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1. Combining the elemental gases, Hydrogen and Oxygen, to form the compound: water.

2H2↑ + O2↑ → 2H2O.

2. Combining Sodium hydroxide (a base) with Hydrochloric acid to form the 2 compounds: sodium chloride (a salt) and water.

NaOH + HCl → NaCl + H2O.

3. Combining Bismuth metal with Hydrochloric acid, in the presence of Oxygen, to form the 2 compounds: Bismuth trichloride (a salt) and water.

4Bi + 3O2 ↑+ 12HCl → 4BiCl3 + 6H2O

4. Combining Bismuth metal with liquid Bromine to form the compound: Bismuth tribromide (a salt).

2Bi + 3Br2 → 2BiBr3

5. Combining Sodium metal with water to form the compound: Sodium hydroxide, (a base), and releasing elemental Hydrogen gas.

2Na + 2H2O → 2NaOH + H2↑

6. The rusting of Iron, The natural combining of iron with oxygen to form the compound:

4Fe + 3O2↑ → 2Fe2O3

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13y ago
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11y ago

iron rusting

baking a cake

burning paper

bleaching your hair

soured milk

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15y ago

here's a start for you... anything involving a fire = chemical change anything involving a hammer pounding something = physical change

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13y ago

Melting, evaporating, dissolving, breaking, bending, stretching, shrinking,

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12y ago

A physical change occurs when some of the properties of a material change, but the substances in the material remain the same.

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9y ago

1. candle burning

2. milk spoiling

3. digestion

4. fermentation of sugar

5. mixing vinegar and baking soda

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5y ago

Physical changes: melting, freezing, vaporization, condensation, sublimation.
Chemical changes: oxidation, thermal degradation, polymerization, corrosion, fermentation.

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12y ago

pud phusi prechi poti nd proo

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11y ago

evaporation

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Q: Give 5 examples of physical and chemical change?
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Give you 2 examples of physical and chemical change with water?

CHEMICAL CHANGE1. Melting ice2. Boiling waterPHYSICAL CHANGE1. Baking a cake2. Burning wood


What is the difference between physical and chemical change give examples?

CHEMICAL CHANGE: Such change is a permanent change and substances go through such changes not only alter their outer shape but also change their composition. For example: conversion of milk into yoghurt is a chemical change PHYSICAL CHANGE: Such change is a temporary change and substances go through such changes alter their shape and volume only but composition remains same. For example: water changes into ice and ice melt to water is a physical change.


Is turning glow sticks on a chemical or physical change?

It is a chemical change because when you shake it and crack it, chemicals are released that give off a glow.


What changes of matter occur in respiration?

A change is said to be physical if no new substances are formed. Physical changes are temporary and can easily be reversed to give back the substances in their previous form. Freezing of water is an example of a physical change. A change is said to be chemical if new substances with different properties are formed. Chemical changes are permanent and cannot be reversed to give back the substances in their previous form. Burning of paper is an example of a chemical change.


Can chemical reactions have physical changes?

Physical changes do not change the kind of matter or its properties. Ex. cut a piece of paper and you sill have paper. Chemical changes cause the atoms to recombine and form new substances with different properties. Ex. burn wood, it isn't wood anymore, it is ash and smoke and heat energy. ASH wasn't there before burning.

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Alternate Wordings for 'What is chemical change and physical change and give its examples?

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i neeed 30 phiscal change and 100 chemical change got its boi?

give me 50 physical changes and 10o chemical change


Is burning a candle a chemical change or a physical change give reason?

It is both a physical and chemical change. The burning of the wick s chemical while the candle melting being physical.


What is meant by the term chemical change Give 2 examples?

A chemical change is a change that imply the change of the nature of molecules. Examples: neutralization of an acidic solution, thermal decomposition and generally all chemical reactions.


Give examples of chemical change?

explosion of fireworks,cooking an egg


Is food color is dropped into water to give it color a chemical change?

no, a physical change


Is cleaning a penny a chemical change or a physical change?

this is my homework just give the answer already!


Give you 2 examples of physical and chemical change with water?

CHEMICAL CHANGE1. Melting ice2. Boiling waterPHYSICAL CHANGE1. Baking a cake2. Burning wood


What is the difference between physical and chemical change give examples?

CHEMICAL CHANGE: Such change is a permanent change and substances go through such changes not only alter their outer shape but also change their composition. For example: conversion of milk into yoghurt is a chemical change PHYSICAL CHANGE: Such change is a temporary change and substances go through such changes alter their shape and volume only but composition remains same. For example: water changes into ice and ice melt to water is a physical change.


Give two examples of chemical changes?

1. Burning of paper 2. Vulcanizing of paper


Is turning glow sticks on a chemical or physical change?

It is a chemical change because when you shake it and crack it, chemicals are released that give off a glow.