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EXPLANATION:

Crbohydrates GIVE US ENERGY

Answer:

EXPLANATION:

The main difference between sulfate and sulfite is that, sulfate is composed of FOUR OXYGEN atoms bonded to a SULFUR atom WHEREAS sulfite is composed of three oxygen atoms bonded to a sulfur atom.

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ANSWER:

plastics REDUCE the weight of cars

Plastics and polymers contribute to the SAFETY of cars

Plastics help to lower car manufacturing costs.

Polymers ADVANCE the design of vehicles.

Answer:

Plastic Chemical Storage

Storing a chemical in the right container is the FIRST way to ensure safety when handling strong acids and bases. ... This is why there are a VARIETY of plastic MATERIALS used for storing acids and bases – so that each container can accommodate the unique properties of individual chemicals.

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ANSWER:

Among the 4,silver is the most malleable....

N the most malleable METAL is GOLD.....

Answer:

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Explanation:

Rayon is used in FABRICS, home furnishing and industrial applications. The FABRIC is used to create clothing such as blouses, jackets, SPORTSWEAR and dresses. 2. Variation of luster: nylon has the ability to be very LUSTROUS, semilustrous or dull.

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Answer:

Diffusion is the PROCESS in which a DROP of ink spreads in a beaker of WATER

ANSWER:

answer C is CORRECT ONE

ANSWER:

when the wax of candle is heated it gets MELTED

Answer:

Because the extra heat which is applied for increase in temperature is USED to change the state of matter that is why temperature remains constant.

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ANSWER:

because the ROOM TEMPERATURE is WARM

Answer:

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Explanation:

No extent of absorption of water is not same for all kind of soils.

For example clayey soil has greater absorption capacity than SANDY soil.

This extent of absorption depends on SIZE POROSITY permeability of the soil particles.

ANSWER:

A)Aeration.

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ANSWER:

Domestic households, industrial and AGRICULTURAL PRACTICES

EXPLANATION:

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ANSWER:

COMBUSTION of most FUELS releases carbon dioxide in the environment. ... Burning of coal and diesel RELEASE sulphur dioxide gas. It is an extremely suffocating and corrosive gas. Sulphur dioxide and NITROGEN oxide dissolve in rain water to form acid.

Explanation:

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coli, Salmonella, Shigella, CHEMICAL agents, hepatitis A virus, norovirus, GIARDIA, and other agents.

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Answer:

Explanation:

Elements have been classified for the identification and because of there different NATURE

Noble gases has zero valency because of their complete octet .

Metal show positive valency as they donate electron s and NON metals accept so they have negative valency

Mercury is a metal which is PRESENT in liquid form can RISE and fall easily

All element are not pure some are found in nature in pure state and cannot react with any SUBSTANCE

Answer:

Explanation:

Polyethylene terephthalate (sometimes written poly(ETHYLENE terephthalate)), COMMONLY abbreviated PET, PETE, or the obsolete PETP or PET-P, is the most common thermoplastic polymer resin of the polyester family and is USED in fibres for CLOTHING, containers for liquids and foods, thermoforming for manufacturing

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EXPLANATION:

because it is FLEXIBLE SOLID

Answer:

It is easier to sip hot tea or milk faster from a saucer rather than from a cup because of evaporation . ... And evaporation causes cooling. So if the SURFACE AREA is more rate of evaporation is faster and so is the cooling rate. Hence we are able to sip hot tea or milk faster from a saucer rather than from a cup.

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Answer:

The term saturated solution is used in chemistry to DEFINE a solution in which no more solute can be dissolved in the solvent. It is understood that saturation of the solution has been achieved when any additional substance that is ADDED RESULTS in a solid precipitate or is let off as a gas.

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Explanation:

Electro NEGATIVITY increases from BOTTOM to top in groups

and INCREASE from left to RIGHT in periods

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ANSWER:

it will be in the STATE of ICE

ANSWER:

aparisram .............

ANSWER:

(C) crystsl radius is used for metals

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HEY MATE

OPTION a)PLASTIC is ✔✔✔

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nothing happens

because the DIGESTIVE ENZYMES inside it is not enough ACIDIC to digest our fingers

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Explanation:

option C and d are correct

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Answer:

the molecular orbital electronic configuration of homeonuclear diatomic molecule H2. THEREFORE there is a COVALENT bond between the two hydrogen atom. the bond dissociation energy of hydrogen molecular is 438 KJ mol-1 and bond length equal to 74 pm

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Explanation:

VANDERWAAL's > metalic > covalent .

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ANSWER:

CS is your answer

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ANSWER:

Answer is third option....because RATIO of Hydrogen and OXYGEN librated is 2:1....

Answer:

NANO METER.

Explanation:

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ANSWER:

To convert Celsius to Kelvin, add 273.15 to the Celsius value.

For example, to convert 30 Celsius to Kelvin, add 273.15 to 30, that makes 30 Celsius is equal to 303.15 Kelvin.

Kelvin = Celsius + 273.15

For all temperature units converter including Celsius to Kelvin conversion, please check temperature conversion.

How to convert Kelvin to Celsius?

To convert Kelvin to Celsius, subtract 273.15 from the Kelvin value.

Celsius = Kelvin - 273.15

What is Celsius?

Celsius (Centigrade) is a temperature SCALE with the freezing point of water is 0 degree and the boiling point of water is 100 degrees under standard atmospheric pressure (101.325 kPa). The SYMBOL is "°C"

Freezing point of water = 0 °C

Boiling point of water = 100 °C

Absolute ZERO = -273.15 °C

What is Kelvin?

Kelvin is the base unit of temperature in metric system and FORMALLY defined as 1/273.16 of the thermodynamic temperature of the triple point of pure water. The symbol is "K".

Freezing point of water = 273.15 K

Boiling point of water = 373.15 K

Absolute zero = 0 K

Explanation:

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ANSWER:

d is CORRECT because of both are B and C RAE correct

The difference between endothermic and exothermic reactions lies in the words themselves. "THERMIC" refers to heat, just as in the word "thermometer." "Exo" means "outside" and "endo" means "inside." THUS, an endothermic REACTION pulls heat into an object or AREA, while an exothermic reaction expels heat.

ANSWER:

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Answer:

[C] METALLICA radii>VAN SET was,'s >covalent radii

a) BEAKER A

Copper is less reactive than IRON , hence iron DISPLACES copper

b) This is the reaction

Copper SULPHATE + Iron ------ Iron sulphate + Copper

Answer:

1. Burning of fuel  - EXOTHERMIC

2. DIGESTION of FOOD  - ENDOTHERMIC

3.germination of SEED   - SLOW

4.beating of heart  - FAST

ANSWER:

{3} number is CORRECT Because EXOTHERMIC change

ANSWER:

............................

Answer:

MOLE fraction of SOLUTE of a DILUTE solution. ... As the solution is dilute so, MOLALITY is very low and it is ALSO divided by 1000 which will give us a value near to zero (for X2).

ANSWER:

SRY I don't KNOW the answer

The following reaction takes place-

Na + H2O---->NaOH + H2 + Heat

The GAS evolved is hydrogen.

To test this, bring the test TUBE infront of a burning candle by CLOSING the test tube with your thumb and then releasing it near the burning candle. This will give you a pop sound. This shows that hydrogen is evolved.

ANSWER:

they REACT to neutralize the acid and base properties, producing a SALT.

Answer:

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Diffusion is the passage of particles from an AREA of higher CONCENTRATION to an area of lower concentration. Dissolving is the bombardment of a solvent (e.g. water) on solute MOLECULES (something that can dissolve, like sugar) forcing them apart. The solute mixes with a solvent to form a SOLUTION.

ANSWER:

HEYA!.

Cyclodextrines are cyclic structures containing hydroxyl end groups that can form HYDROGEN BONDS with either the 4MP or water molecules. At room temperature, up to 300 grams of αCD can be DISSOLVED in a litre of 4MP. The resulting solution is homogenous and transparent, but it becomes a milky-white solid when heated.

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