How is a mixture different from a compound?
a. Mixtures are commonly found in nature.
b. Solids, liquids, and gases can form mixtures.
c. Mixtures have two or more components.
d. Each substance in a mixture keeps most of its characteristic properties.
Answers
Answer:
I think the answer is d. Each substance in a mixture keeps most of its characteristic properties.
Answer:
C
Explanation:
Compounds are formed because of chemical bonding between two elements and Mixtures are formed when substances are physically mixed with one another. A mixture contains two or more types of pure substances (elements or compounds) moved physically not chemically; they do not contain any atomic bonds.
Related Questions
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
List 2 evidences for climate change.
This is 6th grade science. Amplify.
Answers
Answer:
Global Tempurature is rising
Sea level is rising
Explanation:
This is evidence of climate change. Depending on where you live it could be different like in florida there was a drought.
1. our sea level is rising my a lot
2. our global temperature has changed a lot over the years as well.
Chemical Weathering Rocks are changed by chemical and physical weathering. During chemical weathering, the composition of the rock is changed. Extreme heat and pressure within Earth can also cause rocks to change chemically. Physical weathering is the breaking down of rock by wind, water, ice, temperature change, and plants. It changes the shape and size of rocks, but it does not change their properties.
circle each example of chemical weathering
•Shale is worn into small pieces by the wind.
• Sandstone experiences heat and pressure and becomes quartzite.
• Calcium carbonate dissolves.
• Rocks break into pieces as they tumble down a mountain.
Answers
An example of chemical weathering are;
Sandstone experiences heat and pressure and becomes quartzite. Calcium carbonate dissolves.What is Chemical Weathering ?Chemical Weathering can be described as the type of weathering that do take place due to the breaking down of the rock particles into smaller pieces which is usually as a result of chemical process.
It should be noted that when the process is taking place it scould be due to the Extreme heat and pressure which can affect the composition of the particles and as a result of this there could be formation of products from the break down.
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Sandstone experiences heat and pressure and becomes quartzite
Calcium carbonate dissolves
These are both examples of chemical weathering because the composition of these things changed. When shale is worn into small pieces, it is still shale, and rocks breaking into pieces as they tumble down a mountain are both examples of physical weathering because the weathering is not changing the composition of the rock.
what are 5 things that go through photosynthesis? I have: plants, algae, some microorganisms and cyanobacteria
Answers
Explanation:
This process is called photosynthesis and is performed by all plants, algae, and even some microorganisms. To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. for photosynthesis.
Which Item is denser than liquid water?
A. Metal fork
B. Plastic cup
C. Paper plate
D. Wooden spoon
Answers
Answer:
B
Explanation:
metal is denser, wood will float and so will paper and plastic
An alcohol and an ether have the same molecular formula, C2H6O. These two compounds have
A) the same functional group and the same physical and chemical properties
B) the same functional group and different physical and chemical properties
C) different functional groups and the same physical and chemical properties
D) different functional groups and different physical and chemical properties
Answers
Answer:
D. Different functional groups and different physical and chemical properties
Explanation:
A functional group is an atom or group of atoms within a molecule that determines the chemical and physical properties of the compounds it appears in.
The functional group of an alcohol is the -OH group while that of an ether is an oxygen atom bonded to two alkyl or aryl groups, R-O-R'.
Based on the above;
Option A is wrong because they have different functional groups, hence different properties
Option B is wrong because they don't have same functional group even though their properties are different
Option C is wrong because they have different properties even though they have different functional groups
Option D is correct because they have different functional groups and different properties.
Answer:
D
Explanation:
Which equation is balanced?
A) Mg3N2 + H2O 3MgO + 2NH3
B) C3H8 + 5O2 H2O + 3CO2
C) Zn + 2HCl ZnCl2 + H2
D) 3H2SO4 + 2Fe Fe2(SO4)3 + H2
Answers
Answer:
C) Zn + 2HCl → ZnCl2 + H2
Explanation:
Sometimes fossils can be found in sedimentary rocks. Which statement best explains why?
Answers
Answer: ITS A
Explanation: HOPE THIS HELPS
hey can someone help me with this please I have two other ones I need help with also
Answers
Answer:yea
Explanation:
1)156
2)341
3)262
4)3242
5) my friend
Who would most likely need thermal clothing?
A. a tourist on a tropical beach
B. an explorer at the South Pole
C. a dancer performing in a classical ballet
D. a woman attending a religious service
Answers
Answer:
B
Explanation:
Thermal clothing is something you wear under your regular clothing. It prevents you from getting chilly.
A is incorrect because usually a beach is warm and not really that cold. So, you would not need warm clothes.
C is incorrect because a dancer would not be most likely in need for thermal clothing. They would be okay.
D is incorrect because the woman is in a room and not it such a cold room that she would need really warm clothing.
Hope you have a great day;)
Which of the following is the correct order of these inner and outer planets based on their relative temperature, starting with the hottest planet?
Mars, Saturn, Uranus, Venus
Saturn, Uranus, Venus, Mars
Uranus, Venus, Mars, Saturn
Venus, Mars, Saturn, Uranus
Answers
Answer:
Venus, Mars, Saturn, Uranus
(the 4th one)
Explanation:
What are the 4 main types of chemical reactions examples of each
Answers
Synthesis reactions.
Decomposition reactions.
Single-replacement reactions.
Double-replacement reactions
Explanation:
Answer:Type of Reaction General Reaction
Synthesis or Combination A + B → AB
Decomposition or Analysis AB → A + B
Displacement, Replacement, or Substitution A + BC → AC + B
Double displacement, Double replacement, or Metathesis AB + CD → AD + CB
plz answer fast in 3 sentences thx (XOXO) ;) will give brianly
Why is the use of the inquiry process (or scientific method) a practical way to approach science?
1.
2.
3.
Why are scientific theories modified, but seldom discarded?
1.
2.
3.
How has science and technology influenced everyday life?
1.
2.
3.
Answers
Answer:
Explanation:
Why is the use of the inquiry process (or scientific method) a practical way to approach science?
1. The inquiry process is a practical way to approach science because the inquiry process begins by asking questions and moving on from there.
2. In science it is important to investigate phenomena or certain subjects by posing questions that you would like to answer through the scientific method.
3. Therefore, the inquiry method is connected because to inquire on a subject requires raising questions which is an essential step in scientific discovery.
Why are scientific theories modified, but seldom discarded?
1. If a theory cannot explain new evidence or observations then the theory is revised or even thrown
out, but if the theory still explains a wide range of observations and evidence then it is revised
rather than discarded.
2. it will still hold some value as above as you learn more you tweak your hypothesis to fit the ever expanding amount of info and data you collect and assimilate
3. The only way they ever go away is if people stop working on them.
How has science and technology influenced everyday life?
1. computers
2. health care
3. bikes
None of these would exist today without science or technology
Answer:
Explanation:
Why is the use of the inquiry process (or scientific method) a practical way to approach science?1. The inquiry process is a practical way to approach science because the inquiry process begins by asking questions and moving on from there. 2. In science it is important to investigate phenomena or certain subjects by posing questions that you would like to answer through the scientific method.3. Therefore, the inquiry method is connected because to inquire on a subject requires raising questions which is an essential step in scientific discovery.Why are scientific theories modified, but seldom discarded?1. If a theory cannot explain new evidence or observations then the theory is revised or even thrownout, but if the theory still explains a wide range of observations and evidence then it is revisedrather than discarded.2. it will still hold some value as above as you learn more you tweak your hypothesis to fit the ever expanding amount of info and data you collect and assimilate3. The only way they ever go away is if people stop working on them.How has science and technology influenced everyday life?1. computers2. health care3. bikesNone of these would exist today without science or technology
What is subduction?
Answer in your own words, please, and thank you.
Answers
Answer:
Read the explanation for your answer :)
Explanation:
Subduction is the movement of the edge of a plate in Earth's crust into the mantle beneath another plate. PLEASE mark me brainliest, hope this helped! :D
Explain the energy transformations taking place in the diagram above. There are several.
Answers
the fire is evaporating the water
Answer:
chemical energy from the fire is turned into light and heat energy (thats all i can tell there is)
Explanation:
I need help right now lol,So the question is :During high tide, ocean waves often become larger. If the amplitude of a wave increases by a factor of 4, by how much does the energy increase?
Answers
Answer:
1.21 times
Explanation:
The energy of a wave is proportional to the square of the amplitude of the wave.
Mathematically:
e & a²
where
E is the energy of the wave
A is its amplitude
In this problem, the amplitude of the wave increases by a factor of 1.1; it means that the new amplitude can be written as
A=1.1A
Therefore, this means that the energy of the wave increases by a factor:
E' & A'²= (1.1A)² =1.1²A² =1.21A² =
1.21E
Therefore, the energy of the wave increases by a factor 1.21.:
PLSSS HELP ASAP WITH THESE 2 Questions THANK SOOOOOOOOO MUCH FOR THE HELP
Answers
2. abiotic
thank me later :)
Can I get some help plzz
Answers
Answer:
It's row in the table
Explanation:
It is the number of electrons at the outermost shell of an electron eg. The valence electron of sodium is one.
Match each letter with the correct label. Use the atom diagram below.
Electron - Nucleus - Proton - Neutron
Answers
C= protons
B= neutron
A= electron
Answer:
Explanation: First and foremost, we must carefully examine the provided diagram in order to properly name the sections of an atom diagram.
Step-by-step instructions are given along with the answers in sequential sequence.
Correct answer for (A) is Electron since they are present at the outermost shell of an atom.The correct answer for (B) is Neutron since it is the central element of an atom.The proton is the right answer for (C), as it is included in the nucleus grouping with the neutron.The nucleus is the correct option for (D) since it is the primary component of the atom and includes both protons and neutrons.Learn more about the Atom here:
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Do you think a moving skateboard has energy? Why or why not?
PLEASEEEEEE HURRY
Answers
Answer:
"Yes," a moving skateboard has energy.
When the skater seems to be in motion or throughout a movement, the potential energy converts itself into the kinetic form of energy, and then it becomes potential energy again.
Furthermore, somewhere after every movement, the same skateboarder was around a similar height, — in other words thus every time it is equally powerful.
The response is thus the right one.
Explanation:
True or False
Low, gray, layered clouds that cover the sky and bring steady rain are nimbostratus clouds.
Answers
Answer:
true
Explanation:
it indicates a steady rain therefore true
Which →two← factors decrease as the kinetic energy of the particles in an object decreases?
a
The object's weight.
b
The object's temperature.
c
The speed of the particles.
d
The size of the particles.
Answers
Answer:
a and c
Explanation:
I'm only sure on a but c is the second best so Yea don't completely trust it
Deanna stirred a teaspoon of sugar into a glass of warm water. The sugar completely dissolved in the water. Check any statement that is TRUE about the dissolved sugar.
(A) The sugar melts.
(B) The sugar loses mass.
(C) The sugar turns into water molecules.
(D) The sugar forms a mixture with the water.
(E) The sugar can be separated from the water.
(F) The sugar disappears and no longer exists.
(G) The sugar molecules are spread among the water molecules.
(H) The sugar breaks down into the individual atoms that make up sugar.
(I) The sugar chemically combines with the water to form a new substance.
Answers
Answer:
D
Explanation:
From my experience this is what happens when I put sugar in warm water glass
Deanna stirred a teaspoon of sugar into a glass of warm water. The sugar completely dissolved in the water. The statement that is true about the dissolved sugar is the sugar forms a mixture with the water. Therefore, option D is correct.
What do you mean by solubility ?The term solubility is defined as the maximum amount of a substance that will dissolve in a given amount of solvent at a specified temperature.
Temperature, pressure, polarity, and molecular size are all factors that influence solubility. For most solids dissolved in liquid water, solubility increases with temperature. This is due to increased vibration or kinetic energy of the solute molecules at higher temperatures.
Water is known as the "universal solvent" because it dissolves more substances than any other liquid. This is critical for all living things on the planet.
Thus, the dissolved sugar is the sugar forms a mixture with the water, option D is correct.
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The corn crop in an area is prone to infestation by larvae from moths that feed on the cornstalks and ears of corn. The techniques used by two farmers to protect the corn crop are described below.
Technique A: Sprayed his corn crop with an insecticide. The insecticide is known to kill all honeybee, butterfly, and moth larvae.
Technique B: Used a genetically modified variety of corn. The plant produces an insecticide which selectively kills only the moth larvae as it feeds on the corn.
Which technique is likely to have less of an impact on the environment?
Technique B because it may help humans who consume corn to fight bacteria
Technique A because it kills a broader variety of insects to protect the corn
Technique B because it preserves the harmless insects and targets only the moth larvae
Technique A because insecticide use is better for preserving the environment.
Answers
Answer:
Its C
Explanation:
Method A puts a type of spray that kills bees plus butterfly's which would make their population decrease. Which isnt helpful and harms the enviroment a lot. Answer A dosent make sense it may be harmful
Answer: c
Explanation:
I took the quiz
help pls i will give brainlest
Answers
Answer: its 5ft tall and 12 inches
Explanation:
Which statement best describes how energy and matter move in a wave?
A
A wave transports matter without transporting energy.
B
A wave transports energy without transporting matter.
C
Both energy and matter are transported by a wave.
Answers
atoms and molecules are made up of
Answers
Les atomes sont composés de protons, électrons et neutrons.
Which option correctly describes the pattern of valence electrons on the periodic table?
O The number of valence electrons increases from right to left
O The number of valence electrons increases from bottom to top.
O The number of valence electrons increases from top to bottom
O The number of valence electrons increases from left to right.
Answers
Answer:
O The number of valence electrons increases from left to right.
Explanation:
In general, the number of valence electrons is the same within a column/group. When the group number increases, the # of valence electrons also increases.
The option correctly describes the pattern of valence electrons on the periodic table is the number of valence electrons increases from left to right. Thus, option D is correct.
What is atomic mass?In universe every particle have some mass associated with it whether it is small or large. According to Dalton's theory of atomic structure every particle is made up of with atoms. The average mass of atomic particle is called as atomic mass. This is commonly calculated as per international agreement in terms of a unified atomic mass (amu).
It can also be defined as 1/12 of the mass of a carbon atom-12 in its ground state. The mass of atom can also be calculated as the mass of protons and neutrons which almost equal to atomic mass. This small change is due to the binding energy mass loss.
Calculation:-
As per given above question:-
99% H-1
0.8% H-2
0.2% H-3
So,
Atomic mass = (99x1 + 0.8x2 + 0.2x3)÷100%
Atomic mass = 1 amu,
Therefore, The option correctly describes the pattern of valence electrons on the periodic table is the number of valence electrons increases from left to right. Thus, option D is correct.
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Please help me por favor :'(
Answers
Which diagram represents an electrically neutral atom?
Answers
Answer:
D
Explanation:
I hope this right, I'm sorry if it's not.
For an atom to be neutral, it has to have the same amount of protons and electrons. Because protons and electrons have opposite charges, when there is an equal amount of them they balance each other out
The diagram that represents an electrically neutral atom is:
Option D
What is an electrically neutral atom?Whenever a molecule has an equivalent number of electrons and protons, it has an equivalent number of -ve electric charges (the electrons) and +ve electric charges (the protons). The all-out electric charge of the 0 is thusly zero and the particle is supposed to be unbiased.
Thus, option D is correct.
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