Answer:
a gallon of water weighs more than a gallon of butane
Which ground-state atom has an electron configuration described by the following orbital diagram?.
Answer:
The energy of atomic orbitals increases as the principal quantum number, n, increases. In any atom with two or more electrons, the repulsion between the electrons makes energies of subshells with different values of I differ so that the energy of the orbitals increases within a shell in the order s< p <d<f. Figure 1 depicts how these two trends in increasing energy relate. The 1s orbital at the bottom of the diagram is the orbital with electrons of lowest energy. The energy increases as we move up to the 2s and then 2p, 3s, and 3p orbitals, showing that the increasing n value has more influence on energy than the increasing I value for small atoms. However, this pattern does not hold for larger atoms. The 3d orbital is higher in energy than the 4s orbital. Such overlaps continue to occur frequently as we move up the chart.
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Atoms are the smallest particle that make up living things, they are made up of subatomic particles; protons, neutrons and electrons. Of these the electrons and neutrons are in the nucleus and the protons orbit around the nucleus. Of the subatomic particles, the electrons have the largest mass and are negatively charged, the neutrons (negative charge) and protons (positively charged) both have a relative mass of 1. Atoms contain an equal number of protons and neutrons, so carry no overall charge. An element is a substance made up of only two types of atom. Elements can be found in the Periodic table of elements, they usually have two numbers next to the chemical symbol, the larger number is generally the atomic number, which represents the number of neutrons and the number of protons. The smaller number is the relative atomic mass which represents the number of electrons or neutrons. In order to calculate the number of neutrons, you minus the atomic number from the relative atomic mass.
Answer:
Atoms are the smallest particle that make up living both living and non living things, they are made up of subatomic particles; protons, neutrons and electrons. Of these the electrons protons and neutrons are in the nucleus and the protons electrons orbit around the nucleus. Of the subatomic particles, the electrons have the largest smallest mass and are negatively charged, the neutrons (negative charge) (no charge) and protons (positively charged) both have a relative mass of 1. Atoms contain an equal number of protons and neutrons electrons, so carry no overall charge. An element is a substance made up of only two one type of atom. Elements can be found in the Periodic table of elements, they usually have two numbers next to the chemical symbol, the larger number is generally the atomic mass number, which represents the number of neutrons and the number of protons. The smaller number is the relative atomic mass atomic number which represents the number of electrons or neutrons protons. In order to calculate the number of neutrons, you minus the atomic number from the relative atomic mass.
How viscosity affects the speed of the liquid in the convection cell.
Explanation:
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What does the word "dutile" mean when used to refer to elements?
Answer:
capable of being hammered out thin, as certain metals; malleable.
Explanation:
Why does water freeze at a temperature lower than 0°c when salt is added to it.
Answer:
Salt molecules block water molecules from packing together when temperature is lowered. It then prevents them from becoming ice. More water molecules leave the solid phase than the ones entering the solid phase. Freezing point depression occurs when the freezing point of the liquid is lowered by addition of solute.
Explanation:
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More than 7,000 islands in the Philippines lack access to electricity, so after the sun goes down, light usually comes through kerosene lamps. While cheap, these fire hazards are bad for the environment and human health.
You are an entrepreneur and would like to suggest to the government of the Philippines a better solution to this problem. But to come up with the solution to this problem, you must first understand the nature of chemical bonding and factors that control the structure of compounds. You will study and understand natural materials behavior to build a very cheap and environmentally friendly lamp.
What material do you think can be a cheaper and better alternative to kerosene?
Question 2 options:
There is no better alternative to kerosene.
A material that contains ions, so it can conduct electricity.
A material that contains gas, as gases can conduct electricity.
A material having covalent boding.
Answer:
Question 1: What material do you think can be a cheaper and better alternative to kerosene?
Answer: Generic lamp oil can be used to replace kerosene in lamps. The cheaper lamp oil burns cleaner and has less odor than the more expensive kerosene.
Question 2:
Correct answer is the last option
Hope this helps!
where electrons are likely to be found as they travel around the nucleus
Answer:
The electrons are most likely to be found in An orbital
i need help on this plsss
Answer:
Ionic Compound
Explanation:
1) NaBr
2) CaCl2
3) MgS
4) AlO
5) Li3P
6) Cs3N
7) KI
8) BaF2
9) RbNO2
10) BaO
11) Potassium oxide
12) Magnesium iodide
13) Aluminum chloride
14) Calcium bromide
15) Sodium nitride
16) Lithium fluoride
17) Barium phosphide
18) Dicesium sulfide
19) Strontium fluoride
20) Sodium chloride
Hope this helps!!
Use the periodic table to identify the number of valence electrons available for bonding for each of the following elements.
C :
H:
N:
O:
P:
CI:
Answer:
Look at the screenshot below.
Those are your answers!
Good Luck.
Explanation:
The number of valence electrons for neutral atoms is the same as the number of the atom's main group.A periodic table element's column can be used to determine its main group number.For instance, carbon, which belongs to group 4, has four valence electrons.
Use the periodic table to identify the number of valence electrons available for bonding for each of the following elements?
This rule states that each group of elements has one valence electron, two valence electrons in group 2, three valence electrons in group 13, four valence electrons in group 14, and so on. C : Six electrons make up the atom of carbon: four valence (outermost shell) electrons in the 2s and 2p orbitals, and two inner shell (core) electrons in the 1s orbital. H : As the initial element, hydrogen has an electron configuration of 1s1.Its valence shell only contains one electron.The outermost electrons or those with the highest energy level are called valence electrons. N : The periodic table's Group 15 is headed by nitrogen, which has either 3 or 5 valence electrons. O : On the periodic table, column 6 contains oxygen (symbol O).Its valence electrons number six.To obtain an octet, two bonds must be created. Ci : If chlorine removes one of its seven valence electrons, it will have eight (an octet).When chlorine gains one electron, its electron configuration resembles that of argon.If chlorine had given up all seven of its valence electrons and sodium had taken them, the octet rule would have been met.To learn more about periodic table refer
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Arrange the events for the hydrolysis of amide bonds by chymotrypsin in their correct order.
1. attack by Ser 195 to give a tetrahedral intermediate
2. protonation by His 57 and release of the free C-terminus of the hydrolyzed bond
3. protonation by His 57 and release of the free N-terminus of the hydrolyzed bond
4. attack by water, leading to formation of a tetrahedral intermediate
5. binding of substrate to properly position the scissile bond for cleavage
a. 5, 1, 3, 4, 2
b. 5,1,2,4,3 5,
c. 1, 3, 2,4 5,
d. 2, 4, 3, 1
Answer:
The answer is A
Explanation:
the order 5,1,3,4,2
To make hot cocoa on the trip, you will need to boil water. Construct an
explanation that describes how the lower air pressure in the mountains affects
this process.
i need an answer in under an hour pls help
Answer:
the water in the mountains will take longer to boil, because of the higher atmospheric pressu
an atom with 3 protons that loses an electron becomes…
Answer:
A +1 Ion of Lithium
Explanation:
Lithium has the atomic number of 3, therefore it has 3 protons
An electron has a negative charge, so losing an electron gives an atom a positive charge.
Answer:
Positive 1 ion of lithium
Explanation:
hope this helps!
When pyridine is treated with a mixture of nitric and sulfuric acids, the major product is:.
Answer: 3-nitropyridine
Explanation:
What is the relationship between the pressure of a gas and the absolute
temperature?
they don't have any relationship between them
¿Cuáles son las características que presentan las enzimas? Explica cada una
Answer:
Acelera las reacciones químicas.
Se requieren en cantidades mínimas.
Son muy específicos en su acción.
Se ven afectados por la temperatura.
Se ven afectados por el pH.
Algunos catalizan reacciones reversibles.
Algunos requieren coenzimas.
Son inhibidos por inhibidores.
Explanation:
What will happen to the density of the water if i put salt in it.
Answer:When salt is dissolved in fresh water, the density of the water increases because the mass of the water increases.
Explanation:
what is the mass of the product of 111.6g and 48g
Answer:
159.6
Explanation:
Due to the law of conservation of mass, mass is neither created nor destroyed in a chemical reaction. Hence, the mass of the product is the equivalent of the mass of the sum of the reactants.
Which of these figures correctly illustrates the nature of the bonding of h2o?.
H2O is composed of two hydrogen atoms and one oxygen atom. The central oxygen atom is sp3 hybridized.
H2O is composed of two hydrogen atoms and one oxygen atom. The oxygen atom is bonded to the two hydrogen atoms at a dihedral angle of 104°. There are two lone pairs on the oxygen atom. The molecule has a bent geometry.
The structure of H2O is shown in the image attached to this answer. The central oxygen atom is sp3 hybridized and the shape of the molecule is based on a tetrahedron owing to its electron pair geometry.
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Compared to the energy of an electron in the second shell of an atom of sulfur, the energy of an electron in the
1
first shell is lower
2
first shell is the same.
3
third shell is lower
4
third shell is the same.
Answer:
First shell is lower
Explanation:
The electron has to absorb energy to excite and go to higher energy levels/ shells and should release energy to go to lower energy levels/ shells. This means higher the shell , more energy is required and vice versa
HURRY for a BRAINLIST
Answer:
B
Explanation:
Answer:
answers
B
Explanation:
Explicaciónexplicacaca
Describe how the suspects used the chemicals found at the crime scene to make the copper coins look silver.
The chemicals found at the crime scene although not mentioned must be Sodium zincate.
Discussion:
An interesting demonstration to show plating and alloys is the conversion of copper coins to silver look-alike coins.
A 'copper' coin when dipped into a solution of sodium zincate in contact with zinc. The coin is plated with zinc and appears silver in colour.
This is a common chemistry classroom trick.
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is isopropyl alcohol the same as hydrogen peroxide
Answer:
Unlike isopropanol, hydrogen peroxide is not a type of alcohol. You might recognize its chemical formula, H2O2, as being similar to that of water (H2O). The difference is that hydrogen peroxide has two oxygen atoms instead of one. That one extra oxygen atom makes it a strong oxidizer.
why the mixture of bromine and ethane is discoloured when left in the sun
Answer:
In the presence of UV light, ethane will react with bromine in a substitution reaction. UV light is the condition under which the reaction will occur so it is written above the arrow in the chemical equation. As the reaction proceeds, the intensity of the re-brown colour of the bromine water decreases.
Answer:
here ya go
Explanation:
combining bromine and ethane leads to a brown gas or liquid which is made of the elements. it is a gas at room temperature and does not affect human beings. there are many uses for bromine compounds but they are mainly used for the manufacturing of chlorine, fire retadants, water purification, graphy chemicals and pharmaceutcals. it is a naturally occurring element that can be found in animals such as sharks since they produce their own.
what is ammonium chloride
Answer:
Ammonium chloride (a chemical compound) is an inorganic compound with the formula NH₄Cl and a white crystalline salt that is highly soluble in water. Solutions of ammonium chloride are mildly acidic. In its naturally occurring mineralogic form, it is known as sal ammoniac.
A sample of gold has a mass of 100 grams and a volume of 5cm^3, calculate the density by dividing the mass by volume
Answer:
20cm^2
Explanation:
Here, Density= Mass/ Volume
=100/5
= 20 cm^2
In your own words, explain why it is necessary to include only one chain-terminating/ synthesis-terminating nucleotide in each well of the electrophoresis instrument.
Answer: DNA sequencing methods employ chain termination nucleotides. Furthermore, if two chain-terminating nucleotides are employed in the same well, determining which strand is ended by which dideoxynucleotide will be impossible.
(its my own words, but i did search it to get this answer, hope it helps!)
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a board measures 212 inches how many feet is this?
Answer: 17.7 feet, Its rounded up since the six repeats.
what is the answer ??z???????
Answer:
I think its Female
Explanation:
Correct me if I was wrong :)
Answer: The answer to this question about the given multiple choices about filling the blank with a missing word in order for you to complete the given statement is "Chest broadens, hips broaden and becomes the rounders. These characters are in the females."
Explanation: I chose B) "Females" for the correct answer in order to fill in the blank with a missing word for you to complete the given statement, so here's the completed statement again, "Chest broadens, hips broaden and becomes the rounders. These characters are in the females.".
I hope my answer with the given multiple choice answer and the given explanation is very helpful to your own chemistry question about the given multiple choices about filling the blank with a missing word in order for you to complete the given statement, please mark me as Brainliest and have a great day! :D
Sincerely,
Jason Ta,
The ambitious of Brainly and the role of The TDSB and WHCI Student of the high school.
When a gas is collected over water, the partial pressure of water must be subtracted from the total pressure. If the total pressure was 761 mmHg and the pressure for water is 17.2 torr, what is the pressure due to the gas collected
Answer is: the partial pressure of the hydrogen 500 mmHg.
p(total) = 523.8 mmHg.
p(water) = 23.8 mmHg.
p(total) = m(water) + p(hydrogen).
p(hydrogen) = p(total) - p(water)..
p(hydrogen) = 523.8 mmHg - 23.8 mmHg.
p(hydrogen) = 500 mmHg.
mmHg or millimeter of mercury is a manometric unit of pressure.
What is an ionic bond.
Answer:
ionic bond is the type of bond formed from electrostatic attraction between oppositely charged ion in a chemical compound