Answer: C
Explanation:
Which of the following molecules are polar: Cl2, CO2, BF3, NO, SO2, XeF4
Group of answer choices
O NO, SO2 only
O Cl2, CO2 only
O NO, XeF4 only
O BF3, XeF4 only
Only the molecules of NO, SO2 are polar. These chemicals are referred to as polar solvents since they have both positive as well as ends.
What does the chemical term "polar" mean?a structure where the density of electrons is unevenly distributed. Nonpolar refers to a structure where the density of electrons is more or more uniformly distributed. Numerous physical, molecular, and ecological properties of molecules are influenced by polarity, which can take many different forms.
Why are bonds polar?A polar molecule bond is one in which there is an electrostatic potential difference in between atoms of between 0.5 and 2.0. A polar covalent link is a type of covalent bond with which the atoms are attracted to electrons in uneven amounts, resulting in looked.
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Step 4: measure the mass of the book
The book will serve as a flat surface on which you later place additional weights. It has its own mask but you need to measure.
Zero the balance. Place the book on the balance.
Measure the mass of the nearest gram (1g)
498 g
In this experiment, you will measure all masses in kilograms. Convert the books mass to kilograms
0. 498 kg
The weight of the book in kilograms is 0.498Kg.
A body's bulk is an innate characteristic. It was widely believed to be related to the volume of matter in a physical body prior to the discovery of the atom and particle physics.
You can work on a level surface provided by the book.
will eventually add more weights. It is distinctive in its own way. The mass must be measured.
the account balance to 0 the scale with the book on it. Weigh the object down to the nearest gram (1 g). 498g In this experiment, all masses will be measured in kilograms. the books weigh 0.498 kg in kilograms.
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Is a mole equal to 1 molecules?
No, one molecule does not make up a mole. In chemistry, the terms "mole" and "molecule" are used interchangeably.
The word "mole" is used to describe a quantity that cannot be expressed in terms of grams or milligrams. A mole thus counts the quantity of atoms, ions, or molecules.
A molecule is a type of chemical that develops when multiple atoms are combined by chemical bonding. Electrical charge does not exist in molecules. A molecule's constituent atoms may come from the same element or from separate elements. Varying molecules have different ratios between these atoms. Molecules are a unit of measurement for the quantity of molecules in a system.
The primary distinction between a mole and a molecule is that a mole is a unit of measurement for amount whereas a molecule is an atomized chemical species.
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Compare a nuclear reaction, such as uranium’s alpha particle emission, with a nonnuclear reaction, such as the reaction of sodium with chlorine. What’s the fundamental difference between these two types of reactions?
Be sure to discuss electrons vs nuclear changes and fundamental differences.
A nuclear reaction like α decay takes place in the nucleus of an atom.An element becomes a different element. A chemical reaction like the formation of NaCl involves rearranging the electrons, which are outside the nucleus. The elements are not change. Salt is consists of sodium and chlorine.
What is nuclear reaction ?The splitting of the uranium-235 nucleus when it is blasted with neutrons is a crucial illustration of nuclear fission. This nuclear reaction can result in a number of different compounds.
Nuclear vs Chemical reactions
1. Alpha decay
U₉₂²³⁸ ⇒ He₂⁴ + Th₉₀²³⁴
A nuclear reaction like α decay takes place in the nucleus of an atom.
An element becomes a different element.
2. Chemical reaction
Na· + ·Cl ⟶ Na⁺ + Cl⁻
A chemical reaction like the formation of NaCl involves rearranging the electrons, which are outside the nucleus.
The elements are not change. Salt is consists of sodium and chlorine.
Thus, A nuclear reaction like α decay takes place in the nucleus of an atom.
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If I have 2.00 moles of a gas at a pressure of 0.600 atm and a volume of 12.0 liters, what is the temperature?
Answer:
there it is fella tried on ma own consciousness
Make a claim about how exercise affects the balance of salt and water in your body
NO LINKS
Be as explicit as you can in describing how the covalent bond between an atom of Chlorine and an atom of Iodine forms. (What happens to the electrons, which electrons are involved, and what allows this to happen MUST all be part of your answer to receive full credit.)
When two atoms of chlorine and iodine join together to form a covalent bond, their outermost electrons interact to form a chemical bond.
What is a Covalent bond?
A covalent bond is a type of chemical bond that involves the sharing of a pair of electrons between two atoms. Covalent bonds are formed when two atoms come together to share their electrons in order to reach a more stable electron configuration. As a result, the two atoms become bonded together by the attraction of their shared electrons.
The chlorine atom has seven valence electrons, while the iodine atom has seven as well. Both atoms will want to complete their octets, so the two atoms share their outermost electrons with each other. During the formation of the covalent bond, the chlorine atom will donate one of its electrons to the iodine atom, while the iodine atom will donate one of its electrons to the chlorine atom. This sharing of electrons allows the two atoms to form a single bond and fill their octets, forming a covalent bond.
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What is the relationship between CO2 levels and sea levels?
The relationship between the CO₂ and the sea levels is the carbon dioxide is higher about 10 % at deep ocean than the surface.
This warms world due to the greenhouse gases that included the carbon dioxide , the water heat up and it expands due to which the sea level rises. if we remove the extra heat from the ocean that caused by the short lived gases , it lowers the sea levels and this process is very slow.
The carbon dioxide that dissolves in the ocean will cause the sea water to be acidify. this will harmful for the shellfish and the corals.
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Can someone please help me with this question??
Everyone!
Give a Question/Problem for Hot and Cold Compress Pillow
Thank you!!
Answer:
are u good at geometry math? their are some questions I didn't understand it PLEASE
Write a introduction base on the topic reproduction, male an female reproduction system
The ma le repr0 ductive system includes made up of internal organs such as the prostate gland, vas deferens, as well as ure thra as well as external geni talia like the pe nis, tes tes, as well as scrot um.
The health of something like the male reproductive system and the hormo nes secreted by the brain determine a man's fertility as well as sexual characteristics.
The human reproductive system would be the organ system primarily charged of creating and fertilizing gametes (eggs but rather sperm) as well as carrying a fetus. The gonads of both se xes create gametes.
The ov aries, fallopian tubes, uterus, cervix, as well as vagina are all parts of the female repro ductive system. It comprises the pe nis, prostate, as well as tes tes in men.
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Consider the unbalanced equation for the oxidation of butene. C4H8 + 6O2 Right arrow. CO2 + H2O For each molecule of C4H8 that reacts, how many molecules of carbon dioxide and water are produced?
Answer:
4 molecules of carbon dioxide (CO₂) and 4 molecules of water (H₂O)
Explanation:
The unbalanced chemical equation is:
C₄H₈ + 6 O₂ → CO₂ + H₂O
To balance the equation, we have to write a coefficient of 4 for CO₂ and a coefficient of 4 for H₂O, as follows:
C₄H₈ + 6 O₂ → 4 CO₂ + 4 H₂O
Now, we can see that 4 molecules of carbon dioxide (CO₂) and 4 molecules of water (H₂O) are produced for each molecule of C₄H₈.
Which of the following is the strongest type of interaction that occurs between the atoms within the circled areas of the two molecules represented above? A) Polar covalent bond B) Nonpolar covalent bond C) Hydrogen bond D) London dispersion forces
The strongest type of interaction that occurs between the atoms is hydrogen bond.(option c)
A hydrogen atom that is bound to a highly electronegative atom and another highly electronegative atom that is close by interact with one another to form hydrogen bonds, which are an unique kind of attractive intermolecular interactions. This process is known as hydrogen bonding.
As a result of hydrogen bonding, a hydrogen atom simultaneously forms a covalent bond with one electronegative atom and a hydrogen bond with the other. These are the prerequisites for hydrogen bonding:
1.A strongly electronegative atom connected to the hydrogen atom must be present in the molecule. The degree of polarization of the molecule increases with increasing electronegativity.
2.The electronegative atom should have a tiny size. The strength of the electrostatic attraction increases with decreasing size.
So, the hydrogen bonding is the strongest bond.
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What behavior of light PROVES that it is a wave? Hint: will this ONLY happen because light is a wave, or could it also be true of fast moving particles? *
Reflection of light
Absorption of light
Light changes speed in glass and water.
Interference between two or more light waves
Answer:
Light changes speed in a glass of water.
Explanation:
If a strong force acts on the metal towers of the suspension bridge, the towers will not break into pieces, like glass would, but will bend instead. Which property of metals explains this phenomenon?
The periodic chart has many different types of elements. Some elements are metals, some are nonmetals, and yet others are metalloids. Therefore, ductility is the property of metals that explains the given phenomenon.
What is metal?Metals are hard, conduct electricity, are ductile, lustrous, and malleable materials. Since metals have free electrons that's why they can conduct electricity. Since atoms in metals are very closely packed in a definite crystal solid. It is not brittle that is it can not be broken down easily.
If a strong force acts on the metal towers of the suspension bridge, the towers will not break into pieces, like glass would, but will bend instead. Ductility is the property of metals that explains the given phenomenon.
Therefore, ductility is the property of metals that explains the given phenomenon.
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select all that apply. please help! i will mark you brainliest
Kinetic energy increases as mass increases
The shape of the mass vs energy graph shows a linear relationship
When we double the mass, we double the energy.
Interpreting a graphThe graph shown in the image is a plot of the kinetic energy of objects on the y-axis and the mass of the objects on the x-axis.
The graph is a straight line. This shows that there is a linear relationship between the two parameters - the kinetic energy and mass of objects. Thus, the kinetic energy increases as mass of objects increases, and decreases as mass of objects increases.
From the graph, when the mass of objects are doubled, there is also a double in the amount of the kinetic energy of objects.
In summary, the graph shows that:
Kinetic energy increases as mass increasesThe shape of the mass vs energy graph shows a linear relationshipWhen we double the mass, we double the energy.More on interpreting graphs can be found here: https://brainly.com/question/28418462
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3. Why are fossils so rare?
the conditions needed to form the
fossil are rare
most organisms die when eaten by
others
all organisms form fossils when
they die, we just have not found them
yet
Answer:
fossils are rare bc most dead organisms get decayed by environmental change and decomposers,most fossils are parts of bones and mostly found indry areas like deserts
Name one situation in which gravi- tational potential energy might be useful, and name one situation in which it might be dangerous.
Which molecular geometry, of an ABn molecule, results in a polar molecule?
O tetrahedral
O trigonal pyramidal
O square planar
O linear
Answer:
trigonal pyramidal
Explanation:
In the case of water.
Calculate the frequency of a photon with an energy of 4. 26 x10-19 J and a wavelength of 4. 67 x 10-7m.
[E= 6. 626 x 1034 x frequency C(3. 0 x 108 m/s) = wavelength x frequency]
The frequency of a photon with an energy of 4. 26 x10-19 J and a wavelength of 4. 67 x 10-7m. [E= 6. 626 x 1034 x frequency C(3. 0 x 108 m/s) = wavelength x frequency] is 28.22 × 10¹⁵hz.
So formula is :-
Energy of photon, E=hc/λ or λ=hc/E
E = hν = hc/λ,
Where, h=6.626×10−³⁴Js,c=3×10⁸
By putting all these values, we get:-
4.26× 10-¹⁹ = 6.626×10-³⁴ × ν
v = 4.26 × 6.626 × 10¹⁵
= 28.22 × 10¹⁵ hz
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What volume will 25.0g ammonia occupy at stp
Answer:
The volume of 25 g O2 at STP is ~18 L.
Explanation:
can you mark me brainliest pls :)
True or false chemical potential energy is energy stored in a substance because of its composition 
Answer: yes
Explanation:
Chemical potential energy is energy stored in a substance because of its composition.
Answer:
True
Explanation:
Chemical Potential Energy Energy is the capacity for doing work or supplying heat. When you fill your car with gasoline, you are providing it with potential energy. Chemical potential energy is the energy stored in the chemical bonds of a substance.
does vinegar conduct? yes or no
A solid-solid solution is called a(n)
Answer: Alloy
Explanation:
are bath bombs covalent or ionic bonds?
Can being obese kill?
6. Animals have many adaptations for survival. Describe each adaptation below, and explain how it could help an organism better survive in its environment.
a) camouflage
b) mimicry
c) venom
Please help, I have tried everything that I can think of
Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, theoretical yield of Al[tex]_2[/tex]O[tex]_3[/tex] is 136g.
What is mole?The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number. The stoichiometry represents the number of moles.
4AI + 3O[tex]_2[/tex]→ 2Al[tex]_2[/tex]O[tex]_3[/tex]
moles of Al =54/26=2.07
moles of O[tex]_2[/tex]=64/32=2
Since oxygen is limiting reagent, so product will be according to oxygen
Theoretical yield of Al[tex]_2[/tex]O[tex]_3[/tex]=136g
Therefore, theoretical yield of Al[tex]_2[/tex]O[tex]_3[/tex] is 136g.
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Enzyme ______ bind to an enzyme to turn it off, thus preventing it from catalyzing a reaction. Multiple choice question
Enzyme Inhibitors bind to an enzyme to turn it off, thus preventing it from catalyzing a reaction.
An enzyme is a biological molecule that catalyzes chemical reactions in the cell. Enzymes work by lowering the activation energy required for a reaction to occur, making it more likely that the reaction will proceed. However, enzymes can also be inhibited, which means that their activity is reduced or stopped completely. This can happen for a variety of reasons, such as the presence of a specific molecule called an inhibitor.
Some inhibitors bind to the active site of the enzyme, preventing the substrate from binding and thus preventing the reaction from occurring. Other inhibitors bind to other parts of the enzyme, causing a conformational change that prevents the enzyme from working. Still, other inhibitors bind to enzymes and alter their activity by non-covalent interactions.
There are different types of inhibitors like competitive inhibitors bind to the active site of an enzyme and prevent substrate binding. Non-competitive inhibitors bind to a different site on the enzyme, causing a conformational change that makes the enzyme less active. Feedback inhibitors bind to the end product of a metabolic pathway, inhibiting the enzyme that catalyzes the first step of the pathway.
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What is the name of most reactive non-metal element on the periodic table?
The name of most reactive non-metal element on the periodic table is fluorine
Fluorine is the nonmetal in the periodic table that is the most reactive.
On the Pauling scale, it has the highest electronegativity of any element (3.98). Fluorine is a highly reactive, diatomic gas that may mix with practically every other element to form compounds that have entirely different properties from either of the original components. The boiling point of fluorine is -188 °C (-310 °F).
Hydrofluoric acid and hydrogen fluoride gas are produced during the reaction with water: HF + H₂O ⇒H⁺ + HF + OH.
Chemical elements are shown on a periodic table in order of their atomic number. The classification of elements and their relationships to one another can be understood using the periodic table.
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