The difference between Physical/Chemical properties and Physical/Chemical changes

Answers

Answer 1
Physical changes can be reversed and chemical changes can’t be reversed. A physical property is a characteristic which can be identified without changing the substance but to identify a chemical property, you do have to change the substance.
Answer 2

Physical changes can be reversed and chemical changes can’t be reversed. A physical property is a characteristic which can be identified without changing the substance but to identify a chemical property, you do have to change the substance.


Related Questions

A chain reaction is created in a nuclear plant when U-235 in the fuel rods is bombarded with _____, causing the nucleus to become unstable and split.

Answers

Answer:

nuclear fission.

that's the answer

PLEASE EXPLAIN what is glucose

Answers

Answer:

(Hope this helps can I pls have brainlist (crown)☺️)

Explanation:

Glucose is the most common form of sugar in the blood and the body's primary source of energy. Glucose is derived from the meals we eat or produced by the body from other chemicals. The circulation transports glucose to the cells. Several hormones, including insulin, regulate blood glucose levels.

a simple sugar that is a component of many carbohydrates and is a vital source of energy in living things.

Blood sugar, often known as glucose, is the most common sugar present in the body. It is your body's major source of energy and comes from the food you eat. Glucose is carried by your blood to all of your body's cells, where it is used for energy.

Fill in blank.
Normal force is always ____
to the surface you object is resting on.
perpendicular
parallel
opposite
skewed

Answers

Opposite





I think so

CH4 + 202 → CO2 + 2H2O

Answers

It’s a combustion reaction but what are you trying to find?

Convert 25 gigaseconds into centiseconds​

Answers

25 gigaseconds is equal to 2,500,000,000,000 centiseconds

The littoral zone is rich in nutrients
true or false

Answers

Answer:

false

Explanation:

A. Parts of Solutions
1. The substance that exists in the greatest quantity in a solution is called
the

Answers

Answer:

a

Explanation:

the substance that exists

Please someone help WHATS the answer

Answers

the average atomic mass: 40.078 u
electron configuration is the long list underneath the name "calcium" on the element. it starts with 1s^2s^2

Which three things does a plant need to create a glucose molecule in photosynthesis?
Choose all correct answers.
water
oxygen
carbon dioxide
sunlight

Answers

Answer: carbon dioxide water and sunlight

what is the electron configuration of a n3- anion?

Answers

Answer:

You can see in the above illustration of the periodic table that N is in Period 4, Group 5A, and p-block. Before reaching N, you will pass through the atomic orbitals 1s, 2s, and 2p. The electron configuration of N3- is N3-: 1s22s22p6 .

Explanation:

Calcule la molaridad de una solución acuosa de ácido sulfúrico (H₂SO₄) que se preparó al mezclar, en un recipiente aforado, 4 moles del ácido con suficiente agua hasta completar 8 litros de solución. *
0.4
0.6
0.3
0.5

Answers

Considerando la definición de molaridad, la molaridad de una solución acuosa de ácido sulfúrico (H₂SO₄) es 0.5 [tex]\frac{moles}{litro}[/tex].

La molaridad es una medida de la concentración de un soluto en una disolución que se define como el número de moles de soluto que están disueltos en un determinado volumen.

La molaridad de una solución se calcula dividiendo los moles del soluto por el volumen de la solución:

[tex]Molaridad=\frac{numero de moles de soluto}{volumen}[/tex]

La Molaridad se expresa en las unidades [tex]\frac{moles}{litro}[/tex].

En este caso, sabes que una solución acuosa se preparó al mezclar 4 moles del ácido con suficiente agua hasta completar 8 litros de solución. Entonces, sabes que:

número de moles de soluto= 4 molesvolumen= 8 litros

Reemplazando en la definición de molaridad:

[tex]Molaridad=\frac{4 moles}{8 litros}[/tex]

Resolviendo:

Molaridad= 0.5 [tex]\frac{moles}{litro}[/tex]

Finalmente, la molaridad de una solución acuosa de ácido sulfúrico (H₂SO₄) es 0.5 [tex]\frac{moles}{litro}[/tex].

Aprende más:

https://brainly.com/question/17647411?referrer=searchResultshttps://brainly.com/question/21276846?referrer=searchResults

what is the ratio of oxygen to iron in iron oxide?

Answers

Answer:0.2865

Explanation:

mixture requires constant shaking to keep its constituents combined. It is best described as a _____.

homogenous mixture
colloid
suspension
solution

Answers

Answer:

[tex] \tiny \tt \: [/tex]

Suspension

The element X has three naturally occurring isotopes. The masses (amu) and % abundance of the isotopes are given in the table below. The average atomic mass is ______amu. Give your answer two decimal places.

Answers

Answer:

In order to solve for this you would need to plug it into an equation. You would add them all up to eachother after multiplying them by their percentages.

So it would be (0.75*48.90)+(0.18*49.10)+(0.07*50.20). Plug it all into a calculator and you get 49.027amu. Then you would round to significant figures so 49.03amu should be your answer.

What change will occur if liquid gallium is removed from a hand​

Answers

Answer:

Gallium's melting point is low enough that it can be melted in the human hand and then refrozen if the hand is removed. The liquid metal has a significant propensity to supercool below its melting/freezing points when exposed to high temperatures.

Explanation:

Hope it helps:)

galliums melting point is pretty low

A 13. 00 g sample of citric acid reacts with an excess of baking soda as shown in the equation. Upper H Subscript 3 Baseline Upper C Subscript 8 Baseline Upper H Subscript 5 Baseline Upper O Subscript 7 Baseline 3 Upper N a Upper H Upper C Upper O Subscript 3 Baseline right arrow 3 Upper C Upper O Subscript 2 Baseline 3 Upper H Subscript 2 Baseline Upper O Upper N a Subscript 3 Baseline Upper C Subscript 8 Baseline Upper H Subscript 5 Baseline Upper O Subscript 7. What is the theoretical yield of carbon dioxide? 0. 993 g 2. 98 g 3. 65 g 8. 93 g.

Answers

Answer:

The answer is C.

Explanation:

i got a 100 on the test

The theoretical yield of carbon dioxide, CO₂ obtained from the reaction is 8.93 g

We'll begin by calculating the mass of citric acid, H₃C₆H₅O₇ that reacted and the mass of carbon dioxide, CO₂ produced from the balanced equation.

H₃C₆H₅O₇ + 3NaHCO₃ —> 3CO₂ + 3H₂O + Na₃C₆H₅O₇

Molar mass of H₃C₆H₅O₇ = (3×1) + (12×6) + (5×1) + (7×16) = 192 g/mol

Mass of H₃C₆H₅O₇ from the balanced equation = 1 × 192 = 192 g

Molar mass of CO₂ = 12 + (2 × 16) = 44 g/mol

Mass of CO₂ from the balanced equation = 3 × 44 = 132 g

From the balanced equation above,

192 g of H₃C₆H₅O₇ reacted to produce 132 g of CO₂

Finally, we shall determine the theoretical yield of CO₂. This can be obtained as follow:

From the balanced equation above,

192 g of H₃C₆H₅O₇ reacted to produce 132 g of CO₂.

Therefore,

13 g of H₃C₆H₅O₇ will react to produce = (13 × 132) / 192 = 8.93 g of CO₂.

Thus, the theoretical yield of CO₂ is 8.93 g

Learn more about stoichiometry: https://brainly.com/question/25910524

In your own words, explain in a simple and short way of what matter is, and how is it described.

Answers

Answer:

The basic thing that all things are made up of

Explanation:

do you think organisms who live in the artic would survive in the desert? Do you think organisms in the desert would survive in the artic? Why or why not?

Answers

Answer:

I'd say probably not

Explanation:

Organisms have evolved to survive and thrive in particular environmental conditions, specifically focusing on food supply, temperature, terrain, etc.. Therefore, desert animals would not be equipped with the insulation to survive in cold climates like the artic, and would freeze to death, and artic animals would most likely die from heat exhaustion in the desert. Additionally, fish, which is a main food source for articles animals, are not available in the desert, and it's the same case for desert animals in the artic. Finally, those organisms' enzymes and proteins, which make up their being and are the reason they can function, are only optimal in the temperature range in which they normally live; therefore, switching to such drastically different climate would result in their enzymes denaturing and their cell and eventual organism death.

I had graduated cylinder with 50 mL of water. I added a rock to the graduated cylinder and the water level rose to 56 mL. What is the VOLUME of the rock?

Answers

Take 56 mL and subtract the original volume of 50 mL and that will give you the volume of the rock, which is 6mL.

What results when oxygen reaches a burning splint?

Answers

Answer:

Hydrogen (H2) When a burning splint is introduced to a sample of pure hydrogen gas, it will burn with a popping sound. Oxygen (O2) When a smoldering splint is introduced to a sample of pure oxygen gas, the splint will reignite.

Answer:

The burning splinter makes hydrogen and oxygen react and you hear a pop sound.

Explanation:

Which two statements describe a claim that is based on science?

A. It is based on logical reasoning.

B. It is based on empirical evidence.

C. It is based on personal bias.

D. It is Based on a long tradition.

Answers

Answer:

A AND B

Explanation

Personal bias and tradition have nothing to do with true scientific CLAIMs.  We reach the truth by careful observations and logical reasoning (see Sherlock Holmes).

so

A AND B

Count the following atoms​
NEED ANSWER ASAP

Answers

Answer:

2x(hn)po

Explanation:

Use the community property to reorder the terms

Remove the unnecessary parentheses

2hnpo

2hnop

use the community property to reorder the terms

2hnop

When electricity runs through an electric stove, what other type of energy is produced?

A.

heat energy

B.

sound energy

C.

chemical energy

D.

mechanical energy

Answers

When electricity runs through an electric stove, what other type of energy is produced?

Answer: A.) Heat Energy

Excess Na2SO4 (aq) is added to a 42.53 mL sample of Ba(NO3)2(aq).

1. What is the formula of the precipitate?
The formula for the precipitate is 2Na(NO3)(aq).

2. If 3.046 grams of precipitate was formed, what was the molarity of the Ba(NO3)2(aq)?

Answers

1. The formula of the precipitate formed is Ba₂SO₄(s)

2. The molarity of the Ba(NO₃)₂ solution is 0.188 M

1. Determination of the formula of the precipitate formed.

We'll begin by writing the net ionic equation for the reaction between Na₂SO₄ and Ba(NO₃)₂. This is given below:

Na₂SO₄(aq) + Ba(NO₃)₂(aq) —>

2Na⁺(aq) + SO₄²¯(aq) + Ba²⁺(aq) + 2NO₃¯(aq) —> Ba₂SO₄(s) + 2Na⁺(aq) + 2NO₃¯(aq)

Cancel the spectator ions (i.e Na⁺ and NO₃¯) to obtain the net ionic equation

SO₄²¯(aq) + Ba²⁺(aq) —> Ba₂SO₄(s)

Therefore, the formula of the precipitate formed is Ba₂SO₄(s)

2. Determination of the molarity of Ba(NO₃)₂

We'll begin by calculating the number of mole of in 3.046 g of precipitate, Ba₂SO₄

Molar mass of Ba₂SO₄ = (2×137) + 32 + (4×16) = 370 g/mol

Mass of Ba₂SO₄ = 3.046 g

Mole of Ba₂SO₄ =?

Mole = mass /molar mass

Mole of Ba₂SO₄ = 3.046 / 370

Mole of Ba₂SO₄ = 0.008 mole

Next, we shall determine the number of mole of Ba(NO₃)₂ required to produce 0.008 mole of Ba₂SO₄

Na₂SO₄(aq) + Ba(NO₃)₂(aq) —> Ba₂SO₄(s) + 2NaNO₃(aq)

From the balanced equation above,

1 mole of Ba(NO₃)₂ reacted to produce 1 mole Ba₂SO₄.

Therefore,

0.008 mole of Ba(NO₃)₂ will also react to produce 0.008 mole of Ba₂SO₄

Thus, 0.008 mole of Ba(NO₃)₂ is required for the reaction.

Finally, we shall determine the molarity of the Ba(NO₃)₂ solution

Mole of Ba(NO₃)₂ = 0.008 mole

Volume = 42.53 mL = 42.53 / 1000 = 0.04253 L

Molarity of Ba(NO₃)₂ =?

Molarity = mole / Volume

Molarity of Ba(NO₃)₂ = 0.008 / 0.04253

Molarity of Ba(NO₃)₂ = 0.188 M

Learn more: https://brainly.com/question/13403073

Which has more molecules?
A. 1 mole H2O
B. 1 mole Al(OH)3
C. 1 mole NaCl
D. There are all the same

Answers

Explanation:

1 mole H2O

I hope it's helpful for you

1 mole of H₂O has more molecules than other compounds. The correct option is A.

What are molecules?

A molecule is a collection of two or more atoms held together by attractive forces known as chemical bonds.

The International System of Units uses the mole as the unit of material quantity. How many elementary entities of a specific substance are present in an object or sample is determined by its quantity.

The tiniest component of any substance is capable of existing independently while maintaining its chemical and physical properties and is composed of one or more elements.

Out of these molecules, water has more molecules than  1 mole Al(OH)₃ and 1 mole NaCl. They don't have the same number of moles.

Therefore, the correct option is A. 1 mole H₂O.

To learn more about moles, refer to the link:

https://brainly.com/question/26416088

#SPJ2

What is the percentage of Aluminum in Aluminum Sulfate?

Answers

Answer:

342. 15 g/mol is the mass

Al Aluminium 26.98g 2 atoms per mole = 15.7716%

S Sulfur 32.06g 3 atoms per mole = 28.1151%

O Oxygen 15.99g 12 atoms per mole = 56.1133%

Explanation:

Hope this helps

Answer:

15,7%

Explanation:

What is the percentage of Aluminum in Aluminum Sulfate?

Aluminum Sulfate

is Al2 (SO4)3

its molar mass is

(2 X 27) + (3 X 96) = 54 + 288 = 344

THE % Al IS (54 /344) X 100 = 15,7%

PLEASE HELP CHEMISTRY QUESTION
When two solutions are mixed in a beaker, a reaction occurs, and the temperature drop is the reaction of……..
A) exothermic and -ve enthalpy

B) endothermic and -ve enthalpy

C) exothermic and +ve enthalpy

D) endothermic and +ve enthalpy

Answers

Answer:

B

Explanation:

the reaction is endothermic because of the temperature drop and the enthralpy is negative because its an endothermic reaction.

I did some research so I believe this to be correct but if its no I'm sorry

5.The amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead. what is the independent, dependent and controlled variables?

Answers

Independent: Gasoline with different amounts of lead Dependent: Amount of pollution produced

Properties of gases are dependent upon the pressure, temperature, and volume of the container they are in, as well as the number of gas particles. true or false

Answers

Answer:

False

Explanation:

Those would affect physical properties not chemical properties.

Which piece of information could a person obtain from a contour map?
1.
the mineral composition of a mountain
2.
the elevation of a mountain
3.
the speed of water flow in a river
4.
the amount of water in a river

Answers

Answer:

2. The elevation of a mountain.

Explanation:

Contour maps are only used for elevation

I believe it’s number 2
Other Questions
Write the correct order of the letters to the finish line Calcula lo solicitado para una persona que gana un salario de $980.000 mensuales:auxilio de transporte: $106.45418 dias de trabajo: sueldo /30 * los dias que le quiero pagarauxilio de transporte: aux tras/30* los dias que le quiero pagarEPS: 4% sueldototal a pagar:ayudaaa porfa es para hoy mismo Professor Karima has spent years writing academic papers on John Donne, her favorite poet. She's now compiling all her research intobook. What category of writing will Professor Karima's book MOST likely fall under? Which sentence from this introduction paragraph is most likely the hook or attention grabber? (1) Language should be the weapon of truth, yet those who are clever with their words can use language to trick people into believing lies. (2) This is the case in Shakespeare's The Tragedy of Julius Caesar, which centers on the death of Julius Caesar at the hands of people he thought were his friends. (3) The debate then becomes whether Caesar deserved to die. (4) Through the funeral speeches of the characters Brutus and Antony, Shakespeare suggests that language can manipulate others.A. Sentence 1 B. Sentence 3 C. Sentence 2 D. Sentence 4 Please help me. I'm struggling with my math using numerous computers to inundate and overwhelm the network from numerous launch points is called help me someone! giving brainliest Which of the following is(are) the solution(s) to |11x +3 = 6 ? Which lines from the passage present the most likely reason that theodoras attitude changes?. PLZZZ HELPPPWhat are the domain and range of f (x) = 1/2 (x+4)^2 - 11Domain: All real numbersRange: f(x) > -11Domain: 3 > -11Range: f(x) > -11Domain: All real numbersRange: All real numbersDomain: 2 > -11Range: All real numbers You have 2.567 grams of water. What is the volume of water(use correct units) which of the lobes of the brain contains the gustatory cortex? What mass of glucose (C6H12O6) should be dissolved in 12. 0 kg of water to obtain a solution with a freezing point of -5. 8 C?. how many people were killed in the 2005 indian ocean tsunami? define knowledge by judith butler A personal career profile form evaluates two sets of data, _____. A. Personal information and career information b. Personal values and personal interests c. Career information and career values d. Personal information and personality type Please select the best answer from the choices provided A B C D. Use this section to plan what you will write in the letter.Data Analysis Plant ranking:i need 7 sentences about plant ranking on plants by sand dunes please help me this is due in like 10 minutes i really need help i will give brainleist critical feminist theories need to pay more attention to intersectionality, which is Catullus' lyric poems illustrate the extreme emotions that people often feel in closerelationships. Give two emotions the speaker seems to experience and explain the causeof his feelings. Support your position by citing three specific lines from the poems asexamples. Were Federalists FOR or AGAINST ratification of theConstitution? Why?