Which statement is true about oxygen and rocks?

A) Both are mixtures.
B) Both are pure substances.
C)Oxygen is a mixture and a rock is a pure substance.
D)Oxygen is a pure substance and rocks are mixtures.

Answers

Answer 1

Answer: both are mixtures , Brainliest please

Explanation:

Answer 2

Answer:

C) is the correct answer


Related Questions

what are homologous series

Answers

Answer :


A homologous series is a family of hydrocarbons with similar chemical properties who share the same general formula. We will look at three hydrocarbon series: alkanes, alkenes and the cycloalkanes. Hydrocarbons are compounds that contain only hydrogen and carbon.



Answer:

A homologous series is a series of compounds with the same general formula, usually varying by a single parameter such as the length of a carbon chain. Compounds within a homologous series typically have a fixed set of functional groups that gives them similar chemical and physical properties.

Which of the following changes the solid Earth the most?Metamorphic rocks are formed when sedimentary or igneous rocks are subjected to heat or pressure and recrystallize without melting. Which of the following rocks results from the metamorphism of limestone?

Answers

Answer:

The metamorphism of limestone results in the formation of marble

Explanation:

how to make slime without borax or contact solution

Answers

Answer:

lysol and glue pretty simple.

Explanation:

Answer:

glue, and some laundry detergent.

Explanation:

only some laundry detergents work.

for a butter slime all you need is Elmer's wood glue, and gel shaving foam it makes a thick butter like consistency slime.

if you want to get fancy you can add a drop of food coloring and sparkles. these work good for me, you should give them a try. thank you and have a great day! if you like my answer please mark brailyist thanks again. if you have any questions please feel free to ask me! thanks again.

when the orbitals or energy levels of an atom are full, it is considered to be stable. which atom in the ground state has a stable electron configuration?

Answers

Answer:

Noble gases, atoms which have complete filled outer orbits.

Explanation:

SInce, you have given no options elements like Neon, Helium,etc

Noble elements are the atoms which have stable electronic configuration in the ground state.

What is electronic configuration?

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state  and hence are said to be stable.

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bp’s efforts to close the blowout preventer and install a containment dome following an explosion on the deepwater horizon drilling rig is an example of ________ change.

Answers

The British Petroleum (bp's) effort to close the blowout preventer and install a containment dome following an explosion on the deepwater horizon drilling rig is an example of regulatory policy change.

The deepwater horizon drilling rig is a semi-submersible, transportable, floating, flexibly oriented drilling rig that could work in sea depths of up to 10,000 feet which is approximately 3,000 meters.

During the explosion that occurred in April 2010, British Petroleum made several efforts to contain the damages made and to prevent further outbreaks of disasters.

Part of the changes was shifting from a blowout preventer that has a specialized valve to seal, manage, and monitor oil and gas wells in order to prevent blowouts to a containment dome (a crucial component of a system meant to control an oil well's underwater blowout).

Therefore, we can conclude that the British Petroleum (bp's) effort to close the blowout preventer and install a containment dome following an explosion on the deepwater horizon drilling rig is an example of regulatory policy change.

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Someone pls help me I will make you brain

Answers

Answer:

The answer is steam of fossil fuels

Which statement describes a similarity between an apple and gasoline

Answers

Answer:

They both contain chemical energy, which people and cars convert into mechanical energy.

Explanation:

Answer:

B)They both contain chemical energy, which people and cars convert into electrical energy.

Explanation:

how many atoms are there in 1.25 moles of Zn?

Answers

Answer:

7.53×10^23

Explanation:

i dont know how

Answer:

There are 6.25×10²³ atoms in 1.25 moles of Zn

What does wind cause weathering?

A) when cannot cause the weathering of rocks.

B) Wind can blow sand and create new landforms.

C) Wind picks up sand or dry soil
And carries it from one place to another

D) Blowing sand can wear away a rocks surface and break it into smaller pieces

Answers

Answer:

D

Explanation:

The blowing sand chips away at the rocks and, over time, the rocks start getting smaller, due to the weathering.

Answer:

Wind picks up sand or dry soil

And carries it from one place to another

Explanation:

relative to electrons and electron states, what does each of the four quantum numbers specify

Answers

Answer:

(n, l, m sub l, m sub s)

N: principle quantum number (1,2,3,4,etc)

l: angular momentum quantum number, the shape (l has to be at least 1 less than n, but can be 0 depending on n)

M sub l: magnetic quantum number (l determines this number)

M sub s: spin quantum number (can only ever be 1/2 or -1/2)

Explanation:

The principle, azimuthal, magnetic, and spin quantum numbers specify the principle shell, the shape of the orbital, the number of orbitals, and electron spin respectively.

What are the quantum numbers?

The set of numbers that describes the position and energy of the electron are called quantum numbers. Four quantum numbers are principal, azimuthal, magnetic, and spin quantum numbers.

Principal quantum numbers (n) designate the principal electron shell of the atom and the most probable distance between the nucleus and the electrons. A larger value of the principal quantum number indicates a large distance between the electron and the nucleus.

The azimuthal quantum number (l) describes the shape of an orbital in which an electron is present. Its value is equal to the total number of angular nodes in that orbital.

The magnetic quantum number describes the total number of orbitals in a subshell and the orientation of these orbitals.  The value of the spin quantum number (s) offers the direction in which the electron is spinning and it has only two possible values +½ and -½.

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NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:  C) 1s²2s²2p⁶

Explanation:

A noble gas has 8 electrons between the p and s orbitals of the outer shell. Helium is the exception because it only has two electrons.

                      ∴  1s²2s²2p⁶ is the noble gas (neon)

Although almost 80% of the atmosphere is made up of nitrogen gas, most living things
don't have the enzymes necessary to use nitrogen directly from the atmosphere. How
we obtain the nitrogen we need to make proteins and DNA if we can't obtain it from
breathing?

Answers

Answer:

We don’t have the enzymes necessary to remove nitrogen from the atmosphere; we get our nitrogen from the food we eat. ^^

Although almost 80% of the atmosphere is made up of nitrogen gas, most living things don't have the enzymes necessary to use nitrogen directly from the atmosphere. We obtain the nitrogen we need to make proteins and DNA, if we can't obtain it from breathing we can get it by eating organic plants and animals.

Why is Nitrogen important for humans?

Nitrogen is a key element in the nucleic acids DNA and RNA, which are the most important of all biological molecules and crucial for all living things. DNA carries the genetic information, which means the instructions for how to make up a life form.

It is used to make amino acids in our body which in turn make proteins. The human body comprises 3% nitrogen (by mass). It is an essential part of amino acids (makeup proteins), nucleic acids (DNA, RNA), ATP (energy molecule), etc. It is nearly impossible to live without nitrogen.

Therefore, Although almost 80% of the atmosphere is made up of nitrogen gas, most living things don't have the enzymes necessary to use nitrogen directly from the atmosphere. We obtain the nitrogen we need to make proteins and DNA, if we can't obtain it from breathing we can get it by eating organic plants and animals.

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Describe what does happen to the electrons when metal atoms are bonded together.

Answers

Answer: In metallic bonds, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize. That is to say, instead of orbiting their respective metal atoms, they form a “sea” of electrons that surrounds the positively charged atomic nuclei of the interacting metal ions. Metals are shiny.

Explanation: Hope this helped!

Why is it important for scientists to use the scientific method?
A. Scientists would not ask questions if the scientific method were
not used.
B. Experiments would not produce any data without the scientific
method.
C. The scientific method helps scientists get accurate, repeatable
results,
D. Using the scientific method means that the results will support the
hypothesis

Answers

Explanation:

It provides an objective, standardized approach to conducting experiments and, in doing so, improves their results. By using a standardized approach in their investigations, scientists can feel confident that they will stick to the facts and limit the influence of personal, preconceived notions.

I hope this helps you out!

CAN SOMEONE HELP ME TO MY HOMEWORK I GIVE BRAINLIEST PLEASE

direction: LABELS EACH LAYERS USING NUMBER TO SHOW AGE OF ROCKS 1 AS THE OLDEST AND 6 IS TUE YOUNGEST PUT THE NUMBER ON THE CIRCLE PROVIDED IN EACH LAYER​

Answers

I believe this is correct! :D

Give 3 physical properties common to most metals

Answers

Answer:

What are you a 6 yo? Anyways, the most common properties are, They are good conductors of electricity, They are lustrous and They are sonorous.

Which are proteins that recognize specific proteins on bacteria a.antibodies b.enzymes c.nutrients d.receptors

Answers

Answer:

A

Explanation:

Answer:

A. antibodies

Explanation:

Why do humans have a tailbone? What could it tell us about our past?

Answers

Answer:

Monkey have tail we come from monkey

Answer:

The coccyx, or tailbone, is the remnant of a lost tail. ... The coccyx serves as an attachment site for tendons, ligaments, and muscles.  Tailbones helped our ancestors with mobility and balance

Explanation:

which of the following statement is correct for a group of a periodic table.

i} All elements have different valency.

ii} The atomic size decrease as we move down.

iii} The electropositivity increase down the group.

iv} The electronegativity increase down the group. ​

Answers

Answer:

I believe it is B

Explanation:

I am on this lesson too :)

Answer:

III  Electropositivity increases down the group

Explanation:

what is the physical state of gold at room temperature

Answers

Answer:

solid

Explanation:

gold is relatively unreactive and exists as a solid at room temperature

It is found as a solid in gold mines, and in gold nuggets in river beds

which scientist also arranged the elements by increasing atomic mass and used the pattern to predict the existence of elements yet to be discovered?

Answers

Wait hold up yaaa I flex on my ex every time I leave

What is the source of the full spectrum of UV radiation?

Answers

Answer:

Here's ur answer

Explanation:

1s22s22p63s23p64s23d104p65s24d105p66s24f145d106p2

Answers

Answer:

batqyqy6w

Explanation:

We may suspend accounts that violate the Brainly Code of Conduct. Look for a follow-up email.  

A sample of an unknown solid is found to have a volume of 24.3 cm3 and a mass of
217.0 grams. What is the density of the unknown

Answers

Answer:  8.93 g/cm³

Explanation:

Density = mass ÷ volume

            = 217.0 g ÷ 24.3 cm³

            = 8.93 g/cm³

∴ the unknown sample of mass 217.0 grams and volume of 24.3 cm³ has a density of 8.93 g/cm³.

Briefly discuss the 3 most important properties of metals

Answers

Answer: Luster: Metals are shiny when cut, scratched, or polished.

Malleability: Metals are strong but malleable, which means that they can be easily bent or shaped.

Conductivity: Metals are excellent conductors of electricity and heat.

Explanation: Hope this helped!

can you make hydroxychloroquine from grapefruit and lemon rinds

Answers

Hydroxychloroquine cannot be made from grapefruit and lemon rinds.

Hydroxychloroquine is not a natural compound, rather it can only be synthesized from quinoline molecule in the laboratories.

During the synthesis of hydroxychloroquine, several sequential chemical reactions and purifications are done.

Hydroxychloroquine is used in the treatment of:

malariasystemic lupus erythematosus, rheumatoid arthritis

But when grapefruit and lemon rinds are boiled in water, a natural chemical compound known as limonene is obtained.

Therefore, hydroxychloroquine cannot be made from grapefruit and lemon rinds,

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can somebody please helpppp???

Answers

Answer:

aluminum is highly reactive

Answer:

Aluminum is highly reactive

Explanation:

Chemical property is defined as the property in which chemical composition of the substance changes.

For example, reactivity, oxidation state, inflammability etc are all chemical properties.

Therefore, we can conclude that out of the given options, Aluminum is highly reactive depict a chemical property of aluminum.

A student makes two mixtures, both made of the same substances. What must be true of the two mixtures? A Both mixtures have the same density. B Both mixtures have the same temperature. C Both mixtures can be physically separated into its components. D Both mixtures are physically combined in the same proportions.

Answers

A student makes two mixtures, both made of the same substances. Both mixtures can be physically separated into its components. Therefore, option C is correct.

What is mixture ?

A substance made up of two or more separate chemical compounds that are not chemically linked is referred to as a mixture. A mixture is the physical blending of two or more substances while maintaining their distinct identities. It can take the form of solutions or suspensions.

A pure substance is a single sort of matter that cannot be divided into other kinds of matter by any physical methods. A pure substance has a known and consistent composition at all times.

When two or more distinct substances physically join, a mixture is produced that can be dispersed back into its constituent parts. When two or more compounds combine to create a new substance that cannot be broken down into its constituent parts, a chemical reaction takes place.

Thus, option C is correct.

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Help me Plz, I am really confused

Answers

O is a blood donor
AB receiver

How does the law of conservation of mass apply to this reaction:Mg + 2HCl → H2 + MgCl2?

Answers

The law of conservation of mass applies to every reaction. In this case, you start with 1 Mg, 2 H, and 2CL and end up with the same five only their bonds have been rearranged, or in other words, they are joined up differently.

Answer:

The law of conservation of mass has already been applied. There is an equal number of each element on both sides of the equation.

Explanation:

Have a Blessed Day

I hope I helped

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