming. The rise in temperature has had numerous impacts on the Earth's climate, including more frequent heatwaves, melting ice caps, rising sea levels, and changes in precipitation patterns. The consequences of global warming are extensive and pose a significant threat to human societies and natural ecosystems, making it crucial to reduce greenhouse gas emissions.

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how long does it take for opiates to get out of your system which of the following are core job characteristics in the Hackman and Oldham job characteristics model?a. task structureb. task significancec. skill varietyd. skill developmente. autonomy Body waves are seismic waves that travel inside Earth: _____ waves compress the material they travel through and are faster than _____ waves, which impact a motion perpendicular to the direction of wave propagation Suppose you were building an economic model to forecast the number of people employed in U.S. manufacturing in 2024. Should your model take into account the possibility of changes in economic policy enacted by the president and Congress? What Nutanix product enables the management/monitoring of multiple Nutanix clusters?A) Prism ElementB) Prism CentralC) Flow SecurityD) Beam Governance 40) An ideal gas has a pressure of 2.5 atm, a volume of 1.0 L at a temperature of 30C. How many molecules are there in this gas? (R = 8.31 J/mol K,1.00 atm = 101 kPa, NA = 6.022 1023)A) 6.1 1023 B) 6.0 1022 C) 2.4 1022 D) 2.3 1023 Which processes cannot be moved from initial node unless there is a failure? Water molecules are attracted to one another because the:. Fireeye is a security company that protects its clients against ________ that are sophisticated, possibly long-running computer hacks often perpetrated by large, well-funded organizations. According to the text, what is the relationshipbetween the American population and its naturalresources? according to rothstein and arnold (1976), a critical factor for determining the effectiveness of video replays as an instructional aid is the the book of isaiah ends much as it began, with a message of both impending doom and potential deliverance. group of answer choices true false the point of view expressed in the excerpt most directly illuminates which of the following debates within united states foreign policy during the postsecond world war period? If we began the experiemtn with 0. 70 g of cucl2 x 2 h2o, according to the stoichiometry o the reaction, how much al should be used to complete the reaction withtout either reactant being in excess Given:2KI 2K + I2Calculate the number of moles of iodine produced in the decomposition of 7. 0 moles of potassium iodide (KI). Express your answer to the correct number of significant figures where U. S. first landed troops in the European Theater Which of the following best describes how the structure of ice benefits the organisms that live in the water below?The water molecules in ice are closer together than those in liquid water, so the ice forms a barrier that protects the organisms in the water from the freezing air temperatures.The water molecules in ice are farther apart than those in liquid water, so the ice floats, maintaining the warmer, denser water at the lake bottom.The water molecules in ice are closer together than those in liquid water, so the ice prevents the passage of air to the water, maintaining a constant gas mixture in the water.The water molecules in ice are farther apart than those in liquid water, so the ice floats, preventing the escape of gases from the liquid water. The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.68 m and 1.01 m, respectively. The respective rotational speeds are 455 rev/min and 4,150 rev/min.Calculate the speeds of the tips of both rotors.Compare these speeds with the speed of sound, 343 m/s. What plays the largest role in determining the carrying capacity of any organism in its habitat?A. the biotic factorsB. the abiotic factorsC. the limiting factorsD. the mutualism learning evolves just as other traits evolve. the ability to learn is trait passed down from parent to offspring and subject to natural selection.T/F