yo, what's up ( you don't have to answer that ) um I just need at least 2 of these answered if you want to do all 3 that's cool but you just need to do 2 of them.
1. compare the term " ground state " to the energy of an atom and its electron configuration.
2. describe how metallic bonding accounts for the conductive property of metals. discuss both electrical and heat conduction.
3. describe the relationship between intermolecular forces and physical property. What is the cause of the relationship?
Answer:
1. The ground state describes the lowest possible energy that an atom can have. An electron is normally in its ground state, the lowest energy state available.
2. In a metal, atoms readily lose electrons to form positive ions (cations). These ions are surrounded by delocalized electrons, which are responsible for conductivity. The solid produced is held together by electrostatic interactions between the ions and the electron cloud. These interactions are called metallic bonds. The metallic bonding model explains the physical properties of metals. Metals conduct electricity and heat very well because of their free-flowing electrons. As electrons enter one end of a piece of metal, an equal number of electrons flow outward from the other end.
3. Physical properties are affected by the strength of intermolecular forces. Melting, boiling, and freezing points increase as intermolecular forces increase. Vapor pressure decreases as intermolecular forces increase. The physical state and properties of a particular compound depend in large part on the type of chemical bonding it displays. This is because the energy required to disrupt the intermolecular forces between molecules is far less than the energy required to break the ionic bonds in a crystalline ionic compound.
Explanation:
Sorry for late reply. I really hope this helps. :)
D
Learning Task No. 1: Give your conclusion regarding the picture below.
What are the things you can do to prevent dangers in the kitchen. List down
safety measures to this scenario in your notebook.
Dangers in the Kitchen
Heart at rate 5 star
kung sino man po Ang makasagot nito ng marami
Answer:
My conclusion about the picture above. Is cleaning or arrange all things in the kitchen is one of the reason to avoid us in danger.The things that we can prevent danger in the kitchen always clean the kitchen room,things especially to a hazard things.
burning is one of danger things that happrn in the kitchen.
what is the empirical formula of a tin oxide that is 78.8% tin?
Answer: 93.2g
Explanation:
Please describe the main job of the
digestive system and excretory system in
your own words.
what is the advantage of highly diverse ecosystem
Answer:
Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. For example, A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms
Explanation:
Describes a metal shine and ability to reflect light.
Answer:
the light reflects onto metal, which reflects the light! :)
Explanation:
What process is shown by letter A in the diagram
Answer:
21
Explanation:
2 + 2 = 21
64. Human beings are composed of progressively larger units of organization. Which unit of organization includes all the others?
Ocells
O organs
systems
tissues
Answer:organs
Explanation:
Enzymes are catalysts in living things, including in the molds and bacteria that cause the spoiling reactions that decompose food. Use your knowledge of reaction rates to explain why food doesn’t rot as fast when it is covered and refrigerated. For full credit identify two different factors and explain how they are slowing down the reaction.
I already have that the cold temperature will slow down the reaction, and I'm sure the covering has something to do with it, but I'm not sure what the factor could be. I think my answer has to be one of the factors we learned in class (which are catalyst, concentration, surface area, and temperature).
Answer: Discover ZEISS Solutions
Investigate soft materials like polymers, catalysts, coatings and chemicals to gain a better understanding of their properties. Analyze surface topography, chemical composition, tensile deformation and fracture patterns. Scroll down this page and discover microscopy characterization techniques and solutions from ZEISS enabling you to perform soft materials research in your lab efficiently.
Answer: Discover ZEISS Solutions
Investigate soft materials like polymers, catalysts, coatings, and chemicals to gain a better understanding of their properties. Analyze surface topography, chemical composition, tensile deformation, and fracture patterns. Scroll down this page and discover microscopy characterization techniques and solutions from ZEISS enabling you to perform soft materials research in your lab efficiently.
If 1 inch = 2.54cm how much cm = 1 foot?
Answer:
30.48 cm equals a foot
Explanation:
Answer:
30.48 cm
Explanation:
Inch is an imperial and United States Customary systems unit of length, equal to 1/12 of a foot.
1 inch = 2.54 cm.
1 ft= 30.48 cm
Calculate the number of moles of NaOH that are needed to react with 500.0 g of
H2SO4 according to the following equation:
H2SO4 + 2NaOH →
Na2SO4 + 2H2O
Answer:
2.55 moles of NaOH are needed react with 500.0 gram of H₂SO₄.
Explanation:
Given data:
Mass of H₂SO₄ = 500.0 g
Number of moles of NaOH needed = ?
Solution:
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
Number of moles of H₂SO₄:
Number of moles = mass/molar mass
Number of moles = 500.0 g/ 98.07 g/mol
Number of moles = 5.09 mol
Now we will compare the moles of H₂SO₄ and NaOH.
H₂SO₄ : NaOH
1 : 2
5.09 : 1/2×5.09 = 2.55 mol
Thus, 2.55 moles of NaOH are needed react with 500.0 gram of H₂SO₄.
The number of mole of NaOH required to react with 500 g of H₂SO₄ is 10.2 moles
We'll begin by calculating the number of mole of in 500 g of H₂SO₄
Mass of H₂SO₄ = 500 gMolar mass of H₂SO₄ = (2×1) + 32 + (16×4) = 98 g/mol Mole of H₂SO₄ =?Mole = mass / molar mass
Mole of H₂SO₄ = 500 / 98
Mole of H₂SO₄ = 5.1 moles
Finally, we shall determine the mole of NaOH required for the reaction.
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
From the balanced equation above,
1 mole of H₂SO₄ required 2 moles of NaOH.
Therefore,
5.1 moles of H₂SO₄ will require = 5.1 × 2 = 10.2 moles of NaOH
Thus, 10.2 moles of NaOH is required for the reaction
Learn more about stiochoimetry: https://brainly.com/question/16727444
Benjamin Franklin invented the lightning rod as a way to prevent lightning from causing damage to property or people. Use this same idea to construct a device that can protect a person from static charge buildup in their body as they run on a treadmill. Consider that the person wears rubber-soled shoes that rub on the treadmill's running surface, which generates static charges that build up in their body. When the person finishes her workout, she can receive an unpleasant shock when she steps off the treadmill and touches an object that suddenly discharges all of that charge. How can you apply Ben Franklin's idea of a lightning rod to solve this problem? Create a sketch showing how your shock protection system works. Your sketch should be labeled and clearly indicate how the excess static charge in a human body is discharged by the system you design. 12 f(x) (1000) 1 G
Answer:
By 1750, in addition to wanting to prove that lightning was electricity, Franklin began to think about protecting people, buildings, and other structures from lightning. This grew into his idea for the lightning rod. Franklin described an iron rod about 8 or 10 feet long that was sharpened to a point at the end.
Explanation:
Most meteors that fall into the Earth's atmosphere burn up before reaching
the ground. Why is this?
How do the two desalination processes differ from the atmospheric water generator in terms of where the processes can be used?
Answer:
Water Desalination Processes. Water desalination processes separate dissolved salts and other minerals from water. Feedwater sources may include brackish, seawater, wells, surface (rivers and streams), wastewater, and industrial feed and process waters. Membrane separation requires driving forces including pressure (applied and vapor)
Explanation:
Salinized water cannot be consumed by humans, but it can be converted into freshwater, which has a variety of purposes. Desalination is the procedure, and it is being employed increasingly frequently all over the world to supply people with the freshwater they require.
What is desalination process?Desalination is the procedure used to remove the dissolved mineral salts from water. Currently, one of the most popular methods for obtaining fresh water for use in agriculture or human consumption when applied to seawater.
When seawater evaporation occurs, salt is left behind, and clouds are formed, which eventually result in rain. Da Vinci realised that it was easy to obtain using a still. Aristotle had observed that seawater would evaporate and condense into fresh water.
Seawater desalination was mostly utilised on ships and submarines over the next centuries to supply the crew with fresh water during lengthy voyages. Nevertheless, this method was not widely accessible until the industrial revolution and, more specifically, until the creation of desalination facilities.
To know more about desalination, visit;
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you guys I need help !
Answer:
i think a as well but not sure
Explanation:
Which element is less electronegative than silicon (Si)? A. Sulfur (S) B. Magnesium (Mg) C. Carbon (C) D. Oxygen (0)
Answer:
C. Carbon
Explanation:
Carbon has an electronegativity of 2.55, followed by Tin at 1.96, Silicon at 1.90 and the least electronegative would be Lead at 1.87.
answer Answer Answer Answer
Answer:
A
Explanation:
The carrot itself was made up of the same chemical bonds and chemicals even when it was cut but it was cut affecting the form/shape
In chemical changes, the object undergoes a change where the chemicals themselves undergo a change
If 4.5 moles of AlCl3 were made, how many moles of CuCl2 were used?
Answer:
6.75 moles of CuCl₂ were used
Explanation:
Given data:
Number of moles of AlCl₃ formed = 4.5 mol
Number of moles of CuCl₂ used = ?
Solution:
Chemical equation:
3CuCl₂ + 2Al → 2AlCl₃ + 3Cu
Now we will compare the moles of CuCl₂ and AlCl₃
AlCl₃ : CuCl₂
2 : 3
4.5 : 3/2×4.5 = 6.75
6.75 moles of CuCl₂ were used.
Enthalpy of reaction described for 3Mg+N2---->Mg3N2?
Oxidation-Reduction Reactions. The term oxidation was originally used to describe reactions in which an element combines with oxygen. Example: The reaction between magnesium metal and oxygen to form magnesium oxide involves the oxidation of magnesium.
Hope I helped :)
how many particles are in 4.50 moles of carbon?
what are two examples of the codominance in animals or plants
Answer:
Examples of codominance in animals include speckled chickens, which have alleles for both black and white feathers, and roan cattle, which express alleles for both red hair and white hair. Codominance is also seen in plants.
What is the volume of a sample of ammonia gas (NH3) if it contains 0.23 moles?
The volume of a sample of ammonia gas : 5.152 L
Further explanationGiven
0.23 moles of ammonia
Required
The volume of a sample
Solution
Assumed on STP
Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters / mol.
So for 0.23 moles :
= 0.23 x 22.4 L
= 5.152 L
Hydrogen atoms fuse together to form helium atoms. This releases a huge amount of energy in the form of _______ and ______. (called Nuclear fusion)
Answer:
Hydrogen atoms fuse together to form helium atoms. This releases a huge amount of energy in the form of Kinetic energy of the alpha particle and Electromagnetic radiation.
Explanation:
Nuclear Fusion is the Nuclear process in which the energy is produced when two lighter elements are collided together which are having some kinetic energy in them after that the two lighter nuclei will fuse together into a single heavier nuclei. This is opposite to what happens in Fission process in which the breaking up of atomic specie happens.
Both Nuclear Fission and Nuclear fission occurs with the release of massive amount of energy.
There are conditions for nuclear fusion to happens like, it requires 100 million's kelvin of temperature, also fusion will occur when the pressure is very high because increased pressure will result into squeezing of the atomic specie and hence they will fuse.
When the Hydrogen atom fuse together to form helium atoms. This release a huge amount of energy in the form of Kinetic energy of the alpha particle and Electromagnetic radiation.
meaning made of rock. All are solid, dense, ond rocky
O Jupiter
O Terrestrial Planets
Gaseous Planets
Outer Planets
Answer:
Terrestrial Planets
Explanation:
Terrestrial planets are made up of rocks. They are all solid, dense and rocky in nature.
There are four known terrestrial planets which are Mercury, Venus, Earth and Mars.
These planets are orbits round the Sun in an elliptical orbital.
The other planets in the solar system are the gaseous planets. They are otherwise called gas giants.They are predominantly made up of gases. They are Jupiter, Saturn, Uranus and NeptuneThe Gas giants are also called outer planets.
Which of the following statements is true?
The value of q is negative when heat flows into a system from the surroundings
Heat flows from the system into the surroundings in an exothermic process
In an endothermic process heat flows from the system into the surroundings
Enthalpy is not a state property
The value of q is negative in an endothermic process
wich atom contains exactly 15 protons
Answer:
phosphorus
Explanation:
15 is the atomic number, so you know phosphorus has 15 protons.
What is the name of N4O10?
Answer:
nitric acid anhydride
OR
Dinitrogen pentaoxide
The name of N4O10 is Tetranitrogen decaoxide.
In order to name this compound, we have to consider the number of atoms of each element in the compound.
Looking at the compound, we can see that there are four nitrogen and ten oxygen atoms. Nitrogen is an element in group 15 of the periodic table and has five valence electrons. Oxygen is an element in group 16 of the periodic table and has six valence electrons. These two elements combine to give tetranitrogen decaoxide (N4O10).
Hence, the accurate name of the compound is tetranitrogen decaoxide.
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please help !! ill mark Brainliest, at least explain how. :(
Answer:
473g
Explanation:
25 + 8(56) = 473
A protein is a polymer consisting of a specific sequence of _____???
DNA nucleotides fatty acids amino acids RNA nucleotides
Amino Acids is your answer
Areas near large bodies of water tend to have which type of climate a: moderate b: polar c: dry
Answer:
a
Explanation:
Answer:
a
Explanation: