What best describes these three molecules? they are not isomers. they are structural isomers. they are geometric isomers. they are both structural and geometric isomers.

The density of the liquid is 0.794 g/mL.

To calculate the density of the liquid, we can use the formula:

Density = Mass / Volume

Given information:

Mass of the graduated cylinder = 105.56 g

Volume of the liquid = 45.4 mL

Total mass of cylinder and liquid = 136.15 g

To find the mass of the liquid, we subtract the mass of the cylinder from the total mass:

Mass of the liquid = Total mass - Mass of the cylinder

Mass of the liquid = 136.15 g - 105.56 g

Mass of the liquid = 30.59 g

Now we can calculate the density:

Density = Mass of the liquid / Volume of the liquid

Density = 30.59 g / 45.4 mL

Converting mL to cm³ (since 1 mL = 1 cm³):

Density = 30.59 g / 45.4 cm³

Density = 0.674 g/cm³

Rounding to three decimal places, the density of the liquid is approximately 0.794 g/mL.

Learn more about density: https://brainly.com/question/1354972

#SPJ11

The five scientists who contributed to the discovery of the cell are Robert Hooke, Antonie van Leeuwenhoek, Matthias Schleiden, Theodor Schwann, and Rudolf Virchow.

The discovery of the cell as the fundamental unit of life involved the collective efforts of several scientists. Robert Hooke, an English physicist, was the first to observe and name cells while examining cork under a microscope in 1665.

Around the same time, Antonie van Leeuwenhoek, a Dutch scientist, improved microscopes and made detailed observations of various microorganisms, further advancing our understanding of cells.

In the mid-19th century, Matthias Schleiden, a German botanist, proposed that all plants are composed of cells, and Theodor Schwann, a German zoologist, extended this concept to animals.

Their combined work led to the formulation of the Cell Theory, which states that cells are the basic building blocks of all living organisms.

Rudolf Virchow, a German physician, later contributed to the development of the Cell Theory by emphasizing the idea that cells arise only from pre-existing cells, rejecting the notion of spontaneous generation. Virchow's work highlighted the significance of cell division and its role in growth, development, and disease.

Through their cumulative efforts, Hooke, van Leeuwenhoek, Schleiden, Schwann, and Virchow made significant contributions to our understanding of cells, paving the way for modern cell biology and numerous advancements in the field of life sciences.

for such more questions on  discovery

https://brainly.com/question/8041368

#SPJ8

Answer:

Answer B: Heterogeneous

Explanation:

im pretty sure this is it if its not im really sorry

When an item is removed from Earth, its mass remains constant yet its weight drops due to the weakened gravitational force.

Gravity produces an attraction between masses. As an object's mass rises, the gravitational pull grows. The gravitational force rapidly decreases as the distance separating masses increases.

In other words, the gravitational force exerted on an object determines its weight. Because of this, an object's real weight may differ depending on its location. Because the gravitational attraction of humanity is six times larger than the moon, a body that weighs 54 kg on Earth would only weigh slightly more than 9 kg on the moon.

To know more about gravitational visit:
https://brainly.com/question/16613634

#SPJ1

The sample of helium gas must be cooled to approximately -220°C to reduce its volume from 5.9 L to 0.2 L at constant pressure.

According to the ideal gas law, the relationship between the volume (V), temperature (T), and pressure (P) of a gas can be expressed as PV = nRT, where n is the number of moles of the gas and R is the ideal gas constant. In this case, the pressure is constant, so we can simplify the equation to V/T = constant.

To find the final temperature required to reduce the volume from 5.9 L to 0.2 L, we can set up the following ratio:

(V1 / T1) = (V2 / T2)

Where V1 is the initial volume (5.9 L), T1 is the initial temperature (119°C + 273.15 = 392.15 K), V2 is the final volume (0.2 L), and T2 is the final temperature that we need to find.

Rearranging the equation, we have:

T2 = (V2 / V1) * T1

= (0.2 L / 5.9 L) * 392.15 K

≈ 13.28 K

Converting 13.28 K back to Celsius, we get:

T2 ≈ -259.87°C

Therefore, the sample of helium gas must be cooled to approximately -220°C (or -259.87°C) to reduce its volume from 5.9 L to 0.2 L at constant pressure.

The question should be:

To what temperature must a sample of helium gas be cooled from 119°C to reduce its volume from 5.9 L to 0.2 L at constant pressure?

To learn more about ideal gas law, Visit:

https://brainly.com/question/27870704

#SPJ11

Answer:

0.890J/gC

Explanation:

H=mcDeltaT --> c=H/mDeltaT

c= 222.5J/(25.0)(10.0)

222.5/250

0.890J/gC

Answer:

ertyuioekgdctifrofy?

Explanation:

Both the reactants' and the products' concentrations must be constant.

Chemical equilibrium is the condition in which both reactants and products are present in concentrations that have no further tendency to change with time, resulting in no apparent change in the system's properties.

A reversible chemical reaction is one in which the products react to generate the original reactants as soon as they are formed.

Learn more about equilibrium here:

https://brainly.com/question/517289

#SPJ1

Answer:

2 oxygen atoms make oxygen gas

A molecule of oxygen gas is composed of two oxygen atoms chemically bonded together. The symbol for oxygen is "O," and the atomic number is 8, indicating that each oxygen atom has 8 protons in its nucleus.

A covalent bond is a type of chemical bond that occurs between two atoms when they share one or more pairs of electrons. It is a strong bond that holds atoms together to form molecules.

In a covalent bond, atoms share electrons in order to achieve a more stable electron configuration, typically by filling their outermost energy levels (valence shells). By sharing electrons, both atoms involved in the bond can achieve a more stable configuration, similar to the noble gas configuration.

In an oxygen gas molecule, the two oxygen atoms are held together by a covalent bond. Covalent bonds involve the sharing of electron pairs between atoms. In the case of oxygen gas, each oxygen atom shares two electrons with the other oxygen atom, resulting in a stable molecule.

Therefore, a molecule of oxygen gas is made up of two oxygen atoms (O) bonded together by a covalent bond.

For more details regarding oxygen gas, visit:

https://brainly.com/question/1064242

#SPJ6

Answer:

Water is a remarkable substance, and its unique properties are largely due to the presence of polar covalent bonds and hydrogen bonds in its structure. These characteristics play a crucial role in the physical and chemical properties of water, making it essential for life as we know it.

Explanation:

The polar covalent bonds in water arise from the unequal sharing of electrons between oxygen and hydrogen atoms. This results in the oxygen atom having a partial negative charge (δ-) and the hydrogen atoms having partial positive charges (δ+). These charges create polarity within the water molecule, leading to the formation of hydrogen bonds.

Hydrogen bonds occur when the partially positive hydrogen atom of one water molecule is attracted to the partially negative oxygen atom of another water molecule. These hydrogen bonds are relatively weak individually, but when present in large numbers, they contribute to the cohesion, surface tension, and high boiling point of water.

The importance of these bonds is manifold. The cohesion between water molecules due to hydrogen bonding enables water to form droplets, have a high surface tension, and flow freely, facilitating transport within organisms and in the environment. Additionally, hydrogen bonding leads to the high specific heat capacity and heat of vaporization of water, making it an effective regulator of temperature in living organisms and ensuring stable environmental conditions.

Furthermore, hydrogen bonds play a crucial role in the unique properties of water as a solvent. The polar nature of water allows it to dissolve a wide range of substances, including ionic compounds and polar molecules, facilitating various biological processes such as nutrient transport and chemical reactions in cells.

Answer: True

Explanation: The amount of energy required to remove an electron from an isolated atom or molecule is the ionization potential. There is an ionization energy for each successive electron removed.

Hope this helps you!

Answer:

The most common isotope is Bromine-79.

Explanation:

A thermometer bulb is built of thin glass so that it can effectively conduct heat from an object that comes into contact with the mercury in the bulb.

With the chemical symbol Hg and the atomic number 80, mercury is a class of elements. It was once called hydrargyrum, which is a combination of the Greek terms Hydor and Argyros, and it is also known as quicksilver. Mercury is toxic in its entirety. While some mercury compounds are more hazardous than others, all of them are harmful. Mercury exposures can harm the immune system, kidneys, liver, nervous system, and more depending on the type and quantity. The lungs, kidneys, and nervous system can all suffer damage from inhaling mercury fumes.

Mercury is utilized in pressure measuring devices even though a wide variety of liquids may be used due to its high density and reduced space requirement. The fact that PTFE is a good conductor of electricity makes it a valuable addition to electrical switches.

To know more about mercury ,visit:

https://brainly.com/question/2279846

#SPJ9

The decomposition reaction of silver chloride (AgCl) when exposed to light can be represented by the following balanced equation:

2AgCl (s) → 2Ag (s) + Cl2 (g)

In this equation, solid silver chloride decomposes into silver metal (Ag) and gaseous chlorine (Cl2) when exposed to light.

This reaction is an example of a photochemical reaction, where light energy triggers a chemical change. In this case, the absorption of light energy causes the silver chloride crystal lattice to break down, resulting in the formation of silver atoms and chlorine molecules.

It's worth noting that silver chloride is a photosensitive compound commonly used in traditional black and white photography. When light strikes the silver chloride-coated film, it creates a pattern of exposed and unexposed areas. The exposed areas undergo the decomposition reaction, resulting in the formation of metallic silver, which forms the photographic image.

For more such questions on silver chloride

https://brainly.com/question/19054138

#SPJ8

Answer:

43.76 g = 0.04376 Kg

Explanation:

The equation of the reaction is given as;

H2 + Cl2 --> 2HCl

From the equation;

1 mol of Cl2 produces 2 mol of HCl

Converting to mass;

Mass = Number of mol * Molar mass

Cl2;

Mass = 1 mol * 70.906 g/mol = 70.906 g

HCl;

Mass = 2 mol * 36.458 g/mol = 72.916 g

This means;

70.906 g of Cl2 produces 72.916 g of HCl

x g of Cl2 would produce 45g of HCl

70.906 = 72.916

x = 45

x = 45 * 70.906 / 72.916

x = 43.76g

3.04 gm of ammonium thiocyanate is used to react completely with a molecular mass of 6.7 gm of barium hydroxide octahydrate.

Ba(OH)₂.8H₂O + 2NH₄ScN⇒ Ba(ScN)₂ + 10H₂O + 2NH₃

weight = Molecular mass × Number of moles

moles of barium hydroxide octahydrate = 6.5/315 = 0.02 M

moles of ammonium thiocyanate = 2 × 0.02 = 0.04 M

weight of ammonium thiocyanate required = 0.04 × 76.1 = 3.044 gm.

Learn more about Molecular mass :

brainly.com/question/18446366

#SPJ4

To find the temperature of the gas in Kelvin, we can use the ideal gas law equation, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in Kelvin.

In this case, we know that the volume of the helium gas is 10.5 L. Since we have 1 mole of helium gas, we can substitute these values into the equation.
PV = nRT
(unknown pressure) * 10.5 L = 1 mole * R * T
To solve for T, we need to know the pressure. If the pressure is provided, we can calculate the temperature. However, in the given question, the pressure is not mentioned. Therefore, we cannot determine the temperature without knowing the pressure.
Please provide the pressure value to further calculate the temperature in Kelvin.

To know more about temperature visit:

https://brainly.com/question/7510619

#SPJ11

 Bone is composed   calcified matrix, which gives it hardness. The loss of this bone hardness is called Osteopenia.

Bone is an organic matrix that is highy reinforced by inorgaanic minerals  such as calcium. Bone is known to be intricated laced in a calcified matrix, which gives it hardness.

The loss of this bone density and consequent loss of the rigidity of the bone is called Osteopenia.

Learn more about bone strength: https://brainly.com/question/5482443

Answer:

Niels Bohr

Explanation:

COBr2 is polar in nature and prefers to dissolve in polar solvents like water, ethanol, and methanol, among others, cobr2 is soluble in polar solvents.

To learn more about polar solvents refer to:

https://brainly.com/question/3184550

#SPJ4

The main answer to your question is (E) a molecular solid.

A molecular solid is composed of individual molecules held together by intermolecular forces, such as London dispersion forces, dipole-dipole forces, and hydrogen bonding.

These intermolecular forces are not strong enough to allow the substance to conduct electricity in solution or when melted.

Additionally, the low melting point of the substance indicates that the intermolecular forces holding the molecules together are relatively weak.

Summary: The substance is likely a molecular solid, which does not conduct electricity in solution or when melted due to weak intermolecular forces between individual molecules.

Learn more about molecular solid click here:

https://brainly.com/question/12866243

#SPJ11

To solve this question we will assume that the moles of gas do not change and that the gas behaves like an ideal gas.

For an ideal gas we have that its behavior will be according to the following equation:

Where,

P is the pressure of the gas, in atm

V is the volume of the gas, in liters

n are the moles of the gas

T is the temperature of the gas, in Kelvin

R is a constant, 0.08206 atm.L/mol.K

We have for this gas two states, an initial state (1) and a final state (2), so for each state we can apply the ideal gas law, we will have:

Initial state:

Final state:

Since nR are constants, we can equate both equations:

For each state the conditions of pressure, volume and temperature will be:

P1=1.00atm

V1=195mL = 0.195L

T1=20°c = 293.15K

P2= 600mmHg=0.79atm

T2=60°C=333.15K

V2=Unknown

We clear V2 and replace the known data:

Answer: The final volume of the gas will be 280mL

Answer:

12 angle

Explanation:

Answer:

How do atoms give off light?

Atoms emit light when they are heated or excited at high energy levels. The color of light that is emitted by an atom depends on how much energy the electron releases as it moves down different energy levels. ... It shows the electron moving down energy levels.

Explanation:

Answer:

2.38 g of oxygen (O2).

Explanation:

What is given?

Mass of potassium chlorate (KClO3) = 6.06 g.

Molar mass of KClO3 = 122.4 g/mol.

Molar mass of oxygen (O2) = 32 g/mol.

Step-by-step solution:

First, let's state the balanced chemical equation. Remember that the decomposition of a compound produces two or more products:

Now, let's convert 6.06 g of KClO3 to moles using its molar mass:

You can see in the chemical equation that 2 moles of KClO3 produce 3 moles of O2. By doing a rule of three with this data, we obtain that:

The final step is to convert from 0.0743 moles of O2 to grams using its molar mass, like this:

The answer is that we will produce 2.38 g of oxygen (O2) from the decomposition of 6.06 g of potassium chlorate (KClO3).

Answer:

These are called cis-but-2-ene (where the groups are on the same side) or trans-but-2-ene (where they are on opposite sides). Cis-but-2-ene is also known as (Z)-but-2-ene; trans-but-2-ene is also known as (E)-but-2-ene. For an explanation of the two ways of naming these two compounds, follow the link in the box below.

Explanation:

A dilatation is a type of transformation that enlarges or reduces a figure (known as the preimage) to create a new figure (called the image)

Triglyceride dilation is the thermal expansion of crystalline triglycerides. When length scales (or energy scales) are multiplied by a common factor, an object's or law's scale invariance property does not change. A transformation called a dilation (similarity transformation) alters the size of a figure. A center point and a scaling factor, k, are necessary. Which kind of dilation it is—an enlargement or a reduction—depends on the value of k. An enlargement results from a dilatation if |k|>1. The reduction is the dilation if |k| 1.

To determine a dilated figure's scale factor, use the following simple formula: Scale factor is the product of the old shape's dimension and the new shape's dimension.

To learn more about dilatation refer to:

https://brainly.com/question/28995075

#SPJ4