Answers
The statement that describes the motion of the squirrel between 5s and 8s is as follows: The squirrel's speed did not change (option C).
What is a graph?A graph in mathematics and statistics is a data chart (graphical representation of data) intended to illustrate the relationship between a set (or sets) of numbers (quantities, measurements or indicative numbers) and a reference set, whose elements are indexed to those of the former set(s) and may or may not be numbers.
According to this question, a graph is used to illustrate the relationship between the distance moved by a squirrel and the time it took it to move i.e. the journey of squirrel for a certain interval or period of time.
Based on the graph above, the speed increased with time up until 5 seconds, however, from 5seconds till 8 seconds, the speed of the squirrel remained constant i.e. did not change until it picked up again.
Therefore, option C is the correct description of the situation of the squirrel between 5s to 8s.
The options to the incomplete question are as follows:
A. The squirrel's speed increased
B. The squirrel's speed decreased
C. The squirrel's speed did not change
D. The squirrel moved backward
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Related Questions
1. Which macromolecules would you need if... you need a quick boost of
energy?
Answers
Answer:
\(\boxed {\tt Carbohydrate \ or \ monosaccharides}\)
Explanation:
There are 4 main types of macromolecules: lipids, proteins, carbohydrates, and nucleic acids.
If you are looking for some quick energy, the best choice is carbohydrates. Carbohydrates are the easiest for the body to break down and turn into ATP/energy.
There are also different types of carbohydrates. If you want a more specific answer, monosaccharides is the best answer. They are the simplest sugars. Also, glucose is a monosaccharide, and it shows up directly in the cellular respiration formula. If glucose is consumed, the body doesn't have to break it down before starting respiration.
prop-1-yne + 2HBr/H2O2 = A;
A + 2H2O = B;
B + K2CO3(aq) = C;
C + heat = D;
D + HBr = E.
find the compounds A, B, C, D and E
Answers
Based on the given reactions, the compounds are as follows:
A: The specific product formed from the reaction between prop-1-yne and either 2HBr or H2O2.
B: The product formed when compound A reacts with 2H2O.
C: The product formed when compound B reacts with K2CO3(aq).
D: The product formed from the heat-induced reaction of compound C.
E: The product formed when compound D reacts with HBr.
Based on the given reactions, let's analyze the compounds involved:
Reaction 1: prop-1-yne + 2HBr/H2O2 = A
The reactant prop-1-yne reacts with either 2HBr or H2O2 to form compound A. The specific product formed will depend on the reaction conditions.
Reaction 2: A + 2H2O = B
Compound A reacts with 2H2O (water) to form compound B.
Reaction 3: B + K2CO3(aq) = C
Compound B reacts with K2CO3(aq) (potassium carbonate dissolved in water) to form compound C.
Reaction 4: C + heat = D
Compound C undergoes a heat-induced reaction to form compound D.
Reaction 5: D + HBr = E
Compound D reacts with HBr (hydrobromic acid) to form compound E.
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A unimolecular elementary step involves only a single reactant that breaks apart.a) trueb) false
Answers
Answer:
True
Explanation:
The correct option is; True.
Unimolecular elementary steps in a reaction requires only one reactants, they are usually decomposition reactions. They take the general form;
A --> B + C
what particular distribution you share in earth?
Answers
Answer:
trees
Explanation:
we plant trees hindi sure kung tama to hihi
Which of the following is an incorrect representation for a neutral atom?
36Li
613C
3063Cu
1530P
Answers
This representation suggests that the element is phosphorus (P) with a mass number of 30, which is incorrect. The correct mass number for phosphorus is approximately 30.97. The incorrect representation for a neutral atom is 36Li
To determine the correct representation for a neutral atom, we need to consider the atomic number (Z) and mass number (A) of the element. The atomic number represents the number of protons in the nucleus, while the mass number represents the sum of protons and neutrons.
Let's analyze the given representations:
36Li:
This representation suggests that the element is lithium (Li) with a mass number of 36, which is incorrect. The correct mass number for lithium is approximately 6.94.
613C:
This representation suggests that the element is carbon (C) with a mass number of 13, which is correct. Carbon has different isotopes, and 13C represents one of its stable isotopes.
3063Cu:
This representation suggests that the element is copper (Cu) with a mass number of 63, which is correct. Copper has different isotopes, and 63Cu represents one of its stable isotopes.
1530P:
This representation suggests that the element is phosphorus (P) with a mass number of 30, which is incorrect. The correct mass number for phosphorus is approximately 30.97.
Therefore, the incorrect representation for a neutral atom is 36Li, as it does not match the known properties of lithium.
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Magnesium hydroxide reacts with chlorine to form magnesium chloride,
magnesium chlorate and water. How many grams of magnesium hydroxide is
needed to yield 8.00 moles of magnesium chlorate?
77.8 g Mg(OH)2
9178.1 g Mg(OH)2
2799.6 g Mg(OH)2
.823 g Mg(OH)2
How many grams of sodium sulfato pro
Answers
The grams of magnesium hydroxide needed to yield 8.00 moles of magnesium chlorate is approximately 466.64 g. None of the options provided match the calculated value of 466.64 g.
To determine the grams of magnesium hydroxide (Mg(OH)2) needed to yield 8.00 moles of magnesium chlorate (Mg(ClO3)2), we need to consider the balanced chemical equation for the reaction between magnesium hydroxide and chlorine.
The balanced equation is as follows:
2 Mg(OH)2 + 6 Cl2 → 2 Mg(ClO3)2 + 2 H2O
From the balanced equation, we can see that 2 moles of Mg(OH)2 react with 6 moles of Cl2 to produce 2 moles of Mg(ClO3)2.
Therefore, the stoichiometric ratio is 2 moles of Mg(OH)2 : 2 moles of Mg(ClO3)2.
To calculate the grams of Mg(OH)2 needed, we can use the stoichiometric ratio and the given moles of Mg(ClO3)2.
Given:
Moles of Mg(ClO3)2 = 8.00 moles
Using the stoichiometric ratio, we have:
8.00 moles Mg(ClO3)2 × (2 moles Mg(OH)2 / 2 moles Mg(ClO3)2) = 8.00 moles Mg(OH)2
To convert moles to grams, we need to multiply by the molar mass of Mg(OH)2.
The molar mass of Mg(OH)2 = (24.31 g/mol) + (2 * 16.00 g/mol) = 58.33 g/mol
Grams of Mg(OH)2 = 8.00 moles Mg(OH)2 × 58.33 g/mol = 466.64 g
Therefore, the grams of magnesium hydroxide needed to yield 8.00 moles of magnesium chlorate is approximately 466.64 g.
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Current Attempt in Progress
How many total and how many valence electrons are in the following neutral atom?
fluorine (F)
Total electrons:
Valence electrons:
Answers
Total electrons in fluorine (F): 9. Valence electrons in fluorine (F):7.
The element fluorine (F) is located in the periodic table in Group 17, also known as Group VIIA or the halogens. Fluorine has an atomic number of 9, indicating that it contains 9 electrons in its neutral state.
To determine the total number of electrons in a neutral atom of fluorine, we refer to its atomic number, which corresponds to the number of protons and electrons in an atom. Thus, fluorine has a total of 9 electrons.
Valence electrons are the electrons in the outermost energy level, also known as the valence shell, of an atom. For fluorine, the valence electrons are found in the second energy level, specifically in the 2p orbital. Since the second energy level can accommodate a maximum of 8 electrons, fluorine has 7 valence electrons.
Valence electrons play a crucial role in chemical bonding and determining the reactivity of an element. In the case of fluorine, its 7 valence electrons make it highly reactive, as it only needs one additional electron to achieve a stable, full outer electron configuration of 8 electrons. This strong desire to gain an electron makes fluorine one of the most electronegative elements on the periodic table.
In summary, a neutral atom of fluorine (F) has a total of 9 electrons, with 7 of them being valence electrons located in the 2p orbital.
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Stamples of heterogeneous equilibria. FeO(s) + CO(g) = Fe(s) + CO₂(g) II. H₂(g) L₂(g) = 2HI(g) III. CO₂(g) + C(s) = 2CO(g) IV. N₂(g) 3H₂(g) + 2NH3(g) Identify I.
Answers
An example of heterogeneous equilibrium is:
I. FeO(s) + CO(g) ⇌ Fe(s) + CO₂(g)What is heterogeneous equilibrium?Heterogeneous equilibrium refers to an equilibrium state in a chemical reaction where the reactants and products exist in different physical states or phases. It occurs when substances in different phases, such as solids, liquids, and gases, are involved in a chemical reaction.
Considering the given equations:
The equation I: FeO(s) + CO(g) ⇌ Fe(s) + CO₂(g) represents a heterogeneous equilibrium.
This is because the reactants and products involve different phases (solid and gas). FeO is a solid (s), CO is a gas (g), Fe is a solid (s), and CO₂ is a gas (g). The reaction involves the conversion of a solid and a gas to another solid and a gas, and the equilibrium is established between these different phases.
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Name a specific kind of scientist and discuss how they use rulers to measure distance with accuracy.
Answers
A metric ruler, meterstick, or measuring tape are common tools used by scientists to gauge distance. Small things' lengths are measured in centimetres and millimetres. Meters and kilometres are used to measure longer distances.
What is a ruler ?When measuring length in science, a metric ruler and SI units like millimetres and centimetres can be used. A balance, such as an electronic balance or a triple beam balance, is used by scientists to quantify mass. In science, a graduated cylinder may be used to gauge the volume of a liquid.
The measurement of length is done with rulers in both mathematics and science. They may be used by scientists to record precise observations during an experiment, such as the rate of plant development.Learn more about Ruler here:
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Which of the following makes sense to round to the nearest 10?
A. Your friend's telephone number
B. The PIN code of your city or town
C. The number of pages in your Maths book
D.t he year of your birth
Answers
Answer:
C
Explanation:
You can’t round a phone number or Pin code
why would you round your birth year?
Makes the most sense, you cannot round a phone number, your birth year, or a pin code
A small amount of chemical splashes in Frank’s eye. What should Frank do immediately?
Answers
Answer:
A small amount of chemical splashes in Frank's eye. What should happen next? Frank should go to the eyewash station while his lab partner tells the teacher what happened.
Explanation:
Brainlist
Hydrogen = odorless, colorless, and tasteless (so it's undetectable to human senses) but highly flammable and used in jet fuel
Directions:
Identify another chemical reaction that is important to your daily life. (Hint: THIS
Answers
One important chemical reaction in our daily life is the process of cellular respiration, which occurs in living organisms to produce energy in the form of ATP.
The reaction involves the breakdown of glucose, a type of sugar, into carbon dioxide and water, and the release of energy in the process. The general equation for cellular respiration is,
\(C_{6} H_{12} O_{6}\) + \(6O_{2}\) → \(6CO_{2}\) + \(6H_{2}O\) + energy (ATP)
This reaction occurs continuously in our cells, providing the energy needed for various cellular activities and bodily functions. Without cellular respiration, we would not be able to survive.
Another important application of chemical reactions in daily life is in the production of food. Cooking food involves various chemical reactions, including the breakdown of complex carbohydrates and proteins into simpler molecules, the caramelization of sugars, and the Maillard reaction between amino acids and reducing sugars. These reactions help to create the flavor, aroma, and texture of the food we eat.
In addition, chemical reactions are also used in the production of many consumer products, such as cleaning agents, cosmetics, and pharmaceuticals. The chemical reactions involved in these products are carefully designed and controlled to ensure their effectiveness and safety for use.
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The volume of a 1.00-mole sample of an ideal gas will decrease when the
1.
pressure decreases and the temperature decreases
2.
pressure decreases and the temperature increases
3.
pressure increases and the temperature decreases
4.
pressure increases and the temperature increases
Answers
Answer:
The correct option is (3).
Explanation:
The ideal gas equation is given by :
\(PV=nRT\\\\V=\dfrac{nRT}{P}\)
The pressure of ideal gas is directly proportional to temperature and inversely proportional to its volume.
We can say that the volume of a 1.00-mole sample of an ideal gas will decrease when the pressure increases and the temperature decreases.
The volume of the idea gas decrease when pressure increases and the temperature decreases. Thus option C is correct.
The ideal gas equation can be given as:
PV = nRT
The equation in terms of pressure and temperature when n=1 can be written as:
Volume = \(\rm \dfrac{RT}{P}\)
Accordingly, the volume has been directly proportional to the temperature and has been inversely proportional to the pressure.
Thus, with the decrease in volume, there has been an increase in pressure and a decrease in temperature.
Thus, option C is correct.
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explain why d-block and transition metal should not be used interchangeably ?
Answers
Answer:
The d-block and transition metal are not interchangeable terms because the d-block elements are a subset of the transition metal elements. The transition metals are defined as the elements that have partially filled d orbitals, which includes the d-block elements as well as other elements that have partially filled d orbitals in other blocks, such as lanthanides and actinides. Therefore, while all d-block elements are transition metals, not all transition metals are d-block elements.
15.27
The following equilibria were attained at 823 K:
COO(s) + H2() Co(s) + H2O(g) K = 67
COO(s) + CO(8) = Co(s) + CO2(8) K = 490
Based on these equilibria, calculate the equilibrium con-
stant for
H2(g) + CO2(g) = CO(g) + H2O(g) at 823 K.
Answers
The equilibrium constant for the reaction is K = 0.137
We obtain the equilibrium constant considering the following equilibria and their constants:
COO(s) + H₂(g) → Co(s) + H₂O(g) K₁ = 67
COO(s) + CO(g) → Co(s) + CO₂(g) K₂ = 490
We write the first reaction in the forward direction because we need H₂(g) in the reactants side:
(1) COO(s) + H₂(g) → Co(s) + H₂O(g) K₁ = 67
Then, we write the second reaction in the reverse direction because we need CO₂(g) in the reactants side. Thus, the equilibrium constant for the reaction in the reverse direction is the reciprocal of the constant for the reaction in the forward direction (K₂):
(2) Co(s) + CO₂(g) → COO(s) + CO(g) K₂ = 1/490
From the addition of (1) and (2), we obtain:
COO(s) + H₂(g) → Co(s) + H₂O(g) K₁ = 67
+
Co(s) + CO₂(g) → COO(s) + CO(g) K₂ = 1/490
-------------------------------------------------
H₂(g) + CO₂(g) → CO(g) + H₂O(g)
Notice that Co(s) and COO(s) are removed that appear in the same amount at both sides of the chemical equation.
Now, the equilibrium constant K for the reaction that is the sum of other two reactions is calculated as the product of the equilibrium constants, as follows:
K = K₁ x K₂ = 67 x 1/490 = 67/490 = 0.137
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NCl3 + 3H20 - NH3 + 3HCIO
How many grams of ammonia can be produced from 1.33 grams of nitrogen trichloride?
Answers
Answer:
0.189 g
Explanation:
Step 1: Write the balanced equation
NCl₃ + 3 H₂O ⇒ NH₃ + 3 HCIO
Step 2: Calculate the moles corresponding to 1.33 g of NCl₃
The molar mass of NCl₃ is 120.36 g/mol.
1.33 g × 1 mol/120.36 g = 0.0111 mol
Step 3: Calculate the moles of NH₃ produced from 0.0111 moles of NCl₃
The molar ratio of NCl₃ to NH₃ is 1:1. The moles of NH₃ produced are 1/1 × 0.0111 mol = 0.0111 mol.
Step 4: Calculate the mass corresponding to 0.0111 moles of NH₃
The molar mass of NH₃ is 17.03 g/mol.
0.0111 mol × 17.03 g/mol = 0.189 g
a scoop of frozen yogurt has in place on top of a warm paste tree look at what's happening to the frozen yogurt what form of energy is causing a change in the frozen yogurt
A.light energy
B. chemical energy
C. heat energy
D. electrical energy
Answers
Answer:
heat energy :D
Explanation:
describe manganese as oxidizing agent
Answers
Answer:
See explanation
Explanation:
A reducing agent in chemistry is any substance that accepts electrons and its oxidation number is decreased in a redox reaction.
Manganese occurs in a variety of oxidation states; +7, +6, +5, +4, +3, +2. This makes it an exceptionally good reducing agent since it can accept different number of electrons and change from one oxidation state to another.
The commonest compound of manganese used as a strong oxidizing agent is KMnO4 in which manganese has an oxidation number of +7.
list another topic (not in chemistry or physics) that also uses the word quantum as part of the description. explain what you know about the topic and why you chose it.
Answers
Answer:
explanation pls need lang
QUESTION 1 When a colourless substance is heated in a test tube, the crystals become powdery. There are no condensations or other visible changes inside the test tube. After cooling the mass of the contents of the test tube decreases. The most likely explanation of these observation is that, on heating the Which answer is this? A. B. C. D. crystals lose water. crystals react with air. crystals give off a colourless gas. substance remains unchanged but decreases in mass because it is in powder form.which one ia an answer?
Answers
The most likely explanation for the given observations is that the crystals lose water when heated, resulting in a transition from crystals to a powdery substance and a decrease in mass after cooling. Option A
When certain substances contain water molecules as part of their crystal structure, heating them can cause the water molecules to evaporate, leading to the loss of water. This can result in a change in the physical properties of the substance, such as a transition from crystalline to powdery form.
The absence of condensation or other visible changes inside the test tube suggests that the substance is not reacting with the air or giving off a colorless gas. If such reactions were occurring, there would likely be observable changes or reactions taking place.
The decrease in mass after cooling can be attributed to the loss of water molecules. Water has mass, and when it evaporates, it escapes from the test tube, causing a reduction in the overall mass of the substance.
Option A
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HQ5.40
Homework Answered Due Today, 11:59 PM
The reaction 3H₂(g) + N₂(g) → 2NH3(g) has an enthalpy of reaction of -92.6 kJ/mol. If 1 g of hydrogen and 2 g of nitrogen are
reacted, how much heat is produced (kJ)?
Answers
The amount of heat energy produced when 1 g of hydrogen and 2 g of nitrogen are reacted, is -6.61 KJ
How do i determine the heat energy produced?First, we shall obtain the limiting reactant. Details below:
3H₂ + N₂ -> 2NH₃
Molar mass of N₂ = 28 g/molMass of N₂ from the balanced equation = 1 × 28 = 28 g Molar mass of H₂ = 2 g/molMass of H₂ from the balanced equation = 3 × 2 = 6 gFrom the balanced equation above,
28 g of N₂ reacted with 6 g of H₂
Therefore,
2 g of N₂ will react with = (2 × 6) / 28 = 0.43 g of H₂
We can see that only 0.43 g of H₂ is needed in the reaction.
Thus, the limiting reactant is N₂
Finally, we the amount of heat energy produced. Details below:
3H₂ + N₂ -> 2NH₃ ΔH = -92.6 KJ
Molar mass of N₂ = 28 g/molMass of N₂ from the balanced equation = 1 × 28 = 28 gFrom the balanced equation above,
When 28 grams of N₂ reacted, -92.6 KJ of heat energy were produced.
Therefore,
When 2 grams of N₂ will react to produce = (2 × -92.6) / 28 = -6.61 KJ
Thus the heat energy produced from the reaction is -6.61 KJ
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Is SiO2 London Dispersion, Dipole-Dipole, or Hydrogen Bonding?
Answers
Answer: SiO2 has more electrons and stronger London dispersion forces.
SiO2 is non-polar and has covalent bonds.When Sam plays online video games with other people he makes sure to avoid offensive language play by the rules his gaming group established and help other players have a good time. Sam is being a good digital citizen by following a code of
Answers
"Sam is being a good digital citizen by following a code of conduct.
A code of conduct is a set of rules that govern how people should behave online. It is important to follow a code of conduct because it helps to create a safe and respectful environment for everyone.
Here, Sam is following the code of conduct for his gaming group. This code of conduct may include rules about using offensive language, cheating, and griefing. By following these rules, Sam is helping to create a positive experience for everyone in his gaming group.
Therefore, Sam is following the code of conduct.
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A vial of Ancef 1 g is reconstituted with 5 mL of normal saline to yield 125mg / m * L How many mL of the medication should be given if a patient is prescribed 250 mg of the medication?
Answers
Ancef (Cefazolin) is a first-generation cephalosporin antibiotic that is used to treat bacterial infections. Cefazolin is available in several formulations, including injectable, intravenous, and powder for injection.
A vial of Ancef 1 g is reconstituted with 5 mL of normal saline to yield 125mg / m * L. We need to determine how many milliliters of the medication should be given if a patient is prescribed 250 mg of the medication.To begin with, let us first calculate the concentration of the reconstituted solution using the given data.1 gram of Ancef (Cefazolin) = 1000 milligrams (mg)5 mL of normal saline = 5000 milligrams (mg)Therefore, the total volume of the reconstituted solution = 5 mL + the volume of Ancef (Cefazolin)1 g of Ancef (Cefazolin) = 125 mg/mL (Given)Therefore, the volume of Ancef (Cefazolin) = (250 mg)/(125 mg/mL) = 2 mLTherefore, the total volume of the reconstituted solution = 5 mL + 2 mL = 7 mLThus, the amount of medication that should be given to the patient is 2 mL.For such more question on antibiotic
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Which actions can be taken to plan for a drought check all that apply
Answers
Answer:
Can you attach a picture?
Explanation:
What happens when KCl is dissolved in water?
1.
KCI is the solute in a homogeneous mixture.
2.
KCl is the solute in a heterogeneous mixture.
3
KCI is the solvent in a homogeneous mixture.
4.
KCI is the solvent in a heterogeneous mixture.
Answers
Answer:
KCI is rhe solute in a homogeneous mixture
Answer:
1. KCI is the solute in a homogeneous mixture.
Explanation:
Which characteristic BEST identifies a pure substance?
a. shape
b. texture
c. melting point
d. state of matter
Whoever helps I will give BRAINLIEST
Answers
according to the spectrochemical series, which of the following ligands has the strongest splitting field?
Answers
The increasing order of the crystal field splitting- I− < Br− < S2− < SCN− < Cl−< N3 < F−< NCO−< OH−<C2O42−< O2−< H2O < acac− < NCS− < CH3CN <gly <py < NH3 < en < bipy < phen < NO2− < PPh3 < CN− < CO.
Describe the spectrochemical sequence.The ligands (affections to a metal ion) are listed in the spectrochemical series according to the strength of their field. The series was created by superimposing various sequences acquired from spectroscopic research because it is impossible to generate the full series by examining complexes with the single metal ion.
Which ligands in the spectrochemical series are strong field ligands?The ligands cyanide and CO are classified as strong-field ligands, whereas the halides are weak-field ligands. Ligands such as water and ammonia are said to create medium field effects.
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What is the molar concentration of Zn2+ ions in a solution, if the electrode potential value is 59mV less than the standard electrode potential value at 298 K?
Answers
Molar concentration of Zn2+ions in a solution is 3.481 mol/lit
The electrode potential value is 59mV
Temperature=298k
What is electrode potential?
It is a force of galvanic cell. basically it is the difference between an electrolyte and electrode.equation formed- Zn → Zn2+ + 2e
from Nernst equation-
E=E cell - 0.059 log [Zn2+]
[zn2+]=3.481 mol/lit
hence, Molar concentration of Zn2+ions in a solution is 3.481 mol/lit
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In this lab, you will do experiments to identify types of changes. Using the question format you learned (shown above), write an investigative question that you can answer by doing these experiments. Lab question: How can you distinguish a physical change from a chemical change?
Answers
Answer:
a physical change does not change the composition (what it's made of) as a chemical change would.
Physical changes are differentiated from the chemical changes by means of the state of the substance which is obtained after the change.
What are physical changes ?Physical changes are defined as changes which affect only the form of a substance but not it's chemical composition. They are used to separate mixtures in to chemical components but cannot be used to separate compounds to simpler compounds.
Physical changes are always reversible using physical means and involve a change in the physical properties.Examples of physical changes include melting,boiling , change in texture, size,color,volume and density.Magnetism, crystallization, formation of alloys are all reversible and hence physical changes.
They involve only rearrangement of atoms and are often characterized to be changes which are reversible.
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