Which changes MUST happen for elements to become a compound

Answers

Answer 1

Answer:

Chemical changes in compounds happen when chemical bonds are created or destroyed. Then the molecular structure changes; new molecules form and a new substance is created. Often heat is used to begin a chemical change, as when baking a cake. Another example of a chemical reaction is the rusting of a metal trash can.

Hope this helps you Do mark as brainliest ✌️
Answer 2

An element is constituted of only atoms and no other entities are present in it. Whereas a chemical compound is a substance made up of various identical molecules of the same or different atoms.

The atoms of the same or different species bond together to form a compound.

Chemical bonding is present among them that cannot be simply separated.

The compounds can have ionic, covalent and hydrogen bonds present in them.

When the new atoms combine the structure changes of the new molecule formed.

To learn more about compounds and atoms follow the link:

https://brainly.com/question/2481039


Related Questions

What’s it called when a sound wave is slowed down by a new medium?

Answers

Answer:

Refraction of waves involves a change in the direction of waves as they pass from one medium to another. ... Sound waves travel slower in cooler air than they do in warmer air.

Explanation:

What would be the temperature as well as pressure inside and outside of a can if it were to be placed in cold water?

Answers

Answer:

The hot gas molecules are the same pressure as the air outside the can. When the can is placed in cold water upside down, the hot gas water molecules are cooled very rapidly. ... Since the air pressure outside the can is stronger than that inside the can, it causes the can to collapse.

Explanation:

9) Which must be a mixture of substances?

A) solid
B) liquid
C) gas
D) solution

Answers

Answer:

D

Explanation:

A field produced by a magnetic object that exerts a force on other magnetic materials or moving electrical charges is called alan a Magnetic field b Electric field Electrostatic field d All of the above​

Answers

Answer: magnetic field

A field produced by a magnetic object that exerts a force on other magnetic materials or moving electrical charges is called a Magnetic field.

What is a magnetic field?

The magnetic subject is the region around a magnet in which the effect of magnetism is felt. We use the magnetic area as a device to describe how the magnetic force is shipped inside the area around and inside something magnetic in nature.

Why magnetic area is important?

The magnetic area is extremely critical to maintaining lifestyles in the world. without it, we'd be exposed to excessive amounts of radiation from the solar, and our environment would be unfastened to leak into space.

Learn more about the magnetic fields here: https://brainly.com/question/7802337

#SPJ2

Your advisor has given you a tube of GMP that has been sitting in the freezer for many years and wants to know the concentration. There is one problem: the spectrophotometer in the lab has been 'optimized' for use with proteins and only measures at 280 nm. You decide to give it a try. After getting and absorbance reading of 0.2, what is the concentration of GMP in the tube (assuming a 1 cm path length).

Answers

Answer:

2.22 × 10^-5M

Explanation:

From Beer-Lambert's law;

A=εcl

Where A = absorbance of GMP= 0.2

ε= molar extinction coefficient of GMP = 9000 M-1cm-1

c= concentration of GMP= the unknown

l= path length = 1 cm

c= A/εl = 0.2/ 9000 M-1cm-1 × 1 cm

c= 2.22 × 10^-5M

in addition to Earthquake, hurricane, which of the following could be categorized as a "disaster" risk?

Answers

Answer:

I think its a World War.

Explanation:

This is just what my sister told me, since the cost for the war could make a country poor and the damage it could cause could lead a country to disaster.

i think d answer is tsunami


When an atom is trying to obtain stability, what part(s) of the atom change(s)?

Answers

It gains stability by gaining/losing electrons

Which of the following contribute(s) to most of the mass of an atom?
Question 6 options:

A)

Neutrons only

B)

Protons and neutrons

C)

Protons and electrons

D)

Protons only
Question 7 (5 points)
In a certain chemical reaction, the bonds of the products contain more energy than the bonds of the reactants. For the reaction to occur, which of the following best describes what occurred?
Question 7 options:

A)

Energy was released, so the reaction is endothermic.

B)

Energy was released, so the reaction is exothermic.

C)

Energy was added, so the reaction is endothermic.

D)

Energy was added, so the reaction is exothermic
Question 8 (5 points)
A solution
Question 8 options:

A)

is a single-phase homogeneous mixture.

B)

must contain water.

C)

is always a liquid.

D)

can contain more than two phases.
Question 9 (5 points)
Which of the following is true of alloys?
Question 9 options:

A)

They can only be composed of metals.

B)

They must be held together by chemical bonds.

C)

They're liquid solutions.

D)

They must contain a metal.
Question 10 (5 points)
Which of the following best describes an atomic number? An element's identity is defined by its atomic number; this means it represents the number of
Question 10 options:

A)

electrons in the element.

B)

neutrons in its nucleus.

C)

protons plus neutrons in its nucleus.

D)

protons in its nucleus.

Answers

Answer:

1.

B) protons and newtrons

2.

D)

3.

C)

4.

A)

Rank lead, phosphorus, and barium in order of increasing ionization energy.
A) Pb < P < Ba
B) Ba < P < Pb
C) Pb < Ba < P
D) Ba < Pb < P

Answers

Answer:

D) Ba < Pb < P

Explanation:

Barium (Ba): 5,2117

Lead (Pb): 7,4167

Phosphorus (P): 10,4867

Increasing order of ionization energy:

Ba < Pb < P

Electronic configurations of given elements

Pb: [Xe] 6s² 4f¹⁴ 5d¹⁰ 6p²

P:   [Ne] 3s² 3p³

Ba: [Xe] 6s²

All the given elements have stable half-filled subshells. But phosphorus has the smallest atomic size among them, so it will have the lowest tendency to remove an electron from its valence shell and hence will require the highest amount of ionization energy.  Barium has a higher atomic size than lead, therefore it has lower ionization energy than lead.

How are ionization energy and atomic size related?The force of attraction is stronger when the electron is closer to the nucleus, and as a result, more energy is needed to overcome this attraction and remove the electron.Therefore, the ionization energy increases with decreasing radius and vice versa.

Learn more about trends of ionization energy here:

https://brainly.com/question/6842791

#SPJ2

Which element has an outer(ending) electron configuration of s2p4?

Answers

The question is in complete, the complete question is:

Which element has an outer electron configuration of s 2 p4 ?

(A) Ca (B) Cr (C) Ge (D) Se

Answer:

(D) Se

Explanation:

The outer electronic configuration of an atom reflects the group to which it belongs in the periodic table. Each group has its unique outermost electron configuration and number of electrons found in the outermost shell of the atoms of elements in the group.

s 2 p4  is the unique outermost electron configuration of group 16 elements. Group 16 elements have six electrons in their outermost shell. If we consider the options, only Se is a member of group 16. Hence it is only Se that has the outermost electron configuration s 2 p4 .

An element which has an outer (ending) electron configuration of [tex]s^2p^4[/tex] is: Oxygen.

Electron configuration can be defined as a formula that is used to denote the distribution of the atoms of a chemical element in an atomic orbital.

Basically, electron configuration uses four (4) main letters to illustrate the distribution of atoms in an atomic orbital:

spdf

The electron configuration of [tex]s^2p^4[/tex] indicates that the chemical element is in Group 6 and has six (6) electrons in its outermost shell.

Hence, a chemical element such as Oxygen (O) or Selenium (Sn) in Group 6 of the periodic table would have an electron configuration of [tex]s^2p^4[/tex].

Read more: https://brainly.com/question/18214726

What does the name "atom" mean in
Greek?

Answers

It means indivisible

Answer:

The Greek root of atom is atomos, which means "indivisible," since the scientists who first gave the atom its name imagined it couldn't be split or divided into smaller pieces.

Explanation:

What formations are created by sand deposition by waves?

Cirques
Dunes
Horns
Spits

Answers

Answer:

Spits

Explanation:

Deposit by waves include beaches. They may shift along the shoreline due to longshore drift. Other wave deposits are spits, sandbars and barrier islands

Answer: D

Explanation:

At what time was the frog sitting still or at rest

Answers

Answer:

What are the times and is that your question?

Explanation:

Which of the following situations best describes an ionic bond?
Two atoms each give up an electron, and an electrostatic force attracts them.
One atom gains an electron while the other atom loses an electron, and an
electrostatic force attracts them.
One atom gains an electron while the other atom loses an electron, and an
electrostatic force repels them.
Two atoms gain electrons and an electrostatic force attracts them.

Answers

One atom gains an electron while the other atom loses an electron and a electrostatic force attracts them.

The situation which best describes the ionic bond is “ One atom gains an electron while the other atom loses an electron, and an electrostatic force attracts them”.

What is an ionic bond?

An ionic bond is formed between two atoms by donating an electron from the electropositive atom and withdrawal of that electron by the second atom which is electronegative and thereby attaining stability by making their valency completed.

The electron loss-gain interaction make an electrostatic force of attraction between them, where the electrons from the electropositive atom is attracted towards the electronegative atom.

Thus the two atoms are bound together by the electrostatic force of attraction created by the electron donation. Hence, option b is correct.

To learn more about ionic bonding refer the link below;

https://brainly.com/question/12663276

#SPJ2

18. Which two particle diagrams each represent a sample of one substance? Key O = atom of oxygen = atom of hydrogen 0 = atom of chlorine 8 OO 1 நம் மும் 20 2000 (1) I and III (3) II and IV (2) II and III (4) I and II​

Answers

Answer:

1 and 11

Explanation:

Answer:1 and 11

Explanation:

what is the name of CH3CH2CH2C(O)CH2CH3

Answers

Answer:

1-methoxypropane

Explanation:

A solution that holds more solute than it normally can under the conditions at a given temperature is _____. supersaturated unsaturated saturated diluted

Answers

Answer:

Supersaturated !

Explanation:

How would I create a Lewis dot structure with the compound: CHBr2Cl

Answers

there is a lewis dot calculator on google if that helps

Answer:

Step 1: Find the Total Number of Valence Electrons. ...

Step 2: Find the Number of Electrons Needed to Make the Atoms "Happy" ...

Step 3: Determine the Number of Bonds in the Molecule. ...

Step 4: Choose a Central Atom. ...

Step 5: Draw a Skeletal Structure. ...

Step 6: Place Electrons Around Outside Ato

Explanation:

Why can stars be called element factories?

Answers

Answer:

They came from the element factories we call stars. Stars are mostly hydrogen throughout most of their lifespans. They are driven by massive and continuous thermonuclear reactions and gravity. ... This extra heat begins to fuse helium atoms into heavier elements like carbon and oxygen and gives new life to the star.

Explanation:

Nearly all elements heavier than hydrogen were not created by the Big Bang. They came from the element factories we call stars. ... This extra heat begins to fuse helium atoms into heavier elements like carbon and oxygen and gives new life to the star. BTW I GOT THIS FROM SAFARI :)

Radio waves are examples of electromagnetic waves. T or F

Answers

Answer:

the answer is true

Explanation:

Question 1 of 10 What is molarity a measurement of? O A. The volume of liquid containing a dissolved substance B. The grams of a substance dissolved in a liquid O c. The concentration of a substance dissolved in a liquid O D. The number of moles of a dissolved substance

Answers

To do this measure called molarity is commonly used. Molarity (M) is defined as the number of moles of solute (n) divided by the volume (V) of the solution in liters. It is important to note that the molarity is defined as moles of solute per liter of solution, not moles of solute per liter of solvent.                    

so the answer is D.

hope this helps have a great day....!

According to the concept of molar concentration, molarity is  defined as the number of moles of a dissolved substance.

What is molar concentration?

Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.

The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.

In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.

Learn more about molar concentration,here:

https://brainly.com/question/21841645

#SPJ5

How is the term stable used in the text?

Answers

Answer:

When something is stable, it's fixed and steady. If you needed advice, you'd probably go to your most stable friend, the one least likely to act crazy or be easily upset.

Explanation:

Whether you're talking about an object or a person, the adjective stable implies reliability and strength. You can describe a government as stable, or a relationship, or a desk. A completely different meaning of stable is the noun "building used for housing horses or other animals." Both senses of the word come from the Latin stabilis, "firm or steadfast."

Is it true or false that the Temperature is a direct measurement of the energy stored in a substance?

Answers

False, Temperature is a physical quantity that expresses hot and cold

What would happen if I throw nail polish remover into the fireplace

Answers

Answer:

Your house could catch fire because while Nail Polish Remover itself isn't particularly flammable, the vapors it gives off are. Because of this, sparks could occur if nail polish is used near open flame or was tossed in, and then the sparks could catch onto something else and grow. I would not recommend trying this.

Explanation:

Which of the following is the BEST description of our atmosphere?

It dissolves meteors and protects us from ultraviolet radiation.

It’s made of a mixture of gases that protect Earth and help create conditions that allow life to live here.

It’s made of nitrogen and oxygen.

It contains a mixture of gases.

Answers

Answer:

I think the answer is B.

Answer:

B

Explanation:

Other things like A, C, and D are not the best explanation because they are all simple senteces.

What are the four main types of tissues in the human body?

epithelial

dermal

vascular

connective

muscle

nervous

Answers

Answer:

epithelium, muscle, connective tissue and nervous tissue.

Explanation:

Explanation:

Epithelial

Connective

Muscle

Nervous

if two successive terms of the fibonacci sequence are both odd, is the next term is even or odd? why?​

Answers

Answer:

Even because you always add the previous two terms in the sequence. Since they are both odd, the next term will be even. (odd+odd = even)

Explanation:

The process during which a substance changes from a solid directly to a gas without becoming a liquid is known as: Example(dry ice)

A)
condensation.
B)
fusion.
C)
melting.
D)
sublimation.

Answers

The answer is sublimation

In models of molecules, spheres of different colors and
sizes represent different types of atoms.
Which model shows a molecule of a substance that is made up of three
elements?

A
B
C
Or
D ?

Answers

Answer:

D

Explanation:

According to this question, each model of molecules in the options contains spheres of different colors and sizes representing different types of atoms. The atoms of the same element are the spheres of same color and size while atoms of different element are of different color or size.

Therefore, the model showing a molecule of a substance that is made up of three elements is model D because it is made up of three distinct spheres representing atoms of each element.

- The red sphere is the atom of the first element

- The big dark sphere is the atom of the second element

- The small white sphere is the atom of the third element

Answer:

D

Explanation:

what is the hybridization of NO2​

Answers

Answer: Explanation:

If we apply the hybridization rule then it states that if the sum of the number of sigma bonds, lone pair of electrons and odd electrons is equal to three then the hybridization is sp2.

Other Questions
Which of the following people would NOT be able to run for president under the Constitution?.O A a 37-year-old black womanthe governor of Hawall, born in Japan. an 80-year-old man with only an elementary school educationOD. all would be eligible what is marketing information system Did Christopher Columbus get arrested for stealing gold from the Native Americans? Explain how president Roosevelts relationship with John Muir affected the presidents view on the importance of preserving land. Which of the following results in the expression 0.22 x 86? SVE ME PLZ What is the activation energy of a reaction? Who had a successful trading post and had a lot to gain by trading with the Natives and the English? what is resistance in a circuit when the current is 0.5 ampere 4) f(x) = 2x^5+4x^4+11x^3+22x+12x+24; -2 please show the steps on how to find the roots Find the slope and y can someone help me answer this? i dont get it and I need help before the next 30 minutes. ill give a brainiest to whoever helps me tyyy :) Please help me this is part of my grade and its really important! Im very serious i dont want people answering nothing for points- i really need help. PLEASE give me right answers :( The questions are on the pictures ( Im sorry there are so much pictures I couldnt make the page smaller) :( Select the correct answer.Why did the US government build an interstate highway system in the 1950s?A. to rapidly transport troops in times of warB. to urge people to conserve oilC. to help improve railroad networksD. to aid automobile manufacturers How does the repetition of s and sh sounds in "strikes with a shivering shock" in "Inchcape Rock" influence the poem? 3x - 2y = 38x = 6 - yChoose a solving method to find the solution(if possible provide explanation I do not understand this!) Luisa ate 3 ounces of pretzels.The pretzels she ate contained grams of protein. original amount : 30, new amount : 45 what is the percent change guys can u help me put the answers with the graphs i will give 20 points 4. Which expression is equivalent to x 2+ 5x 24? (1) (x + 3)(x 8) (3) (x 3)(x + 8) (2) (x 2)(x + 12) (4) (x + 2)(x 12)