Answer:
Explanation:
B.Rice grains, which have accidentally been mixed with flour
In animal skin tissue, cell division is responsible for
A. Growth and repair
B. Sexual reproduction
C. Obtaining energy
D. production of sex cells
Answer: Its A Your Welcome
In animal skin tissue, cell division is responsible for growth and repair. The correct answer is option A.
Cell division is the process by which a single cell divides into two or more daughter cells. This process is essential for growth, repair, and reproduction in living organisms.
Cell division in animal skin tissue is responsible for growth and repair. When the skin is damaged, cells divide to repair the damaged area.
There are two main types of cell division:
Mitosis is the process of cell division that produces two identical daughter cells.Meiosis is the process of cell division that produces four genetically diverse daughter cells, used in the production of gametes (sex cells).Additionally, cell division is responsible for the growth of skin tissue during development and throughout the life of the organism.
Therefore, the correct answer is option A. Growth and repair.
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Cooling the concentrated ammonia and hydrochloric acid before carrying out the experiment increased the time taken for the white cloud to form
the electrolyte does not need heating to keep it in its molten state; why?
Answer:
Because an electrolyte already has mobile molecules.
I need help finding out what this is please help
Answer:
search the Lewis dot structure you will know the answer.
The only two elements in alkenes and alkynes are A. Carbon and Nitrogen B. Carbon and Hydrogen C. Oxygen and Nitrogen D. Oxygen and Hydrogen
Answer:
B. Carbon and Hydrogen
Explanation:
An alkyne can be regarded as unsaturated hydrocarbon which have at least one carbon—carbon triple bond. They are acyclic aliphatic hydrocarbons, they can be (branched or unbranched) , They have general chemical formula of [ CₙH₂ₙ−2]. One of the compound belonging to this family is Propyne( C3H4) Hence, they contain Hydrogen and Carbon.
Alkenes can be regarded as class of hydrocarbons which posses only carbon and hydrogen, they are unsaturated compounds having least one carbon-to-carbon double bond.
alkenes can also be regarded as "olefins". one of the members of this family is Ethene (C2H4). general formula of alkenes can be written as [C nH 2n],
n=number of carbon atoms present in the molecule
which synthetic fiber feels like wool and used as a substitute for wool
Answer:
Acrylic
Acrylic is the synthetic fibre feels like wool and used as a substitute for wool.
PLEASE HELP!!!
The options are:
A. Nitrogen.
B. Neon.
C. Hydrogen chloride.
D. Sulfur dioxide.
Answer:
Hydrogen Chloride
Explanation:
They will be able to dissolve quicker than the rest
Answer:
C. Hydrogen chloride.
Explanation:
Hydrogen chloride gas will diffuse most quickly.
Hope it is helpful....Which were Lenin's actions before and during the Russian Revolution? Check all that apply.
He led the fight against Germany
He supported the ideology of Marxism
He opposed the provisional government.
He opposed the tsar and was exiled.
He supported the Duma.
He led the Bolsheviks.
He supported inequality.
The correct answe is:
• He supported the ideology of Marxism.
• He opposed the provisional government.
• He opposed the trar and was. exiled.
• He led the Bolvsheviks.
Answer:
He supported the ideology of Marxism.
He opposed the tsar and was exiled.
He led the Bolsheviks.
Explanation:
Lenin was Russian Revolution political theorist. He served as first founding head of government of Soviet Russia. He supported the ideology of Marxism and opposed Tsar.
what do you mean by chemical reaction
Answer:
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products.
A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
Chemical reactions are an integral part of technology, of culture, and indeed of life itself. Burning fuels, smelting iron, making glass and pottery, brewing beer, and making wine and cheese are among many examples of activities incorporating chemical reactions that have been known and used for thousands of years. Chemical reactions abound in the geology of Earth, in the atmosphere and oceans, and in a vast array of complicated processes that occur in all living systems.
Explanation:
hope it help
plss brainlys me
Answer:
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products
Explanation:
Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
Which statements about a phosphorus atom, P, are correct?
1. The nucleon number is 16.
2. The number of outer electrons is 5.
3. The proton number is 15.
Answer:
3. The proton number is 15.
Explanation:
Phosphorus, P is the element with the atomic number = 15. The atomic number = Number of protons. That means:
3. The proton number is 15.
Now, the number of protons = Number of electrons = 15.
And, nucleon number = Number of protons + number of neutrons. The must abundant phosphorus atom contains 16 neutrons and nucleon number is: 15+16 = 31.
Thus, we can know which statement is true.
What is a prism?
A. Something that measures the energy of light wavelengths
B. Something that raises electrons to higher energy levels
c. Something that combines colors into a single source
D. Something that splits up light into different colors
Answer:
D. Something that splits up light into different colors
Explanation:
A prism separates light into various different colors. Thus, D is correct. :)
Which of the following is not a reason why actual yield is less than theoretical yield?
A. presence of impure reactants
B. conservation of mass
C. competing side reactions
D. loss of product during purification
The option that isn't a reason why the actual yield is less than theoretical yield is B. conservation of mass.
It should be noted that the formula for the percent yield is given as:
= Actual yield / Theoretical Yield × 100
The actual yield is experimentally determined, and it's the quantity of a product that is gotten from a chemical reaction.The theoretical yield is the amount of product that can be obtained from a reaction when the reactants are changed to products.Actual yield can be less than theoretical yield due to the presence of impure reactants ,competing side reactions, and loss of product during purification.
In conclusion, the correct option is B.
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what mass of small stones would be needed to make the strongest concrete? give a reason for your awnser.
Answer:
For a good consert mix aggregate needed to the clean hard strong partical free of absorb chemicals or coating clay and other fine materials
What kind of pattern can you see about elements in the same period with respect to electron
structures?
Answer: A pattern of same atomic orbitals can be seen about elements in the same period with respect to electron structures.
Explanation:
The horizontal rows in a period table are called periods.
Elements present in the same period will have same atomic orbitals.
For example, electronic distribution of Na is 2, 8, 1 and it is a third period element.
Similarly, electronic distribution of Cl is 2, 8, 7 and it is also a third period element.
Hence, both Na and Cl will have K, L, M shells, that is, they have three atomic orbitals.
Thus, we can conclude that a pattern of same atomic orbitals can be seen about elements in the same period with respect to electron structures.
Use the periodic table to determine the electron configuration for aluminum (AI) and arsenic (As) in
noble-gas notation
AL
o [Ar]3s23p!
lo (He]2s22p63s23p!
0 [Ne]3s23p!
0 [Ne]3s23p2
DONE
Answer:
Aluminum; [Ne]3s²3p¹
Arsenic; [Ar]3d¹⁰4s²4p³
Explanation:
Aluminum
From the periodic table, we have that aluminum, Al, is located in period 3, and group 3A of the periodic table
Therefore, the noble gas that comes before aluminum in the periodic table is neon Ne
The electronic configuration of aluminum is 1s²2s²2p⁶3s²3p¹
The electronic configuration of neon is 1s²2s²2p⁶
Therefore, the electronic configuration of aluminum in noble gas notation (Ne) is therefore;
[Ne]3s²3p¹
Arsenic
Arsenic is located after argon, Ar on the periodic table
The electronic configuration of arsenic is 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p³
The electronic configuration of argon is 1s²2s²2p⁶3s²3p⁶
The electronic configuration of arsenic in noble gas notation (Ar) is given as follows;
[Ar]3d¹⁰4s²4p³
Which of the following illustrates a single-replacement reaction?
A. CaCl2 + Na2CO3 → CaCO3 + 2Naci
O B. 2Fe + 3Br2 → 2FeBr3
O C. Ba(NO3)2 + NISO4 → BaSO4 + Ni(NO3)2
D. Fe + CuSO4 → Cu + FeSO4
The equation Fe + CuSO₄ → Cu + FeSO₄ illustrates the single displacement reaction. Hence Option (D) is the correct answer.
What is Single replacement reaction ?
A single replacement reaction, sometimes called a single displacement reaction, is a reaction in which one element is substituted for another element in a compound.
The starting materials are always pure elements, such as a pure zinc metal, iron or hydrogen gas, plus an aqueous compound.
Therefore, the equation Fe + CuSO₄ → Cu + FeSO₄ illustrates the single displacement reaction. Hence Option (D) is the correct answer.
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Au HSO3 nomenclatura
Hi guys tommorow 8:45pm - 9:30pm i need help pls be there
Chemistry
Answer:
okay no problem I will be there
How many atoms are in 490 moles of barium?
Answer:
2.95 * 10^23 atoms
Explanation:
The number of atoms in a mole is always equal to Avogadro's constant, which is 6.02214076×10²³ mol⁻¹.
To find the number of atoms in 0.490 moles of barium, multiply it with Avogadro's constant:
0.490 mol * 6.02214076×10²³ mol⁻¹ ≈ 2.9508 * 10^23
Convert to SigFigs (if necessary):
2.95 * 10^23
Secondary succession can only occur as a transition from primary succession.
Answer:
false
Explanation:
edge 2022
What kind of bonds are hydrogen bonds???
A. An intramolecular covalent bond in the H2 molecule
B. Polar covalent bonds that form between hydrogen and another atom
C. Any bond between hydrogen and a highly electronegative atom
D. Strong polar attractions between molecules involving H,F,O, and N
Hydrogen bonding is a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom. It results from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N, O, or F atom and another very electronegative atom.
0.30 kg cart moves on an air track at 1.2 m/s.It collides with and sticks to another cart of mass 500 g,which was stationary before collision. What is the velocity of the combined carts after collision?
What is lassaigne's test?
Answer:
The Lassaigne's test, also known as
the sodium fusion test, is used in
elemental analysis to determine the
presenceof foreign elements,
specifically halogens, nitrogen, and
sulfur, in an organic compound.
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what creates an ionic bond?
a: The attraction between neutral ions
b: The checks between similarly charged ions
c: the attraction between oppositely charged ions
d: the attraction between neutral atoms
Answer:c
Explanation: it’s c
Which coefficients correctly balance the formula equation below?
AgNO3 + CuCl2 → AgCl + Cu(NO3)2
2, 1, 2,1
1, 1, 3,1
2, 2, 3,1
2, 1, 1,2
Answer:
2, 1, 2,1
Explanation:
The chemical equation of the reaction given in this question is as follows:
AgNO3 + CuCl2 → AgCl + Cu(NO3)2
The reaction is between silver nitrate (AgNO3) and copper (I) chloride (CuCl2) to form silver chloride (AgCl) and copper nitrate (Cu(NO3)2.
However, this above equation is not BALANCED because the number of atoms of each element on both sides of the equation does not equate i.e. are not the same. To balance the equation, we have to make use of COEFFICIENTS, which are numbers used in front of each element in order to balance the equation.
The balanced equation is as follows:
2AgNO3 + CuCl2 → 2AgCl + Cu(NO3)2
From the above balanced equation, we can observe that coefficients used to balance the equation is in the order: 2, 1, 2,1
How many particles are in 13.5 grams of Beryllium ?
There would be 9.03 x [tex]10^{23}[/tex] particles in 13.5 grams of Beryllium.
Recall that 1 mole of a substance contains 6.02 x 10^23 atoms.
Number of moles in 13.5 grams of Beryllium = mass/molar mass
= 13.5/9
= 1.5 moles
Thus, total number of atoms in 1.5 moles Beryllium:
= 1.5 x 6.02 x 10^23
= 9.03 x [tex]10^{23}[/tex]
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Tea contains which acid?
A
Tannic acid
B
Tartaric acid
C
Carbonic acid
D
Citric acid
The diagram shows the breathing system in a human. What does label 1 show?
Answer:
parietal pleura
Explanation:
The pleurae, which are serous membranes, divide the thoracic cavity's wall from the lungs. The parietal pleura covers the interior of the thorax, mediastinum, and diaphragm, while the visceral pleura covers the surface of the lungs.
What is the function of parietal pleura?The perianal pleura, the outer layer, is attached to the chest wall. The lungs, mediastinum's neurovascular structures, and bronchi are all covered by the inner layer (visceral pleura).
The pleura's role in breathing is to enable the lungs to expand and collapse as efficiently as possible.
The parietal and visceral pleura can move over one another without rubbing against one another thanks to the pleural fluid's lubricating properties. The pleural layers themselves produce this fluid.
Therefore, parietal pleura, which surround the lungs in thoracic cavity.
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definition of boiling point
Answer:
boiling point, temperature at which the pressure exerted by the surroundings upon a liquid is equaled by the pressure exerted by the vapour of the liquid; under this condition, addition of heat results in the transformation of the liquid into its vapour without raising the temperature.
Explanation:
Radhe Radhe❤
Explanation:
The point at which a matter melts is called boiling or melting point.
is radiation beneficial or harmful to society explain why
Answer:
Radiation isn't beneficial to society .Radiation damages the cells that make up the human body. Low levels of radiation are not dangerous, but medium levels can lead to sickness, headaches, vomiting and a fever. High levels can kill you by causing damage to your internal organs. It's difficult to treat high radiation exposure.
Explanation:
Exposure to very high levels of radiation, such as being close to an atomic blast, can cause acute health effects such as skin burns and acute radiation syndrome (“radiation sickness"). It can also result in long-term health effects such as cancer and cardiovascular disease.
Radiation is both harmful and beneficial, but when we analyse it is found that harms overweight benefits. Radiation can be used as a form of energy (in nuclear plants), but an accident or malfunction in it can lead to death and injury of humans. Also, it is really difficult to dispose the used devices.
