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ANSWER:

beacouse PURE metsl are GOOD conductet of HEAT and ELECTRICITY

PHOSPHOROUS because it is very REACTIVE and can PRODUCE heat.

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ANSWER:

they are WEAK bases

Explanation:

Answer:

yes OXIDATION and reduction in ALUMINIUM is hydrochloric ACID

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:

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it tells us about the CHEMICALS INVOLVED in the FORMATION of REACTANT and product.

ANSWER:

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Answer:

The holes FORMED in an iron container CONTAINING copper sulphate are due to displacement reaction of copper in the copper sulphate solution by the iron (the material of the container).

Explanation:

The iron reacts with the copper sulphate solution to displace the copper in the solution to form iron sulphate.

This chemical reaction is known as a single displacement reaction.

The chemical equation for this reaction is as follows:

               3CuSO₄ + 2Fe     →   Fe₂(SO₄)₃ + 3Cu

Iron is more reactive than copper and this is the reason why iron displaces copper in the copper sulphate solution.

This is the reaction that is used in EXTRACTION of copper.

The iron in the container displaces the copper in the solution and thus it will 'dissolve' in the solution LEAVING holes in the container.

Find attached the reactivity series of different METALS that will help you predict the reaction of chemical compounds (metal salts with metals or with other metal salts).

ANSWER:

IUPAC - pent-1,4 DIENE

ANSWER:

I thiks that LIQIUDS DONOT have

Answer:

Effusion

Not only do gaseous particles move with high kinetic energy, but their small size enables them to move through small OPENINGS as well; this process is known as effusion. For effusion to occur, the hole’s diameter must be smaller than the molecules’ mean free path (the average distance that a gas particle travels between SUCCESSIVE collisions with other gas particles). The opening of the hole must be smaller than the mean free path because otherwise, the gas could move back and forth through the hole.

Effusion is EXPLAINED by the continuous random motion of particles; over time, this random motion guarantees that some particles will eventually pass through the hole.Diffusion

The kinetic theory describes a gas as a large number of submicroscopic particles (atoms or molecules), all of which are in constant RAPID motion that has randomness arising from their many collisions with each other and with the walls of the container.

Diffusion refers to the process of particles moving from an area of high CONCENTRATION to one of low concentration. The rate of this movement is a function of temperature, viscosity of the medium, and the size (mass) of the particles. Diffusion results in the gradual mixing of materials, and eventually, it forms a homogeneous mixture.

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ANSWER:

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Answer:

you make a SCRAP book and decorate it and write down PLANT KINGDOM and animal kingdom describe it in scrab book

Explanation:

dont learn just a trick ( few exceptions)

if the ATOMIC NUMBER is ODD *2 +1

and if it is EVEN *2

ANSWER:

REPLACE OH GROUP with CHO group.

ANSWER:

VALENCY of COPPER is 2+

valency of CARBONATE is 1-

Explanation:

Explanation:

(III) P4 + 6Cl2. 4PCl3 ... (ii) Copper SULPHATE crystals are dehydrated by CONCENTRATED sulphuric acid. .... YELLOW whe Hot and white when.

Although METALS are supposed to be GOOD conductors of electricity and heat,metals like mercury, lead, alloys of iron and chromium, titanium and stainless steel are poor conductors when compared to silver, COPPER and GOLD.

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ANSWER:

There is a time capital to for a few PEOPLE from all to WORK SEE you and

because the INTERMOLECULAR INTERACTIONS between ATOMS are very more so we can't mold it.

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ANSWER:

OXYGEN for respiration , nitrogen in ATMOSPHERE , METHANE in gas cylinder etc ....

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The PHYSICAL PROPERTIES of a matter can be changed by:-

1. Increasing or DECREASING the temperature.

2. Increasing the pressure.

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Answer:

We are looking at the difference between elements, compounds, and mixtures. Elements are the purest form of a chemical substance and are composed of only one TYPE of atom. In other words, all of the atoms in an element will have the same number of protons. Please note that a chemical composed of two or more of the same type of element (H2, O2, etc.) are also considered elemental forms as well.

A chemical compound is a chemical that is composed of at LEAST two different types of elements. These elements are combined together in fixed proportions and structures to produce a single type of unique particle. LIKE an element, a compound is considered a PURE substance (meaning there is only one type of particle in the substance).

A mixture is a combination of two or more different chemical compounds or elemental substances. It is not a pure substance, but a combination multiple particles. It can be separated into different type of particles. There are two different types of mixtures, homogeneous and heterogeneous. In heterogeneous mixtures, you can see the two different types of substances with your eye. In homogeneous mixtures, you cannot see the two different substances (they appear as a single PHASE to the eye).

ANSWER:

Phenyl diazonium chloride is obtained FIRST by the diazotization of ANILINE with nitrous ACID as explained ... diazotization and coupling reactions are REQUIRED to be carried out between

ANSWER:

CHECK it once.........

ANSWER:

CH4

Explanation:

Answer:

The elements in the alkaline EARTH metals group; beryllium (Be), magnesium (MG), calcium (Ca), strontium (Sr), BARIUM (Ba), and radium (Ra), have two electrons in their outer ELECTRONIC shell.

Explanation:

WOODEN table is a SOLID

Answer:

REACTIVITY SERIES of metals is the arrangement of metals in the decreasing ORDER of the reactivity.

copper is more REACTIVE than gold.

Explanation:

Answer:

The correct answer is -  There are '6' identical CR - O BONDS in the dichromate ion (Cr₂O₇⁻²).

In a dichromate ion Cr₂O₇⁻², there are 6 TERMINAL Cr – O bonds. All these bonds are EQUIVALENT due to resonance.

The Dichromate ions (Cr₂O₇⁻²) are oxoanions of chromium in the oxidation state +6.

Explanation:

Answer:

NEUTRAL

Explanation:

The charge of the ionic compound is usually neutral. Their charge can be determined BASED on what these ionic COMPOUNDS are. The cation is positively charged while the ANION is negatively charged.

Ionic compounds in the form of metals will usually lose some electrons in order to become positively charged. The non-metals usually accept the electrons so they become anions or they become negatively charged.

Take note that the net charge of ionic compounds are always zero. Atoms usually start out to be neutral and slowly gain charge depending on the other atoms that they react with.

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Answer:

2chloropropane.

EXPLANATION:

halogen is in the 2ND position.and there is 3carbon ATOMS.. so propane is used

ANSWER:

3×10-8=30-8=22 answer

you will observe that the TEMPERATURE of the beaker rises as the reaction is exothermic.

the product FORMED is calcium hydroxide.its FORMULA is Ca(OH)2

Explanation:

When heated it will decompose to form carbon DIOXIDE and calcium oxide. ... When water is ADDED to calcium oxide the RESULTS is an exothermic reaction (heat GIVEN off) as the water hydrates the oxide to form a hydroxide by a process of slaking.

PLEASE COMPLETE the QUESTION.

YES POLYETHYLENE and POLYPROPYLENE are THERMOPLASTIC

Answer:

based on TEMPERATURE there will be two reactions between SULPHURIC ACID and soudium nitrate

1.) if TEMP < 200 degrees

NaNO³ + H2SO⁴ →NaHSO⁴ + HNO³

2.) if temp > 200 degrees

NaNO₃ + H2SO₄ → Na2SO₄ + HNO₃

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chloropropane is the answer

as there are 3 carbons-prop

as there single bonds-ane

we have write SUBSTITUENT(CL) at 1st.

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draw a few crystals of potassium per magnet into a glass TUMBLER containing both water and other crystals in other glass tumbler containing COLD water do not stire the solution and allowed the crystals of potassium permanganate to settle down.wait for sometimesboth the solutions become purple in colour but the solution containing potassium per magnet in hot water becomes purple at a faster rate .

CONCLUSION: since particles of matter are continuously moving their PROCESSES kinetic ENERGY as the temperature increase particles move faster this shows that kinetic energy and the rate of diffusion increases with the increase in the temperature

the particles of potassium permanganate and water move in opposite directions

the particles of potassium permanganate are purple in colour they spread throughout the water And the solution becomes purple in fact the particles of potassium per magnet enter into the space between the particles of water

BASE FOODS:

1. Vegetables

2. Salad

3. Fruits

4. Herbs

5. Potatoes

6. Soy PRODUCTS

ACID FOODS:

1. Meat

2. Sausages

3. Fish

4. Poultry

5. Eggs

6. Dairy products

NEUTRAL FOODS:

1. OILS

2. Butter

3. Some nut varieties

4. Water

Foods, creating acids in the metabolism are:

1. Sugar and sweets

2. Pasta

3. Rice

4. Coffee

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IUPAC NAME is chloropropane

as there are 3carbons-propane

as there are SINGLE bonds-ane

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EXPLANATION:

Take about 25ml of distilled water in a BOILING tube and add 2-3 small pieces of pumice STONE. 1.Close the MOUTH of the boiling tube with a rubber cork that has two bores and clamp it with the stand. 2.Introduce a THERMOMETER (temperature range -10 to 110°C) in one bore of the cork of the boiling tube

Answer:Respiration is an EXOTHERMIC reaction.

Explanation: It is exothermic because in this reaction heat is RELEASED ALONG with water and CARBON dioxide.

Answer:

63.0

Explanation:

The GRAM equivalent mass of HNO3 is 63.0.

=Mass of hydrogen +Mass of NITROGEN +(Mass of OXYGEN)*3

=1+14+48

=63

When EVAPORATION occurs then than the liquid (MOSTLY water) absorbs all the heat from the surroundings and take it with it and we FEEL cool. evaporation causes cooling effect because the heat energy is abosorbed by surrounding PARTICLES.

Explanation:

A SOLVENT is a LIQUID that dissolves a solid, liquid or GASEOUS SOLUTE. A SOLUTE is a substance dissolved in another substance. A solute and a solvent make up a SOLUTUON. ... Water is the solvent and the salt is the solute and together they make a salt (saline) solution.

In THINK phenol is easily NITRATED because the STABILITY of benzene is more than phenol so benzene don't MAKE bond easily as compared to phenol.

Explanation:

The octahydrate is produced by treating sodium HYDROXIDE with hydrogen PEROXIDE. Sodium peroxide can be prepared on a LARGE scale by the reaction of metallic sodium with OXYGEN at 130–200 °C, a process that generates sodium oxide, which in a separate stage absorbs oxygen: 4 Na + O2 → 2 Na2O.

ANSWER:

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