Answer:
liquid, solid, gas
Explanation:
Solid, Liquid and gaseous
There are 5 states of matter
1.) Solid
2.) Liquid
3.) Gaseous
4.) Plasma
5.) Bose Einstein
the First three are main
Which object will have the most kinetic energy?
O Small object moving slowly
O Small object moving quickly
O Large object moving quickly
O Large object moving slowly
Answer:
the large object moving quickly because the more the mas the more kenetic energy
Element Y has two naturally occurring isotopes. The most dominant isotope has a mass of 114.3789 amu and a percent abundance of 64.23%. What is
the mass of the second isoptope if the average atomic mass is 128.4359 amu? Remember that the two percentages will have to sum to 100%.
Answer to the correct number of sigtigs including units in your answer.
(to receive full credit, work must be submitted for this question)
Answer:
153.6771 amu
Explanation:
From the question given above, the following data were:
Isotope A:
Mass of A = 114.3789 amu
Abundance (A%) = 64.23%
Isotope B:
Mass of B =.?
Abundance (B%) = 100 – A%
Abundance (B%) = 100 – 64.23
Abundance (B%) = 35.77%
average atomic mass of Element Y = 128.4359 amu
The mass of the 2nd isotope (i.e isotope B) can be obtained as follow:
Average atomic mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100]
128.4359 = [(114.3789 × 64.23)/100] + [(Mass of B × 35.77) /100]
128.4359 = 73.4656 + (Mass of B × 0.3577)
Collect like terms
128.4359 – 73.4656 = Mass of B × 0.3577
54.9703 = Mass of B × 0.3577
Divide both side by 0.3577
Mass of B = 54.9703 / 0.3577
Mass of B = 153.6771 amu
Therefore, the mass of the 2nd isotope is 153.6771 amu
What is the Mechanical advantage of a machine that only changes the direction of the force?
Answer: 1
Explanation:
The number of times a machine increases a force exerted on it The input force will be the same as the output force.
You pour a spoonful of salt into a glass of water. Explain what happens to the mass of the salt and the mass of the water.
Answer:
If you pour a spoonful of salt into a glass of water, the sodium will react with the water and increase the mass.
Explanation:
what is the heat of reaction H2 + 1/3N2 2/3NH3
A divergent plate boundary is defined as two plates moving toward each other
True or false
Answer:
FALSE
Explanation:
Definition of periodic trends
What property of helium could be used to separate it from natural gas?
Answer: temperature liquefaction
Explanation: At the exact time the only used method or strategy the division of helium from natural gas is low temperature liquefaction
what is the role of the sun in forming convection currents in earths water and air?use scientific reasoning to construct your answer.
Answer:
The heating of the Earth's surface and atmosphere by the sun drives convection within the atmosphere and ocean. This convection produces winds and ocean currents. The greater the pressure differences between a low-pressure area and a high-pressure area, the stronger the winds. I hope this helps
The sun heats the air near the equator of the earth, it becomes less dense and rises upward. As warm air rises, it cools and gets less dense than the air around it.
What is convection?Convection can be d defined as the transfer of heat from one place to another due to the movement of heat or fluid. Convective heat transfer involves the processes of conduction as well as advection.
Gases and liquids can not be good conductors of heat under normal conditions, but they can easily transfer heat.
Convection occurs through diffusion or advection but does not take place in solids, as there is no movement of its constituent particles happens. The diffusion of heat in solids is known as thermal conduction.
The heat transfer that occurs between a surface and a liquid that is in contact with the surface is convection heat transfer.
The Sun provides the energy for the convection in the ocean and produces ocean currents. There are two kinds of ocean currents: one is surface currents and the other deep currents.
Learn more about convection, here:
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WILL MARK BRAINLIEST!!!! HELPPPP
what is the difference between simple distillation and fractional distillation
Answer:
Fractional distillation is essentially the same as simple distillationexcept that a fractionating column is placed between the boiling flask and the condenser. The fractionating column is usually filled with glass or plastic beads. These beads improve the separation between the liquids being distilled.
Explanation:
Answer:
Explanation:
The difference between simple and fractional distillation is the number of times that the liquid is vaporized and condensed. Simple distillation condenses the liquid once, so the boiling points of the two liquids must be far apart to make it efficient. The number of simple distillations in a fractional distillation apparatus depend on the length and efficiency of the fractionating column. The process is the same; the difference is mainly one of iteration.
brainliest pweaseeee
Where is chemistry used?
A. In all areas of life
B. Only in the food industry
C. Mostly in medicine
D. Mostly in manufacturing
Answer:
A
Explanation:
chemistry is used in all areas of life
Answer: A
Explanation:
just got it right
Energy and wavelength have a (n)___
relationship
help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help
Answer:
A
Explanation:
i think
At present, fusion reactions... Group of answer choices produce the energy in some nuclear power plants. cannot be used to produce energy in reactors. produce the energy in all recent nuclear power plants. produce the energy in most nuclear power plants.
Answer:
cannot be used to produce energy in reactors.
Explanation:
Currently, there is no reactor that can allow the use of nuclear fusion, although nuclear plants use nuclear fission reactors.
Nuclear fusion happens when thousands of atoms collide with each other when they are in the midst of extreme conditions of literature and pressure. This collision causes the atoms to fuse, creating another element. The process releases amounts of light and heat, promoting a high release of energy. This whole process occurs without the release of CO2 into the atmosphere, without the release of toxic waste and without the risk of explosions, which makes nuclear plants have a strong interest in building a reactor to use this type of energy. For this reason, scientists from different countries have collaborated with each other on a project called Iter, which seeks to build a reactor and achieve the first reaction in 2025.
Plz, Help :/ you can choose any question you want or all of it if you pleased.
Answer:
29. Proteins support the body's structural framework, chemical reactions, and contractions (muscle movement).
30. Proteins have a primary structure (polypeptide chain of amino acids), secondary structure (made up of alpha helices and beta pleat sheets), tertiary structure (superimposed on secondary structure), and quaternary structure (2 or more polypeptide chains with its own tertiary structure).
31. Protein molecules can denature if conditions aren't right, such as the wrong temperature or pH level. When denatured, proteins typically lose their shape and their function for a short time because their active sites become deactivated (though if conditions are too extreme, they can permanently lose their function). This happens to globular proteins because they are not nearly as stable as fibrous proteins due to their functional 3D shape.
I just did the first 3 since I could easily access the proteins section in my textbook at the moment. :)
The smallest particle of any particular type of matter is known by which of the following terms?
Group of answer choices
Compound
Chemical
Element
Atom
HELP ASAP BIG; POINTS I REALLY nEED THESE
Answer:
76
120
Explanation:
the upper number is the sum of Protons and neutrons. and the lower one is the number of Protons! to find the number of neutrons, all you have to do is: upper number-lower number=number of neutrons
Help please! Which of earth's layers is responsible for creating the earth's magnetic field?
A. inner core
B. outer core
C. mantle
D. crust
Answer:
inner core
Explanation:
Answer:
The outer core.
Explanation:
There is liquid metal, like iron, which creates electric currents going through the ground. When the Earth rotates on it's axis, it creates a magnetic field.
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the basic unit of matter is know as a(n)
a. atom
b.cell
c. element
d. compound
Answer:
a. atom
Explanation:
Completion of the human genome map
a) during the 1800’s
b) 1990-present
c) before the 1800s
d) 1900-1988
Answer:
I think it a or c yea a or c
Which of the following is a covalently bonded molecule?
A) CI2
B) air
C) Ne
D) salt
Answer:
D:salt this is the correct answer
How do you work out the charge of sulphate
Answer:
You would have find its valency
Help, please!
Which property of a substance can be determined using a pH indicator ?
Density
Acidity
Electrical Conductivity
Thermal Conductivity
Boiling Point
An unknown element has two isotopes. The first isotope has a mass of 68.926 amu and an abundance of 60.108%. The second isotope has a mass of 70,925 amu and an abundance
of 39.892%. Calculate the average atomic mass AND identify the element.
Answer:
69.72344108
Gallium
Explanation:
the electron config for 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p3
Answer:
I don't understand what you are asking
Molten steel is poured into molds to make car parts and then allowed to cool and harden. This is an example of –
A. Physical change
B. Physical property
C. Chemical change
D. Chemical property
Answer:
A. Physical Change
Explanation:
Physical change is a type of change in which no new substance is formed, change of state can occur, the appearance of matter can be altered but not its chemical component.
Molten steel being poured into molds to make car parts and then allowed to cool and harden is an example of Physical change because;
- A change of state only occured from molten steel to solid steel.
- No new substance is formed.
the final step of the scientific method is to ____ the results
Answer:
The final step of the scientific method is to communicate the results
Which substance is a heterogeneous mixture? WILL LIKE AND THANK WHOEVER IS CORRECT :)
Suspension
Solution
Compound
Colloid
Answer:
Suspension!
Explanation:
A suspension is a heterogeneous mixture in which the solute particles do not dissolve, but get suspended throughout the bulk of the solvent, left floating around freely in the medium. The other answers are homogeneous, not heterogenous.
Have a fantastic day!
Elements that are good conductors, malleable, ductile, and shiny
ductility
malleability
metal
metalloid
nonmetal
Metals are ductile,malleable,good conductors and shiny
Draw the electric field lines between a proton and an electron. According to Coulomb's law, how would the electrical force between these particles change if the product of their electrical charge increased?
Explanation:
An electron has a negative charge and a proton is a positively charged particle. Electric field lines are used to express the direction of the electric field. For a positive charge, it is outwards while for a negative charge it is inwards. The attached figure shows the electric field lines between a proton and an electron. The field lines emerge from proton and terminate at electron.
The electrical force between charges is given by :
[tex]F=k\dfrac{q_1q_2}{r^2}[/tex]
r is the distance between charges
The force is directly proportional to the product of charges. It means that if the product of electrical charge increased, it means that the electrical force will increase proportionally.
