In the steroid nucleus, a carbonyl group could NOT be located on which of the following carbons?

A. 8

B. 4

C. 17

D. 11

Answer:

In 2C2H6, The C= 4 and H= 12

Answer:

4 i think

Explanation:

Essential for ALL multimedia projects:

Essential for SOME multimedia projects:

The table presents a list of multimedia devices and applications and identifies whether they are essential for all multimedia projects or just for some.

Video editing software: This is an essential device for all multimedia projects because it allows users to edit and manipulate video footage, audio tracks, and other multimedia elements.

Powerful graphics card: This is an essential device for all multimedia projects because it enables users to process high-quality images, videos, and animations with speed and efficiency.

Lastly, High-resolution monitor: This is an essential device for all multimedia projects because it provides a clear and detailed display of multimedia content, allowing users to view and edit their work more effectively.

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Answer:

No. of neutrons = 27 - 13 = 14

No. of protons = No. of electrons = 13

Hope it helps you

Answer:

Sr

Explanation:

because it's electronegativity is the highest.

The equilibrium vapor pressure with respect to water (eow) is 259.9 Pa. assume that saturation vapor pressure is same as equilibrium vapor pressure.

Therefore, the RH at the frost point is  

RH = (eow / saturation vapor pressure) × 100

= (259.9 Pa / 259.9 Pa) × 100

= 100%

b) At T = -11 °C, we need to compare the equilibrium vapor pressure with respect to water (eow) and the equilibrium vapor pressure with respect to ice (coi) to determine if ice particles will form. From the given table, at T = -11 °C, the equilibrium vapor pressure with respect to water (eow) is 237.7 Pa, and the equilibrium vapor pressure with respect to ice (coi) is 165.3 Pa.

The air is supersaturated with respect to ice, and the presence of Kaolinite particles can provide surfaces for water droplets to condense onto, leading to the formation of ice particles.

c) At T = -12 °C, we compare the equilibrium vapor pressure with respect to water (eow) and the equilibrium vapor pressure with respect to ice (coi). From the given table, at T = -12 °C, the equilibrium vapor pressure with respect to water (eow) is 217.3 Pa, and the equilibrium vapor pressure with respect to ice (coi) is 181.2 Pa.

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The d-orbital starts in the third energy level (n = 3) of an atom.

Each energy level can contain one or more sublevels, including s, p, d, and f sublevels. The first energy level (n = 1) has one s orbital and can hold a maximum of 2 electrons. The second energy level (n = 2) has one s orbital and three p orbitals, allowing for a maximum of 8 electrons. The third energy level (n = 3) has one s orbital, three p orbitals, and five d orbitals, accommodating a maximum of 18 electrons.

The d-orbitals are found in the third energy level, corresponding to the third period of the periodic table. Therefore, the period number for the energy level where the d-orbital starts is 3.

The filling order of orbitals follows the pattern: 1s, 2s, 2p, 3s, 3p, 4s, 3d, and so on. The d-orbitals start filling after the p-orbitals in the third energy level. The electron configuration for the third energy level is written as 3s^2 3p^6 3d^1-10, depending on the element.

For example, the electron configuration of iron (Fe) is 1s^2 2s^2 2p^6 3s^2 3p^6 3d^6 4s^2. This configuration indicates that the d-orbitals of iron are half-filled with 5 electrons.

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1) Volume of the sample.

List known and unknown values

Density: 0.768 g/mL

Mass: 23.9 g

Volume:

2) Set the equation

ρ: Density

m: mass

v: volume

Plug in the known values and solve for v.

The volume of the sample is 31.1mL.

Answer: 1010

Explanation:

Look at the chart

Answer:The Sun and the planets formed together, 4.6 billion years ago, from a cloud of gas and dust called the solar nebula. A shock wave from a nearby supernova explosion probably initiated the collapse of the solar nebula. The Sun formed in the center, and the planets formed in a thin disk orbiting around it.

Answer:

the answer is C

Explanation:

This is because group6 elements are diatomic and when they are chemically combined their subscript 2 cancels out

The formula for the compound with the atomic ratio of phosphorus : sulfur : chlorine 1:1:3 is PCl₃S.

An atom is known as the basic unit of matter and the defining structure of elements. The term "atom" originates from the Greek word for indivisible, because it was once thought that atoms were the smallest things in the universe and could not be divided.

Atoms consist of a nucleus, which is made up of protons and neutrons, surrounded by electrons. The number of protons in the nucleus of an atom determines the atomic number of that element, and therefore its identity. The electrons are arranged in shells around the nucleus and determine the chemical properties of the element.

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Answer:

HCI

Explanation:

Hope this helps. :))))

Answer:

\( \huge{ \boxed{1.213 \: \text{moles}}}\)

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

\( \bold{n = \frac{N}{L}} \\ \)

where

From the question

N = 7.30 × 10²³ NaCl molecules

\(n = \frac{7.30 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{7.30}{6.02} \\ = 1.2126\)

We have the final answer as

Answer:

308.15

Explanation:

308.15K − 273.15 = 35°C

Answer:

Volume of one mole of any gas at NTP is

(b) 22.4 litre

Answer:

22.4L

Explanation:

One mole of any gas at STP weighs 22.4L.

STP stands for Standard Temperature and pressure

The order of intermolecular forces in the hydrides of group 5A is NH3 > PH3 > AsH3 > SbH3.

This is because the intermolecular forces are inversely proportional to the size of the molecules.

:Intermolecular forces are the forces of attraction and repulsion that exist between molecules. These forces can be classified into four categories:London dispersion forces, dipole-dipole forces, hydrogen bonding, and ion-dipole forces. The strength of these forces increases as the size of the molecule increases.Therefore, the order of intermolecular forces in the hydrides of group 5A is NH3 > PH3 > AsH3 > SbH3.

This is because the size of the molecules decreases as you move from NH3 to SbH3. NH3 has the highest intermolecular forces because it is the largest molecule, while SbH3 has the lowest intermolecular forces because it is the smallest molecule.

Summary: The hydrides of group 5A are NH3, PH3, AsH3, and SbH3. The order of intermolecular forces in these molecules is NH3 > PH3 > AsH3 > SbH3. This is because the intermolecular forces are inversely proportional to the size of the molecules.

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Edible mushrooms: Consuming edible mushrooms is safe and provides health advantages like fiber, vitamins, and minerals.

Non-Edible mushrooms: Mushrooms that cannot be eaten could be harmful or have unappealing flavors and textures that could be harmful if consumed.

The fruit basket recipe will the specialty store need to fulfill all 725 orders is 120 strawberries.

Fruit basket is defined as a gift basket filled with a variety of fruits.

A fruit basket can be called as a punnet is a compact box or square basket used for gathering, transporting, and selling fruits and vegetables, typically for small berries.

As one basket has 6 strawberries.

So, for completing 725 order we need

= 725 / 6

= 120.8 = 120 strawberries

Thus, the  fruit basket recipe will the specialty store need to fulfill all 725 orders is 120 strawberries.

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Answer:

i’m sorry i don’t know

Explanation:

Answer:

The molecular weight of glucose (C6H12O6) is 6(12.01) + 12(1.01) + 6(16.00) = 180.18 g/mol.

So, the number of moles of glucose present in 240.0 g can be calculated as follows:

n = m/M = 240.0 g / 180.18 g/mol = 1.33 mol

And the number of molecules of glucose can be calculated as follows:

N = n x Avogadro's constant = 1.33 mol x 6.022 x 10^23 molecules/mol = 7.98 x 10^23 molecules

Therefore, the number of molecules of glucose present in 240.0 g is 7.98 x 10^23 molecules, rounded to the nearest whole number.

So, the coefficient is 7.98 and the exponent is 23.

Explanation:

One primary source of food contamination by cadmium in Japan is the soil. Cadmium is a naturally occurring element that can be found in soil, and it can be absorbed by plants as they grow.

Certain regions of Japan have high levels of cadmium in the soil due to geological and environmental factors, and crops grown in these areas can be contaminated with cadmium. Rice is a staple food in Japan, and it is particularly susceptible to cadmium contamination due to its growing conditions. Cadmium can accumulate in the grain of rice, especially if it is grown in soil that is contaminated with cadmium. As a result, rice is a major source of cadmium exposure for people in Japan.

In addition to rice, other foods that are commonly contaminated with cadmium in Japan include shellfish, seaweed, and some types of mushrooms. These foods can also absorb cadmium from the soil or water in which they are grown or harvested.

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Answer:

It might be e=FCA

Explanation:

Answer: I don’t know I just want the chemistry badge

Explanation:

The boiling point of the solution  in which 22. 5 grams of sucrose (C12H22O11) is dissolved in 550 mL of water  is approximately 100.06 °C.

The boiling point of a solution that contains 22.5 grams of sucrose (C12H22O11) dissolved in 550 mL of water can be determined by calculating the molality of the solution and using it to find the boiling point elevation constant.

Molality is the concentration of a solution in moles of solute per kilogram of solvent.

The formula for molality is given as:

molality = moles of solute / mass of solvent (in kg)

First, we need to determine the number of moles of sucrose in the solution.

To do that, we need to convert the mass of sucrose to moles by dividing by its molar mass.

Molar mass of C12H22O11 = 12(12.01) + 22(1.01) + 11(16.00) = 342.3 g/mol

Number of moles of sucrose = mass of sucrose / molar mass of sucrose

= 22.5 g / 342.3 g/mol

= 0.0657 mol

Next, we need to convert the volume of water to its mass.

The density of water is 1 g/mL, so 550 mL of water has a mass of 550 g = 0.550 kg.

molality = moles of solute / mass of solvent

= 0.0657 mol / 0.550 kg

= 0.1195 mol/kg

The boiling point elevation constant, Kb, for water is 0.512 °C/m, which means that the boiling point of water is increased by 0.512 °C for every 1 molal increase in molality.

Therefore, the boiling point elevation of the solution, ΔTb, is given by:

ΔTb = Kb × molality

= 0.512 °C/m × 0.1195 mol/kg

= 0.0612 °C

The boiling point of the solution can then be calculated as follows:

Tb = boiling point of pure solvent + ΔTb

= 100 °C + 0.0612 °C

= 100.0612 °C

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The missing particle in the nuclear reaction is a proton, and the balanced equation is: 10/5 B + 4/2 He → 13/7 N + 1/1 H. In the nuclear reaction shown, 10/5 B (Boron-10) and 4/2 He (Helium-4) combine to form a new nucleus 13/7 N (Nitrogen-13).

The mass number (the sum of protons and neutrons) of the reactants is 10 + 4 = 14, and the mass number of the products is 13. This means that a particle with a mass number of 1 (since 14 - 13 = 1) must be emitted during the reaction.

Now, we need to determine what type of particle has a mass number of 1. There are a few possibilities, including a proton (1/1 H), a neutron (1/0 n), or an alpha particle (4/2 He). However, an alpha particle was already involved in the initial reaction and cannot be emitted again.

The most likely particle to be emitted in this case is a proton (1/1 H), which has a mass number of 1 and is commonly emitted in nuclear reactions. Therefore, the missing particle in the reaction is a proton, and the balanced equation is: 10/5 B + 4/2 He → 13/7 N + 1/1 H

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Br and As:

Bromine is more reactive as reactivity increases on moving from left to right in p-block

In a titration of monoprotic acids and bases, there is a large change in pH  when the volume of acid is exactly equal to the volume of base.

Define pH

Water's pH level indicates how acidic or basic it is. The range is 0 to 14, with 7 acting as a neutral value. A pH of greater than 7 denotes a base, while one of less than 7 suggests acidity. The pH scale really measures the proportion of free hydrogen and hydroxyl ions in water.

Since mono is the Latin word for one, a monoprotic acid is one that can only transfer one proton. A monoprotic acid may have just one hydrogen ion or it may contain several. However, there will only be one reaction donation.

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