Regarding water's ability to move up a glass tube, which of the following is true?

Answers

Answer 1

Answer: This ability of water is called a capillary action. This ability is exhibited by liquids where they flow in tubes without any assistance. This happens due to adhesion, cohesion and surface tension.

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at do oxygen (O) and bromine (Br) have in common? They both tend to gain electrons to gain stability. They both have seven valence electrons. They are both halogens. They are both unreactive.
Describe the structure of the water molecule and indicate how this structure is responsible for many of the unique properties of this vital compound.
Which notion is incorrect?A. Dispersion forces are present in all molecular substances. B. The greater the dipole moment, the stronger the dipole-dipole forces. C. The polarizability of elongated molecules is greater than that of compact, more spherical molecules. D. London dispersion forces weaken in the order Xe < Kr < Ar E. Hydrogen bonding leads to the strongest intermolecular forces.

Which pair of compounds can be classified as inorganic? A) nucleic acids and minerals B) proteins and water C) water and salts D) nucleic acids and proteins

Answers

Answer:

The correct answer is option c) water and salts

Explanation:

Organic compounds contain carbon and hydrogen bonds. Both nucleic acids and proteins contain these. Water (H2O) and salts (Ex:NaCl) do not.

Final answer:

The pair of compounds that can be classified as inorganic from the given options are water and salts. These lack a carbon-hydrogen bond, unlike nucleic acids and proteins, which are organic.

Explanation:

The pair of compounds that can be classified as inorganic are water and salts. Inorganic compounds are defined as compounds that do not contain a carbon-hydrogen bond, which makes them different from organic compounds. Both water (H2O) and salts, like table salt (NaCl), do not contain any carbon-hydrogen bonds, so they are considered inorganic compounds. On the other hand, nucleic acids and proteins are both complex structures that include carbon-hydrogen bonds, making them organic compounds.

Learn more about Inorganic Compounds here:

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Is sand biotic or abiotic

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Non living things are abiotic so sand is abiotic

What does the name 2–butene tell you about this hydrocarbon's molecular structure?A.There are two carbon atoms and all single carbon bonds.

B. There are two carbon atoms and a double carbon bond.

C. There are three carbon atoms and a double carbon bond that starts on the second carbon atom.

D. There are four carbon atoms and a double carbon bond that starts on the second carbon atom.

Answers

Option D. There are four carbon atoms and a double bond that starts on the second carbon atom.

Methane: one carbon
Ethene: two carbons
Propene: three carbons
Butene: four carbons.
Pentene: five carbons

The suffix - ene is used for double bonds.

The number 2- indicates the place of the carbon on which the double bond is located.

Gradpoint answer: a four-carbon hydrocarbon with a double bond between the second and third carbon atoms

What is the electron configuration of an element with atomic number 20?

Answers

Answer: $1s^22s^22p^63s^23p^64s^2$

Explanation: The element with atomic number 20 consists 20 electrons and as atomic number is specific to an element, atomic number is of element calcium.

The nearest noble gas to calcium is argon with 18 electrons with configuartion $1s^22s^22p^63s^23p^6$ according to afbau's rule, in which orbitals are arranged in order of increasing energies.

Thus electronic configuartion of calcium in terms of noble gas configuration is:

$Ca:20:[Ar]4s^2$

1s2,2s2.2p6,3s2,3p6,3d4,4s2

Which compound has the highest percent composition by mass of strontium?

Answers

Assuming all the compounds of interest are given. We proceed on the theoretical way of answering this question. Assume 1 gram of each compound. Multiply it by the reciprocal of the molar mass of the compound. Then multiply it by the molar ratio of the Strontium to the compound. Then, multiply it by the molar mass of strontium. Finally divide this answer by 1 gram and multiply by 100.

The availability of phosphorus is different that that of carbon and nitrogen because it is found mostly in the ____. atmosphere hydrosphere lithosphere biosphere

Answers

Answer : Option C) Lithosphere.

Explanation : Lithosphere is a layer which includes the crust and the uppermost mantle, which constitutes the hard and rigid outer layer of the Earth. The lithosphere is subdivided into tectonic plates. In these tectonic plates large amount of phosphorus is found. Whereas carbon and nitrogen in found in atmosphere not in the layers of the earth.

The availability of phosphorus is different that that of carbon and nitrogen because it is found mostly in the Lithosphere, whereas, carbon and nitrogen are found in atmosphere.

The availability of phosphorus is different than that of carbon and nitrogen because it is found mostly in the lithosphere. Lithosphere is the rigid, outermost crust on the Earth.

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