How can energy transfer affect the physical and chemical properties of matter?

Answers

Answer 1

A physical change is a change in the state or properties of matter without any accompanying change in the chemical identities of the substances contained in the matter. Physical changes are observed when wax melts, when sugar dissolves in coffee, and when steam condenses into liquid water. Other examples of physical changes include magnetizing and demagnetizing metals (as is done with common anti-theft security tags) and grinding solids into powders (which can sometimes yield noticeable changes in color).

The characteristics that distinguish one substance from another are called properties. A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity. Some physical properties, such as density and color, may be observed without changing the physical state of the matter. Other physical properties, such as the melting temperature of iron or the freezing temperature of water, can only be observed as matter undergoes a physical change

Figure :Copper and nitric acid undergo a chemical change to form copper nitrate and brown, gaseous nitrogen dioxide. During the combustion of a match, cellulose in the match and oxygen from the air undergo a chemical change to form carbon dioxide and water vapor. Cooking red meat causes a number of chemical changes, including the oxidation of iron in myoglobin that results in the familiar red-to-brown color change.

chemical change always produces one or more types of matter that differ from the matter present before the change. The formation of rust is a chemical change because rust is a different kind of matter than the iron, oxygen, and water present before the rust formed. The explosion of nitroglycerin is a chemical change because the gases produced are very different kinds of matter from the original substance. Other examples of chemical changes include reactions that are performed in a lab (such as copper reacting with nitric acid), all forms of combustion (burning), and food being cooked, digested, or rotting. Note that the number of atoms for a given element is calculated by multiplying the coefficient of any formula containing that element by the element’s subscript in the formula. If an element appears in more than one formula on a given side of the equation, the number of atoms represented in each must be computed and then added together. For example, both product species in the example reaction, CO2 and H2O, contain the element oxygen, and so the number of oxygen atoms on the product side of the equation is

(1 CO2 molecule × 2 O atoms per CO2 molecule) + (2 H2O molecules × 1 O atom per H2O(molecule) = 4 O atoms

The equation for the reaction between methane and oxygen to yield carbon dioxide and water is confirmed to be balanced per this approach, as shown here: CH 4 + 2O2⟶CO2 + 2H2O

Element Reactants Products Balanced?

C 1×1 = 1 1×1 = 1 1 = 1, yes

H 4×1 = 4 2×2 = 4 4 = 4, yes

O 2×2 = 4 (1×2) + (2×1) = 4 4 = 4, yes

A balanced chemical equation often may be derived from a qualitative description of some chemical reaction by a fairly simple approach known as balancing by inspection. Consider as an example the decomposition of water to yield molecular hydrogen and oxygen. This process is represented qualitatively by an unbalanced chemical equation: H2O⟶H2 + O2 (unbalanced)

Comparing the number of H and O atoms on either side of this equation confirms its imbalance:

Element Reactants Products Balanced?

H 1×2 = 2 1×2 = 2 2 = 2, yes

O 1×1 = 1 1×2 = 2 1 ≠ 2, no

H2O to H2 O2 would yield balance in the number of atoms, but doing so also changes the reactant’s identity (it’s now hydrogen peroxide and not water). The O atom balance may be achieved by changing the coefficient for H2O to 2.

2H2O⟶H2 + O2 (unbalanced)

Element Reactants Products Balanced?

H 2×2 = 4 1×2 = 2 4 ≠ 2, no

O 2×1 = 2 1×2 = 2 2 = 2, yes

The H atom balance was upset by this change, but it is easily reestablished by changing the coefficient for the H2 product to 2.

2H2O⟶2H2 + O2 (balanced)

Element Reactants Products Balanced?

H 2×2 = 4 2×2 = 4 4 = 4, yes

O 2×1 = 2 1×2 = 2 2 = 2, yes

These coefficients yield equal numbers of both H and O atoms on the reactant and product sides, and the balanced equation is, therefore:

2H2O⟶2H2 + O2

Types of Chemical Reactions

Humans interact with one another in various and complex ways, and we classify these interactions according to common patterns of behavior. When two humans exchange information, we say they are communicating. When they hit each other with their fists, we say they are fighting

A photograph is shown of a yellow green opaque substance swirled through a clear, colorless liquid in a test tube.

Answer 2
When energy is transferred through one material to another material it affects the bonding between the atoms or moleculesThe bond becomes weak or may stronger .The. it affects the chenical properties like boiling point, melting point etc.The energy also can change the state of matterLike hydrogen gas and oxygen gas turns liquid water .So physical properties are changed

Related Questions

So im very confused!!! if you want to answer then plz read the instructions and plz give proper answer !!! Need help asap!!!!!!!!!!!!!!!!

Answers

It is kenetic energy
First answer should be a picture of someone with spiky hair and a balloon next to them. It’s kinetic energy.

Second answer is that the spring, when pushed down, has the POTENTIAL to spring back up and exert energy. It’s potential energy.

Hope this helps

I HAVE A D- IN SCIENCE PLEASE HELP

Complete the sentence.

In chemical reactions, a product is _________.

A. any substance that is to the left of the arrow

B. any substance that is made of the greatest number of atoms

C. any substance that is made from the least number of atoms

D. any substance to the right of the arrow

Answers

Answer:

D - Any substance to the right of the arrow.

Explanation:

A reactant is a substance that is present at the start of a chemical reaction. The substance(s) to the right of the arrow are called products . A product is a substance that is present at the end of a chemical reaction.

Please help!!! Hydrogen and oxygen undergo a chemical reaction to form water. How much water will be created if hydrogen has a mass of 3.56 g and the oxygen has a mass of 25.32 g?

Actual answers only please :)

Answers

Answer:

22.88g

Explanation Hope this helped <3

Is gravity alone sufficient to explain the behavior of the tinsel in the Levitating-orb system? Explain why.

Answers

Answer:

The object is moving forward

Explanation:

Hop this helps :)

Answer: The orb is attracted to the pipe at first because the orb has a positive charge. As soon as the orb touches the pipe, it picks up a negative charge. Since the pipe is negative and the tinsel orb is now negative, they repel away from each other and the orb levitates!

Think about the ecosystem that you live in.
Write a response below describing it in complete sentences.
4)
Use each of these terms correctly in your description:
• community
• ecosystem
• biotic
• population
• individual
• abiotic

Answers

Answer:

this is an answer for YOU to answer. this is about YOUR ecosystem

Explanation:

just say what it's like, is it a community? is it populated? explain.

Through all the food chain, food web, chemical cycles, etc., biotic and abiotic forces interact within an ecosystem. Therefore, the functional and structural unit of nature is the ecosystem.

What is ecosystem?

The functional and structural unit of nature is the ecosystem.  This relationship between living and nonliving elements is handled by the ecosystem. All living things, including plants, animals, and microorganisms, rely on non-living substances to survive and keep the natural world in balance.

Individual, population and community play important role in running a ecosystem. Terrestrial Ecology: A terrestrial ecosystem is an ecosystem that is found on land. Grassland, desert, and tundra ecosystems, for instance.

Therefore, the functional and structural unit of nature is the ecosystem.

To know more about ecosystem, here:

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Oxygen in the air can react with wood when a match is burned. Ash is produced.

Which statement would be true?

A. The atoms of the ash did not exist before.

B. Ash has similar properties to oxygen.

C. The atoms of wood and oxygen disappear during the burning.

D. Ash is a different substance than wood.

Answers

Answer:

D. Ash is a different substance than wood.

Answer:

D the atoms of ash did not exist before

Explanation:

because I jnwo .... k

What type of fossil forms when the impression from the remains of an organism is filled in with soil and hardens into the shape of the original organism?

Answers

Answer:

i belive its a "Mold fossil"

Explanation:

A food scientist is determined to create a mango that looks exactly like a mango but tastes like salmon. Can this be achieved through artificial selection? Why or why not?

Answers

Answer:

depends on the artificial 'materials' used and the food scientist

Explanation:

If the food scientist is skilled enough and works hard enough this it might be possible but this does seem like a difficult task i personally doubt that this could be done until next few years. :)

No , Because ripened orange tastes different than artificial so we can know

What type of force is known for exerting an upward force on objects in a fluid?
1. buoyant force
2. friction force
3. gravitational force
4. magnetic force
The First person to answer will get the brainliest!!!!!!

Answers

Answer:

A. buoyant force.

Explanation:

It is like a buoy, but it is force pushing an object while in water.

hope this helped.

with the development of technology why is muscle atrophy occurring more often what can you do to stop it THIS IS A SCIENCE QUESTION

Answers

Answer: Technology is causing people to sit around more while using it. Therefore people are not exercising as much. This causes the strength of muscles to go away. A way to help stop this is to get exercise for at least one hour a day.

Explanation:

In this project, you will practice calculating work and speed using the proper formula. You will also use a data table to record and analyze your data. For each question, you will complete a row in your data table to record the details, and your results. Don't forget to use proper units of measurements in all of the parts of your table!

pls help asap mark brainyist can't spell sorry

Answers

Answer:

CHECK THE IMAGE

Explanation:

Plz help! Write your answer in complete sentences ! Write a proper answer! 1st one to answer will get a brainliest!

Answers

Answer:

the name for CaCO3 is Calcium Carbnate, and its relations with coral reefs is that the process for making said compuond happens within coral, and is considered the building block for coral reefs.

Explanation:

hope this helps!

help pls due todayyyy

Answers

Answer: Below

Explanation:

Steal wool + oxygen (fire): The steel wool is a grayish color and has a rough surface. Oxygen is transparent  It looks like a powder, and like if it was rusted steel wool but then broken apart and turned into a powder  Well Iron oxide is 7 grams and steel wool combined is 7 grams so you can say that the mass was conserved  Yes, this is a chemical change because the steel wool rusted and rust is a chemical change, so iron oxide is cause because if a physical change.

Egg + Heat : The egg has a yellow yolk in the middle while there is some type of liquid at the border of the yolk, but it is clear, the heat is hot but transparent  The egg turned into a delicious food called an omelet what was yolk staid as a liquid but got a tad harder, but the transparent border around it turned white  It was conserved because the eggshell was 4 grams and the fried egg is 41 grams  It is a chemical change because it results in the formation of new particles, and the chemical bonds break up and new ones are formed.

Water + Heat The water is a clear liquid, while the heat is very hot but transparent  The water turned into a type of oxygen -Water Vapor-   If 5 g of water becomes a gas it becomes 5 g of water vapor. The mass of the liquid water is simply transferred into the mass of the newly formed water vapor.  There was no chemical reaction because the water vapor can be turned back to water also it just changed from a liquid to a gas and did not change its composition  

Zinc + Hydrogen Chloride  Zinc: a white/silver metallic solid. Hydrogen chloride (dilute hydroelectric acid) a transparent, colorless liquid with a very low pH (acidic). Zinc "dissolved" in hydrogen chloride, while emitting a colorless gas.  The liquid remains a colorless liquid, possibly still having a low pH from the unused acid. The colorless gas collected in a test tube gives a popping sound when ignited with a burning wooden splint, so it is not air embedded in the zinc, nor dissolved in hydroelectric acid.  Well although the zinc chloride is 12 grams and not 15 the gas that was released was 3 grams and as we all know 3 + 12 is 15 so you could say that the mass was conserved The production of a new substance (most probably hydrogen) from the reaction of the two reactants. When a few drops of the liquid product are evaporated on a watch glass, a white residue is left.

When a few drops of the liquid hydroelectric acid are evaporated on a watch glass, there is no residue. This proves that a new product (hydrogen gas), (white powder, zinc chloride) is produced instead of zinc being physically dissolved in hydroelectric acid.

Sodium Hydroxide + Copper Sulfate Sodium hydroxide is a turbid solution and copper sulfate is in form of bright blue crystals. When their solutions are mixed with each other, a pale blue precipitate of basic copper hydroxide & a solution of neutral salt sodium sulfate will be formed. The sodium hydroxide and the copper sulfate combined make a total of 67 grams and the product  is split because the sodium sulfate is 47 grams and the copper hydroxide is 20 grams but all together it is still 67 grams so you could say that the mass was conserved The proof of the reaction is the appearance of pale blue precipitates of basic copper hydroxide & a solution of neutral salt sodium sulfate.

GIVING 40 POINTS PLZ HELP!!!!!!!!

Answers

Answer:

to find heart rate put 2 fingers on your wrist or neck also what one do you need help with

Explanation:

To find heart rate put 2 fingers on you wrist or neck

Plz, help! I need help with questions a and b! Plz, write your answer in complete sentences! And the first person to answer will get a brainliest! Plz, NO SCAM links!!!!!!!

Answers

Use socratic it’s an app it will have the answer for you
Answer:
FOR A : Once the tennis ball and the board are in motion, they will continue in motion in the same direction at the same speed unless acted upon by an unbalanced force. This demonstrates Newton's first law of motion.

FOR B: When the accelerating ball hits the resting pins, it causes them to become unbalanced forces and they accelerate into each other

The Statue of Liberty is made of copper metal. Copper metal has the physical property of being orange in color. Over years of being exposed to moist air, the surface of the statue has begun to form a green coating. Is the green coating the product of a physical or chemical change? Explain how the green layer is formed.

Answers

Answer:

The statue is made of a metal called copper. Over time, the copper has gone through a chemical change. This is called a chemical reaction.

Explanation:

i dont think this will help...

Answer:

Chemical.

Explanation:

Pretty sure its chemical, due to it oxidising which is a chemical reaction.

Based off of the simulation pulley gizmo; how many people did it take to lift the armchair with a fixed pulley? (Look at Activity A question 2)



Question 5 options:

1


3


4


5

Answers

Answer:

IN WHICH GRADE YOU ARE????

List the communities in a successional sequence of secondary succession?

Answers

Secondary succession occurs in areas where a biological community has already existed but some or all of that community has been removed by small-scale disturbances that did not eliminate all life and nutrients from the environment.

The given communities can be ordered in the secondary succession as grass, shrubs, small trees and large tress.

What is secondary succession ?

The life cycle of a plant is characterized by secondary ecological succession. Secondary succession, in contrast to primary succession, is a process initiated by an occurrence such as a forest fire, harvesting, hurricane, etc. that reduces an already established ecosystem (such as a forest or a wheat field to a smaller population of species.

As a result, secondary succession occurs on preexisting soil, whereas primary succession typically takes place in a location lacking soil. Many elements, including trophic interaction, starting composition, and competition, might influence secondary succession. Trade-off with colonization

Therefore, the given communities can be ordered from the small level to higher level as grass, shrubs, small trees and large tress.

Find more on secondary succession:

https://brainly.com/question/26675203

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Your question is incomplete. But your complete question is as follows:

List the given communities in a successional sequence of secondary succession? shrubs, small trees, grass, large tress.

How does the Coriolis effect impact the Gulf Stream and the Brazil Current?
It turns the Gulf Stream southwest and the Brazil Current northeast.

It turns the Gulf Stream northwest and the Brazil Current northeast.

It turns the Gulf Stream northeast and the Brazil Current southwest.

It turns the Gulf Stream northeast and the Brazil Current northwest.

Answers

Answer:

Honestly, I think it is C.

Explanation:

Brazil is in the south, so that's why it is C.

hope this helped.

Helena uses the same force to move an object that has a mass of 12 kg and an object that has a mass of 5 kg. She predicts the 12 kg object will have a greater change in motion. Is she correct?

No, the object with the smaller mass will have a greater change in motion.
No, both of the objects will have an equal change in motion.
Yes, the object with the larger mass will have a greater change in motion.
No, neither object will have a change in motion.

Answers

Answer:

No, the object with the smaller mass will have a greater change in motion.

Explanation:

Hope this helps!

If the Titan lake evaporated, how would the change in kinetic energy affect the speed of the molecules found in the lake? (highlight one)
 The kinetic energy would increase. The molecules would move faster.
 The kinetic energy would decrease. The molecules would move slower.
 There would be no change in kinetic energy. The molecules would move at the same speed.

Answers

Answer:

a) The kinetic energy would increase. The molecules would move faster.

Answer: The kinetic energy would increase. The molecules would move faster.

can someone solve this question please​

Answers

Answer:

MgO + 2 HNO3 → Mg(NO3)2 + H2O

Explanation:

How does the law of conservation of mass apply to this reaction: Mg + HCl → H2 + MgCl2?
A.) Hydrogen and chlorine need to be balanced. There is an equal amount of magnesium on each side
B.) The equation needs to be balanced. There are fewer hydrogen atoms in the equation than magnesium or chlorine.
C.) Only the hydrogen needs to be balanced. There are equal numbers of magnesium and chlorine.
D.) The law of conservation of mass has already been applied. There is an equal number of each element on both sides of the equation.

Answers

Answer: The correct answer is A. Hydrogen and chlorine need to be balanced. There's an equal amount of magnesium on each side.

PLS HELP (science)
Match the following molecules with the number of atoms they contain.

1. 2Fe
seven
2. 2Al 3O 2
eight
3. 4O 2
two
4. 5C
five
5. H 2SO 4
ten

Answers

Answer:

hello I will answer ur question if u answer mine

Explanation:

1. Two
2. Ten
3. Eight
4. Five
5. Seven
Just count the number number of substances, the subscript(number at the bottom) tells you how many of it there is. Then you check if there is a coefficient(number in front of all the substances) and if there is a number you multiply you previous answer by it. The coefficient tells you how many molecules there is. Your final answer is the number of atoms!

PLS HELP DUE SOON(Ignore that wet thingy on my paper it’s my matcha latte it go on it lol)

Answers

Answer:

well for

1. Because cytoplasm is made of a jelly like consistent

and

2. wastes product are transported by endoplasmic reticulum ,from organelles to outside cell ,so if cell size is big ,it will take more time in transportation and vice versa

Answer: Hello

Explanation: Hello

HELPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!! 30 POINTS!!!!!!!!!!!!!!

Answers

Answer:

What is this please send questions properlythen i will answer it properly

What will a soccer player need to do to change a ball’s position?
1. He must apply gravity to the ball so that the ball will move.
2. He must weigh the ball to determine the motion that needs to occur.
3. He must set the ball in motion by applying a force in the desired direction.
4. He must identify the location of the ball.
First one to answer will get brainliest!

Answers

Answer:

He must set the ball in motion by applying force in the desired direction.

Explanation:

That is how the soccer player will change the ball's position.

Have a good day :)

Answer:

4. He must identify the location of the ball.

Explanation:

If a soccer player needs to change his position, then he will need to identify the location of the ball.

hope this helped.

I NEED HELP ASAP PLZZZZ

Answers

how to help ya… maybe 2

Answer: 2 :)

Explanation:

I took the test

speed =________

ate divided by time

rate divided by distance

distance divided by time

time divided by rate

I need answer asap! Plz someone help ! Ill give brainliest!

Answers

Answer:

Distance divided by time is the answer. :)

Explanation:

Distance divided by time

An object has a mass of 960 g and a volume of 15cm3 what’s the density?

Answers

Explanation:

density = mass ÷ volume

mass = 960g

volume = 15³ = 15 × 15 × 15

= 3375 cm

density = 960 ÷ 3375

= 0.28 g/cm³

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