Answer:
Heres a very LONG answer-
The real answer:
Its in the kinetic-molecular theory, the temperature of a substance is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles.
Which of the following best describes spectator ions? A. that do not participate in the reaction B. lons made when compounds dissolve in water C. that are made of a single element D. Ions that combine to form a precipitate
Answer: A. that do not participate in the reaction
Answer:
a
Explanation:
a p e x :)
Chemical Equations :p
Explanation:
4NH₃ (g) + 5O₂ (g) → 4NO (g) + 6H₂O (g) Ba(ClO₃)₂ (s) → BaCl₂ (s) + 3O₂ (g) 2Al (s) + 3Zn(NO₃)₂ (aq.) → 3Zn (s) + 2Al(NO₃)₃ (aq.) 2C₈H₁₈ (g) + 25O₂ (g) → 16CO₂ (g) + 18H₂O (g)1.How ls an organism organized from the smallest to largest structure?
O Tisaue, Cell, Organ aystem, Organism, Organ
O Cell, Tisaue, Organ, Organ ayatem, Organism
O Cell, Tisaue, Organ aystem, Organ, Organism
O Cell, Organ, Tiasue, Organ aystem, Organiam
Answer:
Cell, Tissue, Organ, Organ system, Organism
In diamond, each carbon atom is covalently bonded to four other carbons in a
a. Polyhedron
b. Hexagon
c. Pentagon
d. Tetrahedron
Answer:
Tetrahedron
Explanation:
Each carbon atom in a diamond is covalently bonded to four other carbons in a tetrahedron. These tetrahedrons together form a three-dimensional network of six-membered carbon rings in the chair conformation, allowing for zero bond-angle strain.
1. distance = 10 m
time = 2 s
What is this object's speed?
Answer:
5m/s
Explanation:
2s ÷ 2 = s
10m ÷ 2 = 5m
5 meters per second or 5m/s
D 6) Select True or False.
Solar flares can affect how machines on Earth work.
False
True
Answer:
true
Explanation:
Answer:
False
Explanation:
Since when did Solar flares can affect how machines on Earth work that is negitive they have never affected how our machines work
The sum of all the potential energy and kinetic energy in an object is equal to it's
Answers Choices: A. Thermal Energy B. Kinetic Energy C.Potential Energy D. Force PLEASE HELP DUE TODAY
Answer:
B. kinetic energy
Explanation:
The sum of kinetic energy and potential energy of an object is its total mechanical energy.
Your explanation should include a claim, evidence, and scientific reasoning based on the data provided and the process of photosynthesis.
Answer:
yuh 100% true dude
Explanation:
...............
How many atoms are present in 1.4 grams of aluminum?
Answer: 3.2x10^23
Explanation:
Start by finding the molar mass of aluminum.
Then turn grams into moles by dividing grams of substance by molar mass. 1.4g÷26.98g
Then multiply that by 6.022x10^23 atoms. 0.0519x6.022x10^23
You can use dimensional analysis to solve this type of problem.
Which statement best compares potential and kinetic energy?
Objects always have more potential energy than kinetic energy.
Kinetic energy increases and potential energy decreases when the velocity of an object increases.
Only potential energy decreases when an object’s height increases.
Objects always have more kinetic energy than potential energy.
Answer:
Its B) Kinetic energy increases and potential energy decreases when the velocity of an object increases.
Explanation:
because i took the test on edge 2020
Taking into account the definition of kinetic, potencial and mechanical energy, the tatement that best compares potential and kinetic energy is: Kinetic energy increases and potential energy decreases when the velocity of an object increases.
Kinetic energyKinetic energy is a form of energy. It is defined as the energy associated with bodies that are in motion.
Kinetic energy is defined as the amount of work necessary to accelerate a body of a given mass and at rest, until it reaches a given speed. Once this point is reached, the amount of accumulated kinetic energy will remain the same unless there is a change in speed or the body returns to its state of rest by applying a force.
The kinetic energy is represented by the following expression:
Ec= ½ mv²
Where:
Ec is the kinetic energy, which is measured in Joules (J).m is the mass measured in kilograms (kg). v is the speed measured in meters over seconds (m/s).Potential energyPotential energy is the energy that measures the ability of a system to perform work based on its position.
Gravitational potential energy is the energy associated with the gravitational force. This will depend on the relative height of an object to some reference point, the mass, and the force of gravity as follow:
Ep= m×g×h
Where:
Ep is the potential energy in joules (J).m is the mass in kilograms (kg).h is the height in meters (m).g is the acceleration of fall in m/s² (approximately 9.81 m/s²).Mechanical energyFinally, mechanical energy is that which a body or a system obtains as a result of the speed of its movement or its specific position, and which is capable of producing mechanical work. Then:
Potential energy + kinetic energy = total mechanical energy
Principle of conservation of mechanical energyThe principle of conservation of mechanical energy indicates that the mechanical energy of a body remains constant when all the forces acting on it are conservative (a force is conservative when the work it does on a body depends only on the initial and final points and not the path taken to get from one to the other.)
Therefore, if the potential energy decreases, the kinetic energy will increase. In the same way, if the kinetics decreases, the potential energy will increase.
Statement best compares potential and kinetic energyTaking into account the definition of kinetic energy, when the velocity of an object increases the kinetic energy increases.
Therefore, considering the principle of conservation of mechanical energy, the potential energy decreases.
So, the correct answer is the second option: Kinetic energy increases and potential energy decreases when the velocity of an object increases.
Learn more about mechanical energy:
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serup is which solution
Answer:
dilute solution . . . . . . .
Explanation:
. .
Answer:
dilute soloution
Explanation:
dilute soloution as it dissolves
What is the molecular formula of the compound with a molecular weight of 112 g/mol and percent composition: 85.6% C and 14.4% H?
Select one:
a. C2H4
b. CH2
c. C4H8
d. C8H16
Answer:
Molecular formula = C₈H₁₆
Explanation:
Given data:
Percentage of hydrogen = 14.4%
Percentage of carbon = 85.6%
Molecular formula = ?
Molecular weight = 112 g/mol
Solution:
Number of gram atoms of H = 14.4/ 1.01 = 14.26
Number of gram atoms of C = 85.6/ 12 = 7.13
Atomic ratio:
C : H
7.13/7.13 : 14.26/7.13
1 : 2
C : H = 1 : 2
Empirical formula is CH₂
Molecular formula:
Molecular formula = n (empirical formula)
n = molar mass of compound / empirical formula mass
n = 112 / 14
n = 8
Molecular formula = n (empirical formula)
Molecular formula = 8 (CH₂)
Molecular formula = C₈H₁₆
FULL TITUIE Lait veluw. How Element Valence Electrons electrons Gain / lose Symbol and Charge Cation or Anion Metal, Nonmetal, or Metalloid many Calcium 1+ loso 2 ca? cation Metal Bromine Nitrogen Iron (111) 3 Tin (II) 2 Fluorine Cesium lodine Phosphorus Copper (1) Lithium Aluminum Sulfur Manganese (IV) 4 Chlorine Oxygen
Answer:
Can you translate to english? but i think its X
Explanation:
What is the value for AG at 100 Kif AH = 27 kJ/mol and AS = 0.09 kJ/(mol-K)?
A. AG = 2700 kJ/mol
B. AG = -36 kJ/mol
C. AG = 0 kJ/mol
D. AG = 18 kJ/mol
Answer:
ΔG = 18KJ/mol
Explanation:
Given data:
ΔS = 0.09 Kj/mol.K
ΔH = 27 KJ/mol
Temperature = 100 K
ΔG = ?
Solution:
Formula:
ΔG = ΔH - TΔS
ΔH = enthalpy
ΔS = entropy
by putting values,
ΔG = 27 KJ/mol - 100K(0.09 Kj/mol.K)
ΔG = 27 KJ/mol - 9 KJ/mol
ΔG = 18KJ/mol
The most abundant element is
A. Sulfur
B. Oxygen
C. Silicon
D. Carbon
E. hydrogen
Answer:
E. hydrogen
Explanation:
Hydrogen is the most abundant element in the Universe.Answer:
Its E. hydrogen
Explanation:
How many grams are in 2.190mol Mg2(SO4)3?
Mass MgSO₄ = 262.8 g
Further explanationGiven
2.190 mol MgSO₄
Required
mass
Solution
The molecular formula should be MgSO₄
So MW MgSO₄ :
= Ar Mg + Ar S + 4. Ar O
= 24 + 32 + 4. 16
= 120 g/mol
Mass MgSO₄ :
[tex]\tt mass=mol\times MW\\\\mass=2.19\times 120\\\\mass=262.8~g[/tex]
What is different about the position of that letter if an acid starts with a C?
Answer:
i think it's will difference from compund to compund
PLEASE HELP ASAP I LOVE YOU ILL GIVE YOU BRAINLY
Answer:The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance (the decimal associated with percent of atoms of that element that are of a given isotope).
Explanation:try to find what i ment and think you will get the answer
Answer:
I think the answer is b or d
Explanation:
I THINK IS THE KEY WORD HERE
What is the name given to the group 0 elements
Answer:
the noble gases
How do we get heat from the sun?
Answer:
When the Sun's energy moves through space, it reaches Earth's atmosphere and finally the surface. This radiant solar energy warms the atmosphere and becomes heat energy. This heat energy is transferred throughout the planet's systems in three ways: by radiation, conduction, and convection.
Explanation:
Answer:
The sun radiates energy in all directions. Most of it dissipates into space, but the tiny fraction of the sun's energy that reaches Earth is enough to heat the planet and drive the global weather system by warming the atmosphere and oceans. The delicate balance between the amount of heat Earth receives from the sun and the heat that Earth radiates back into space makes it possible for the planet to sustain life.
Hopefully, this helps you out!
Question 3
The element with electron configuration 1s^2 2s^s 2p^6 3s^2 3p^2
S (Z = 16).
Mg (Z = 12).
C (Z = 6).
Si (Z = 14).
Answer:
I'm on the same question as you
why is the layer of fat on top
Answer:
The solid layer of fat on top protects the broth from freezer burn. When I take the broth out of the freezer I use a butter knife to pop the fat cap off before defrosting. I do save chicken fat from soup and use it instead of butter or olive oil when I cook onions.
Explanation:
hit the heart
12 blue cups ,9 red cups ,and 14 white cups,
Aria is riding her bike. She is bent slightly over, holding
onto her handlebars. She wants to go faster.
Which best explains what she should do?
She should bend her hips so her head is closer to the
handlebars.
She should sit straight up on the bike, keeping her
arms tight to her body.
She should spread her arms wide while sitting
straight in her seat.
She should flap her arms up and down like a bird.
Answer:
She should bend her hips so her head is closer to the handlebars.
Answer:
the answer is A did it on edge
Explanation:
You have 286.7g of PbO. For lab, you need 2.50M PbO. How much PbO can you make? Don't forget your units.
Answer:
0.514 L (liters)
Explanation:
I took the Quizziz, and hope this helps!Nuclear fusion reactions release more energy than fission reactions while also generating less waste. However, nuclear fusion reactors are not currently used to generate electricity.
What is the main reason for this?
Nuclear fusion reactions release high energy and required tremendous temperature of nuclear reactors is the main reason for not used to generate electricity.
What are nuclear reactions?Nuclear reactions are those reactions which are taking place in the nucleus of any unstable atom and produces energy.
As in the question it is given that nuclear fusion reactions releases more energy and less wastage, but this energy are releases in the tremendous amount which can be proved harmful for the environment and the humans. To carry out this reaction we have to maintain the very high temperature of nuclear reactors of about 6 times greater than sun's temperature, which is not possible manually.
Hence, high temperature of nuclear reactors and high amount of energy released is the main reason.
To know more about nuclear reactions, visit the below link:
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The properties of matter depend on the types of atoms a substance is made of.
true of false?
true 100% i just had a quiz on this.
Aluminum nitrate reacts with sodium hydroxide to form a precipitate of aluminum hydroxide. What mass of aluminum hydroxide will precipitate when 35.5 mL of 0.145 mol/L aqueous aluminum nitrate is mixed with 44.2 mL of 0.215 mol/L aqueous sodium hydroxide?
Answer:
The mass of aluminum hydroxide that will precipitate when 35.5 mL of 0.145 mol/L aqueous aluminum nitrate is mixed with 44.2 mL of 0.215 mol/L aqueous sodium hydroxide is approximately 0.247 grams
Explanation:
The given parameters are;
The volume of 0.145 mol/L aqueous aluminum nitrate in the reaction = 35.5 mL
The volume of 0.215 mol/L aqueous sodium hydroxide in the reaction = 44.2 mL
The balanced chemical equation for the reaction is given as follows;
Al(NO₃)₃ (aq) + 3NaOH (aq) → Al(OH)₃ (s) + 3NaNO₃ (aq)
Therefore;
1 mole of Al(NO₃)₃, reacts with 3 moles of NaOH to form 1 mole Al(OH)₃, and 3 moles of NaNO₃
The number of moles of aqueous aluminum nitrate in the reaction = 35.5/1000 L × 0.145 mol/L = 0.0051475 moles
The number of moles of aqueous sodium hydroxide in the reaction = 44.2/1000 L × 0.215 mol/L = 0.009503 moles
Therefore, 0.009503 moles NaOH will react with 0.009503/3 moles Al(NO₃)₃ to form 0.009503/3 moles of aluminum hydroxide precipitate
The molar mass of aluminum hydroxide = 78 g/mol
Therefore, 0.009503/3 moles of aluminum hydroxide weighs 78 × 0.009503/3 = 0.247078 grams
The mass of aluminum hydroxide that will precipitate out ≈ 0.247 grams.
When an atom becomes an ion, the number is written as a blank
PLS HELPPPPPPP and explain how to do it
Answer: 3.613x10^24
Explanation: Avogadro’s number represents the number of atoms in one mole of substance: 6.022x10^23 atoms/mole. Multiplying the number of moles by this number reveals that, in this sample, 3.613x10^24 atoms of methane are present.
Answer: A
Explanation: When using dimensional analysis, always put similar unit-ed numbers diagnolly from each other so they 'cross out'
For example, If you had 1 mol of gold and you wanted to convert it to grams using gold's molar mass, 196.97 g/mol, it would look like this:
Start with the given number over nothing:
[tex]\frac{1 mol Au}{} *\frac{ }{ }[/tex]
Then add your conversion, in this case the molar mass, with the MOLES on the BOTTOM, so they are diagnol with the 1 mol of Au
[tex]\frac{1 mol Au}{ } *\frac{196.7 g Au}{1 mol}[/tex]
Always have the top right in your dimensional analysis be in the units that you are solving for. In this case, we went from moles to grams, so grams is in the top right.
Hope this helps!
Also, 6.02 x 10²³ is otherwise known as avogadros number- it is used when you are converting something from moles to molecules (or particles). For example, if instead we were going from moles of gold to molecules of gold, our dimensional analysis would look like this:
[tex]\frac{1 mol Au}{ } *\frac{6.02 x 10^2^3 molecules Au}{1 mol}[/tex]