What do we know about the arrangement of atoms during a chemical reaction?

Answers

Answer 1

Answer: In a chemical reaction, the atoms and molecules that interact with each other are called reactants. ... No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

Explanation:

Answer 2

Answer: In a chemical reaction, the atoms and molecules that interact with each other are called reactants. ... No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

Explanation: Hope this helped! :)


Related Questions

What is the solution to the problem expressed to the correct number of significant figures?
7.21= ?
A. 1.688
OB.
1.69
O C.
1.7:
OD
1.70

Answers

Answer:

(102 900 ÷ 12) + (170 × 1.27) = 8800

Step 1. Evaluate the expressions inside the parentheses (PEMDAS)

102 900 ÷ 12 = 8575

170 × 1.27 = 215.9

In multiplication and division problems, your answer can have no more significant figures than the number with the fewest significant figures.

Thus, the underlined digits are not significant, but we keep them in our calculator to avoid roundoff error.

Step 2. Do the addition (PEMDAS).

  8575

+    215.9

= 8790.9

Everything that you add to an insignificant digit gives an insignificant digit as an answer.

Thus, the underlined digits are not significant.

We must drop them and round up the answer to 8800.

Explanation:

What is the molarity of a solution that contains 3.66 mol KCl in 7.98 L solution?

Answers

Answer:

.4586M

Explanation:

It's simple, just devide the mol value by the volume value. So 3.66mol/7.98L=.4586M

how would I solve this problem?

Answers

Answer:

D

Explanation:

The goal in this set up is to make sure all units cancel each other.

Since we need to go from grams to atoms, our final unit should be atoms.

Using method of elimination, let's see why other options are wrong.

A - Although 'g' is cancelled out, we are left with moles^2 / atoms

B - Although 'g' is cancelled out, we are left with moles^2 / atoms

C - Although 'mol' is cancelled out, we are left with g^2 / atoms

If a star is 300 light years away from Earth, how long does it take light from that star to reach Earth?
A. 300 days
B. 300 hours
C. 300 years
D. 300 light years

Answers

It would take 300 light years to reach Earth

When magnesium reacts with sulfuric acid the products are magnesium sulfate and hydrogen. If there are 15 grams of magnesium at the start of the reaction, how much magnesium will be present in the magnesium sulfate

Answers

Answer: 15 grams of magnesium will be present in the magnesium sulfate

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side.

The balanced chemical reaction is:

[tex]Mg+H_2SO_4\rightarrow MgSO_4+H_2[/tex]

As the mass remains conserved at the end of the reaction, there will be 15 grams of Magnesium in magnesium sulphate.

As the moon orbits the ______________, its gravitational pull is______________ on the side of the earth closest to the ______________.This ______________ force pulls on the water facing the moon,creating a ______________. The moon also ______________ on the solidearth, causing the water on the far side of earth to ______________as well. These bulges in the water are the ______________.The areas in between the close and far side of the earth which are not in ______________ with the moon experience ______________.


pls help i give brainlyest

Answers

Answer:

Earth

Strongest

Moon

Gravitational

Tide

Pulls

Bulge

Waves

Proximity

Low Tide

What volume will 3.50 mol of ammonia gas occupy at conditions of standard temperature and pressure?

Answers

Answer:

Q:

What volume will 3.50 mol of Xe gas occupy at STP?

A:

78.4 L

Explanation:

The volume occupied by 3.5 moles of ammonia gas at standard temperature and pressure (STP) is 78.45 L

Data obtained from the question Number of mole (n) = 3.5 moles Pressure (P) = STP = 1 atm Temperature (T) = STP = 273 KGas constant (R) = 0.0821 atm.L/Kmol Volume (V) =?

How to determine the volume

The volume of the gas at standard temperature and pressure (STP) can be obtained by using the ideal gas equation as illustrated below:

PV = nRT

1 × V = 3.5 × 0.0821 × 273

V = 78.45 L

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MORE THEN ONE ANSWER Factors affecting energy transfer

Lesson 2.14-2.15

Question 9 options:

Wind moving over a relatively flat water surface has less area to come in contact with the water, and this reduces energy transfer.


Larger waves have extra spaces and areas to trap air, increasing the transfer of the wind's energy to the water.


Wind moving over a relatively flat water surface has GREATER area to come in contact with the water, and this INCREASES energy transfer.


SMALLER waves have extra spaces and areas to trap air, increasing the transfer of the wind's energy to the water.

Answers

Answer:

1.) Wind moving over a relatively flat water surface has less area to come in contact with the water, and this reduces energy transfer.

2.) Larger waves have extra spaces and areas to trap air, increasing the transfer of the wind's energy to the water.

Explanation:

I got it right on the test.

Wind moving over a relatively flat water surface has less area to come in contact with the water, and this reduces energy transfer and Larger waves have extra spaces and areas to trap air, increasing the transfer of the wind's energy to the water.

What is energy transfer?

When energy of any body travels from the one body to the another body, then transfer of energy takes place.

In the oceans, winds transfer their energy to the ocean or to the sea by the interaction with the surface water. When on the surface of ocean or sea up and down movement of water occurs then the interaction of that water with wind takes place and transfer of energy from wind to sea happen. More roughness or more height of the water on the surface of sea observed ten more transfer of energy from wind to sea occur.

Hence, option (1) & (2) is correct i.e. wind moving over a relatively flat water surface reduces energy transfer and Larger waves increasing the transfer of the wind's energy to the water.

To know more about energy transfer, visit the below link:

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I’ll really appreciate it if you help me out on these 2 questions.

Answers

Answer:

13. A

14. C

Explanation: i tried my best

HELPP!!
in reaction 3Fe+2O2=Fe3O4 if I add 20g of Fe to my solution how many moles of Fe3O4 will produce???

Answers

Answer:

0.119 moles

Explanation:

molar mass of Fe = 55.845g

to find moles = mass/ molar mass

so moles of Fe = 20/55.845

= 0.358 moles

for the equation you are given

for every three Fe, it produces 1 Fe3O4 , meaning the ratio is 3:1

if you have 0.358 moles of Fe, that means the number of moles of Fe3O4  will equal to one third of that,

thus

moles of Fe3O4 = 1/3 x 0.358 = 0.119

what is a salient factor?

Answers

Answer:

technology is a silent factor

Explanation:

learned about it in computer class.

Can someone pls help me with this its due in 20 minutes.

Answers

Answer:

15. The velocity of a sound wave is affected by two properties of matter: the elastic properties and density.

16. The greater the density of a medium, the slower the speed of sound. This observation is analogous to the fact that the frequency of a simple harmonic motion is inversely proportional to m, the mass of the oscillating object.

17. Temp °C 0 m/s2 m/s

50 360.51 361.62

18. Molecules at higher temperatures have more energy, thus they can vibrate faster. Since the molecules vibrate faster, sound waves can travel more quickly. The speed of sound in room temperature air is 346 meters per second. ... The speed of sound is also affected by other factors such as humidity and air pressure.

(Help would be greatly appreciated) What is the molarity of a solution which contains 22.41 grams of NaCl in 50.0 mL of solution?
1. 0.488M
2. 7.67mol
3. 7.67M
4. 0.000767M

Answers

Answer:

7.67

Explanation:

According to molar concentration, the molarity of solution which contains 22.41 grams of NaCl in 50.0 ml of solution is 7.67 M.

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.Substitution of values in the given formula gives, molarity= 22.41/58.44×1/0.05=7.67 M.

Thus, the  molarity of solution which contains 22.41 grams of NaCl in 50.0 ml of solution is 7.67 M.

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What results when equal but opposite charges are present in two regions of a polar molecule? A. dipole B. ionic bond C. Electron sea D. crystal lattice

Answers

Answer: A. dipole

Explanation:

Dipole can be defined as the separation of the equal and opposite charges present in the molecule via ionic bonding. The water molecule comprising of two molecules of hydrogen being positively charged and one molecule of oxygen being negatively charged are connected via ionic bonding thus water molecule is an example of dipole molecule. There is unequal distribution of the electrical density throughout the molecule.

The polar molecule results in a dipole when equal but opposite charges are present in two regions.

Dipole:  

Dipole arises when a molecule have opposite and equal charge in the ends.

For example - water molecule

In water molecule Oxygen is negatively charged and hydrogen have low electronegativity, this difference in electronegativities arise dipole in molecule.

Therefore, the polar molecule results in a dipole when equal but opposite charges are present in two regions.

To know more about Dipole,

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How do waves form?

Lesson 2.13

Question 4 options:

Ocean waves don't form


Ocean waves form as wind is absent.


Ocean waves form as wind moves across the surface, transferring its energy to the water.


Ocean waves form as salinity increases.

Answers

Answer:

It's the 4th one. waves are created by the wind

Answer:

C. Ocean waves form as wind moves across the surface, transferring its energy to the water.

Explanation:

hope this helps! c:

list 5 things which we can make using each of the following materials​

Answers

Answer:

Glass

1.microscopes

2.mirrors

3.glass shelves

4.wrist watch glass

5.magnifying glass

Metal

1.keys

2.automobile body parts

3.coins

4.window frames

5.screws and nails

Plastic

1.bottles

2.boxes

3.balls

4.carry bags

5.buckets and mugs

Wood

1.chairs

2.tables

3.shoe stand

4.dressing table

5.shelves

Which is not an example of mechanical energy used in power plants? *
wind
water
O burning fossil fuels
O gravity

Answers

burninh fossil fuels is not an example

Answer:

Gravity

Explanation:

Gravity is not a form of mechanical energy used in power plants

1)Change the following temperatures to Kelvin: 100 C and -20 C
2)Change the following temperatures to Celsius: 273 K and 15 K

Answers

Answer:

373 K; 253 K

0°C ; -258°C

Explanation:

In order to change Temperatures to Absolute Value (Kelvin) you shoud do this sum:

T° in C  + 273 = T° in K

For question 1:

100°C + 273 = 373K

-20°C + 273 = 253K

For question 2:

T° K - 273 = T° C

273 K - 273 = 0°C

15 k + 273 = -258 °C

Answer:

-67.8

Explanation:

A trait that is helpful to a species will become more common in that
species over time. This is called what.

A. genetic variation
B. transition
C. overproduction
D. selection

Answers

B is the right answer

Which of the following best explains how minerals get into streams?

A. Rainwater that is high in minerals from the atmosphere falls into the stream.
B. The stream absorbs minerals from the plants growing in and around its banks.
C. Rainwater dissolves minerals out of the rocks and soil along the stream during runoff.
D. When water evaporates from the ocean, it takes minerals with it and redeposits them as rainwater into the stream.
please help me

Answers

Answer:

C:Rainwater dissolves minerals out of the rocks and soil along the stream during runoff

the answer is C have a great rest of your day

how much heat is released as 5.00G of PB cool from 75.0° C to 25.0° C

Answers

Answer:

32.25 J

Explanation:

Heat, H = ?

Mass, m = 5g = 5 / 1000 = 0.005 Kg

Initial Temperature = 75.0° C

Final Temperature = 25.0° C

Temperature change, ΔT = Final - Initial = 50° C

Specific heat capacity of lead, C = 129 (J/kg°C)

The relationship between these quantities is given by the equation

H = mCΔT

H = 0.005 * 129 * 50

H = 32.25 J

What are the general trends in first ionization energy across a period (LR) within the
periodic table? From bottom to top within a group?

Answers

Moving left to right within a period or upward within a group, the first ionization energy generally increases. As the atomic radius decreases, it becomes harder to remove an electron that is closer to a more positively charged nucleus. (this is copywriter so please just interpret)

classify matter as elements mixtures and compounds

Answers

Answer:

An element contains just one type of atom. A compound contains two or more different atoms joined together. A mixture contains two or more different substances that are only physically joined together, not chemically. A mixture can contain both elements and compounds.

What is the charge on an atom after it gains two electrons during the formation of a bond?
One negative charge
One positive charge
Two negative charges
Two positive charges

Answers

Answer:

two negative charges is the answer of your question

Anyone help please more & you get extra points

Answers

Answer:

qns-4

1-multicellular organism

2-unicellular organism

3-unicellular organism

4-multicellular organism

5-unicellular organism

6-multicellular organism

7-unicellular organism

what is a food chain OR web, and what is it useful for?

Answers

Answer:

-

-

Food webs can be used to study bottom-up or top-down control of community structure.

Explanation:

Food chains are important because they show the intricate relationships in ecosystems. They can reveal how each organism depends on someone else for survival. Food chains also display what happens when a problem occurs and a producer or consumer is lost.

-

-

-

-

HELP PLEASE , ITS DUE BY 6 ❤️10. If temperature were increased at the same rate for all four substances, which substance
would turn into a gas first?

Answers

Answer:

Dependant

Explanation:

Depending on the kind of substance you have (since ur answer of what substances was vauge) you would want to look at the molecular structure of the substances.

Understanding intermolecular bonds are key here (research this)

For example, Bromine is found as Br2 and only exerts London dispersion forces as there is no difference in polarity. And because this force is weaker, it has a lower boiling point

Another example being something like Hydrochloric acid (HCl). This is where Hydrogen acts as the positive atom while chlorine is the negative atom. This creates a stronger force and thus, a higher boiling point than Br2

Finally, there is Something like H2O where the force in play is Hydrogen bonding as Nitrogen, Oxygen, Fluorine where the bonds are strongest due to the electronegativity is at the greatest difference between these and Hydrogen. and thus having a higher boiling point.

So depending on the substance's bond, that will help determine the boiling point. If they fall under the same group, go based on the greatest difference in electronegativity.

I don't know if this is what you're looking for but, hope this helps. :)

Find Jay's instantaneous speed at 35 minutes.

Find jays instantaneous speed at 35 minutes.

Answers

What do u mean by the question?

Question 5 of 5
When planning space exploration, scientists face many
challenges. One issue is the weight of the items being
transported. They can use the engineering design process
to help minimize the weight of materials on board a
spacecraft.
You have designed a prototype of a new, lighter material. What should be the
next step in your process?
A. Update your initial design for the new type of material.
B. Test to see
whether your material is strong and works well.
C. Figure out what problems people want to solve.
D. Brainstorm new ways to design materials.

Answers

Answer:B

Explanation: got it right on test

Test to see whether your material is strong and works well  should be the next step in your process. Therefore, the correct option is option B.

What is space exploration?

Space science and technology are used in space exploration to learn more about the universe. While astronomers use telescopes to explore the universe, both unmanned robotic space missions and human spaceflight also participate in the physical exploration of space.

When planning space exploration, scientists face many challenges. One issue is the weight of the items being transported. They can use the engineering design process to help minimize the weight of materials on board a spacecraft.  You have designed a prototype of a new, lighter material. Test to see whether your material is strong and works well  should be the next step in your process.

Therefore, the correct option is option B.

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what type of galaxy is this

Answers

Explanation:

it is an spiral as it are rounded so

It is a spiral type of galaxy.

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Within 3 months after D Day how many troops and vechicles had the allies landed in France? Suppose the town of Boone has a total population of 70,000 people. Of those, 65,000 people are employed. There are 1,000 full-time students who are not employed or actively seeking work. The rest of the people are out of work but have been actively seeking work within the past four weeks.Instructions: In part a, round your answer to 1 decimal place. In part b, enter your answer as a whole number.a. What is Boones unemployment rate? percentb. Suppose there are 1,000 people who are unemployed as a result of frictional unemployment and 2,000 people who are unemployed as a result of cyclical unemployment. How many people are unemployed as a result of structural unemployment? Can you guys help me 8. Jill bought a soda for $3 and eight candy bars. She spent a total of $43. determine the value of x in 5x=25 Write 80% as a decimal.Ihelp me?? giving brainliest Find the area of the composite figure below. How is dopamine involved in drug addiction?1) drugs change dopamine into another neurotransmitter.2) drugs cause the reabsorption of dopamine.3) drugs decrease dopamine levels in the brain.4) drugs increase the level of dopamine in the brainAnswer and I will give you brainiliest Find LCM of 45, 60 & 135Pls need answers Dr. Penningworth asks Mr. Raines how long he has struggled with his addiction to alcohol. Mr. Raines informs him that he has had a drinking problem since he was 18, for more than 28 years. Does this strengthen or weaken your suggestion regarding Susan's response to Dr. Penningworth in the preceding question? Can Anybody Help ME With This PLZ!!!Which sentence contains a collective noun?A.) During World War I, people used drums, signals, and lanterns to send messages.B.) Flags or lights were often used to send messages between ships at sea during World War I.C.) Messages can be sent and received in a variety of ways during wartime.D.) During World War I, messages were tied to pigeon legs. 1. What was the Mandate of Heaven?2. What are the origins of the Mandate of Heaven?3. How did the Mandate of Heaven evolve?CHOOSE ONE ADDITIONAL QUESTION TO ANSWER:Was the Mandate of Heaven a political tool or a religious belief? Could it be both? Explain using a few sentences.ORIs the Mandate of Heaven fair? Why or why not? Explain using a few sentences and evidence from the text. NEED HELP ASAP PLEASE WITH EXPLANATION PLEASEThe original price of a watch was $200. The price was reduced to $160during a sale. What was the percentage decrease in the price of thewatch?(1) 20%(2) 25%(3) 40%(4) 80% Use the figure below to determine which of these statements are true? Select All thatapply ,A < GDR and < GDA are complementary angles.BCGDC and CD. E Plssss helpWhat is an exponent and how do you solve it? 4-5 sentences :) Kathy purchased cereal in bulk on two different trips to a grocery store. She paid $5.79 per pound each time. She purchased 2.25 pounds the first time and 1.8 pounds the second time. Rounded to the nearest cent, what is the total amount Kathy paid for both cereal purchases? I WILL DO ANYTHING JUST PLEASE Read this sonnet, and then complete the sentences that follow.Sonnet 4by Edmund SpenserBe not dismayed that her unmoved mindDoth still persist in her rebellious pride:And love not like to lusts of baser kind,The harder won, the firmer will abide.The durefull Oak, whose sap is not yet dried,is long ere it conceive the kindling fire;But when it once doth burn, it doth divide,Great heat, and makes his flames to heaven aspire.So hard it is to kindle new desire,In gentle breast that shall endure for ever:Deep is the wound, that dints the parts entireWith chaste affects, that naught but death can sever.Then think not long in taking little pain,To knit the knot, that ever shall remain.The sonnet is written in theform. The rhyme scheme isThe main idea of the poem isV The poet has used thev of burning an oak to emphasize how patient one needs to be when trying toHe also uses the metaphor of theto emphasize the depth of love. PLEASE ANSWER THE QUESTION PLEASE!!!(the bold words are the options for each question) It costs $40 to register for Karate, then $15 per lesson. If Rachel is taking lessons and wants to spend no more than $250, how many lessons can she take?