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ANSWER:

HI I just WANT to POINT so SORRY

Answer:

CARBON DIOXIDE or co2

Explanation:

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Sugar- CARBON, Oxygen, HYDROGEN

AMMONIA- Nitrogen and Hydrogen

MARBLE- Limestone

Washing Soda- Sodium, CARBONATE and Oxygen

ANSWER:

C12H22O11+H2O→4CH3CH(OH)COOH. In this REACTION, lactose reacts with water to give lactic acid. When milk is converted into curd, the sour TASTE is due to lactic acid, which is option

EXPLANATION:

THANKYOU...

Answer:

aquatic animals (EG: fish) USE oxygen dissolved in WATER

Explanation:

When vapour GIVES out HEAT, equal to latent heat of VAPORISATION DUE to any reason, it turns into liquid without changing its temperature. This process is called condensation.

Answer:

MIXTURE of salt (sodium chloride) and silica may be separated by DISSOLVING the salt in water, and filtering off the UNDISSOLVED silica.

Explanation:

Salt or sodium chloride - usually soluble in water at 20 ° C. Sugar usually dissolves in water MOLECULES at 20 ° C. Gelatin - soluble in water in the presence of heat. Powdered JUICES are a mixture of sugar, flavorings, and preservatives, usually soluble in water at 20 ° C.

EXPLANATION:

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Answer:

it CHANGES the RED litmus PAPER to blue and doesn't cause any CHANGE in blue litmus paper

Explanation:

Y will be magnesium hydroxide ..which is a base

Answer:

Yes, in some CASES the physical and the chemical changes can occur together. One such example is the burning of candle. The wax present in the candle changes to liquid STATE. This means that the change is of physical NATURE. At the same time, the constituents carbon and hydrogen present in wax react with OXYGEN of air to form new subtances. This means that a chemical reaction or change is also taking place.

Explanation:

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Answer:

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EXPLANATION:

The dominant OXIDATION state of these elements is +3 (similar to lanthanides). Besides +3 state, they also EXHIBIT +4 oxidation state.

ANSWER:

d is the CORRECT answer BROTHER

Explanation:

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ANSWER:

NA^ is the answer. HOPE it will HELP

Answer:

hey there here is your answer

Explanation:

they are ISOBARS. Isobars are two ELEMENTS whose atomic numbers are different but have similar mass number.

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Answer:

One mole of ATOMS of oxygen has a MASS of 16 G, as 16 is the atomic weight of oxygen, and CONTAINS 6.02 X 1023 atoms of oxygen.

ANSWER:

Cs+

Explanation:

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ANSWER:

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Here are some of the postulates of Kinetic Theory of Gases,

➠ Gaseous substances, it contains tiny particles which are known as molecules.

➠ The molecules move randomly in all the possible directions.

➠ The molecules COLLIDE with each other(intermolecular collisions) and also collide with container walls.

➠ The pressure exerted by the gas is due to colloidal between molecules and container wall.

➠ Intermolecular  collisions are elastic collisions means during the collision the energy lost by the molecule exactly EQUAL to energy gained by another molecule due to intermolecular collisions of kinetic energy of molecules continuously changes but total kinetic energy of gas will same.

➠ Kinetic energy of gas is directly proportional to absolute temperature

➠ The volume occupied by the molecule is negligible when compared to volume occupied by gas.

➠ In the gaseous substances, the intermolecular attractions are considered negligible.

KINETIC GAS EQUATION IS GIVEN AS

where,

✪ P = Pressure exerted by gas

✪ V = Volume of gas

✪ m = MASS of the molecule

✪ C = R.M.S VELOCITY

✪ n = number of molecules(6.023 × 10²³)

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Answer:

Phosphorus has ELECTRONIC configuration of [Ne]3S2 3P3 As it is a 3rd period element it also have a vacant 3D orbital.

In case of P4O6 only the 3P3 electrons take part. Resulting in formation of 3 bonds with O. But in case of P4O10 one of the ELECTRON of 3S is excited to vacant 3D orbital. Now P has 5 unpaired electron and it can form 5 bonds. Therefore P forms 5 in P4O10.

Now, about the octet. Not every compound follow the octet rule. Just to UNDERSTAND The whole chemistry DEPENDS upon STABILITY i.e lesser energy of molecule. Therefore, if by forming more bonds (and does not obeying Octet rule) the molecule is gaining more stability, it will do so.

Answer:

1. The bond between two OXYGEN ATOMS to FORM a molecule

2. The bond between SODIUM and chlorine atoms to form sodium chloride

Answer:

the 3 isotopes of HYDROGEN differ in mass number which are 1, 2 and 3 RESPECTIVELY known as protium, deuterium and tritium.

Explanation:

Pollutants are the elements, molecules and particles involved in pollution - LIFE can be harmed when EXPOSED to these materials, and the effects of them on humans and plants are well known.

TYPICAL examples of pollutants included under this category are ash, smoke, fumes, DUST, nitric oxide, sulphur dioxide, hydrocarbons etc.

Answer⤵️

• It is not possible to SEE an ATOM with naked eye because of its EXTREMELY small size (ATOMIC radius is of the ORDER of 10-10 m).

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ANSWER:

Three causes of water WASTAGE are -

.Maintenance of the drinking line.

.The HEIGHT of the drinking line.

. The water pressure on the drinking line.

Answer:

Sunita has been DESCRIBED an ACHIEVER is EQUAL to to EXCRETE means BETTER off

Explanation:

Even with the best precautions, dirt will undoubtedly find its WAY into your home. And once it does, the best remedy is a good mopping. While cleaning is an endless cycle—and FLOOR CARE the most relentless—a little vigilance goes a long way. But before you begin mopping at random, develop a plan to maximize your EFFORTS. To help you do so, MARTHA has shared some of her best mopping tips, culled from her book, Homekeeping Handbook: The Essential Guide to Caring for Everything in Your Home ($27.40, amazon.com). Ahead, she shares her best mopping advice, from the types of mops you need to know about to the best ways to tackle the chore itself—plus, she speaks to how often you really need to clean your floors, room by room.

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Answer:

The white stuff we know as sugar is SUCROSE, a molecule composed of 12 atoms of carbon, 22 atoms of hydrogen, and 11 atoms of OXYGEN (C12H22O11). LIKE all COMPOUNDS made from these three elements, sugar is a carbohydrate

Answer:

Chlorine is a naturally-occurring chemical element, one of the basic building blocks of matterChlorine CHEMISTRY provides clean DRINKING WATER to millions around the globe. Clean drinking water made POSSIBLE with chlorine disinfectants is a monumental triumph over the scourges of waterborne disease.

Explanation:

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ANSWER:

solubility is measured as the AMOUNT of SOLUTE dissolves in a GIVEN quantity of solvent and at a given temperature to form a SATURATED solution

ANSWER:

SOLUTION because it is SOLUBLE and water is international solvent

Answer:

1. true , YES , metals are sonorus for eg-silver

2.true , yes ,Elemental gallium is a liquid at temperatures greater than 29.76 °C (85.57 °F), and will melt in a person's hands at normal human body temperature of 37.0 °C (98.6 °F). The melting point of gallium is used as a temperature reference point.

3 true , .LEAD being metal is a bad conductor of electricity and heat

4.yes , Most pistol bullets are made of a lead-antimony alloy encased in a soft BRASS or copper-plated soft steel jacket. In rifle and machine-gun bullets, a soft core of lead is encased in a HARDER jacket of steel or cupronickel.

5.true ,because they can share electrons with chlorine.

Answer:

Vermi-processing TOILETS is a design of a toilet in which HUMANS excreta is treated by EARTHWORMS. In this process, human excreta is completely converted to CAKE like structures called vermi cakes by earthworms. Vermi cakes are USED mostly in the soil as manure and fertilizers.

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Answer:

EXPLANATION:

Element A is an anion

Element D is a cation

Element B is an ATOM of an inert gas

Answer:

Chemical engineering is a branch of engineering which deals with the study of DESIGN and operation of chemical PLANTS as well as methods of improving PRODUCTION. Chemical engineers develop ECONOMICAL commercial processes to CONVERT raw material into useful products.

ANSWER:

AROMATIC ccompoound

Explanation:

ANSWER:

i THINK it is pentabenzene having SWEET aroma

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ANSWER:

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ANSWER:

WASHING it by CH3COOH ACID

Answer:

Water has a high specific HEAT CAPACITY which we'll refer to as simply "heat capacity", meaning it takes more ENERGY to increase the temperature of water compared to other substances. This is why water is valuable to industries and in your car's RADIATOR as a COOLANT.

ANSWER:

a) melting

b) SUBLIMATION

c) evaporation

d) sublimation

ANSWER:

CARBON monoxide

Explanation:

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ANSWER:

The concept of fusion was PROVEN in the 1990s, and now it seems that we are LESS than a decade from a fully up-and-running reactor. In March, the MASSACHUSETTS Institute of Technology (MIT) announced that its SPARCreactor could begin producing energy from nuclear fusion 

Explanation:

The concept of fusion was proven in the 1990s, and now it seems that we are less than a decade from a fully up-and-running reactor. In March, the Massachusetts Institute of Technology (MIT) announced that its SPARCreactor could begin producing energy from nuclear fusion 

ANSWER:

HYDROGEN

EXPLANATION:

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ANSWER:

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EXPLANATION:

ANSWER:

Is it difficult the answer is yes. most modern science scoffs at the possibility. It is not fully understood but during the process of adding or subtracting protons when the elemental metal is being converted to an ORGANIC material a new material evolves which is unstable in third dimensional physics. This material is called several names but is variant of the philosophers stone. Even THO most science will tell you this does not exist or is impossible it is ancient and is possible. It is DEALING with forth dimensional physics. Way to much to write here and will I’m sure be argued.

Explanation:

Answer: This method of separation of particles from a mixture BASED on the difference in SIZE of particles is known as sieving. It uses sieve plates for separation of coarse particles from finer particles.

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ANSWER:

clay

Explanation:

becoz in UPPER four options in which three are STONE like SANDSTONE PEAT chalk but clay is not a part of stone so my answer is clay.... what you think what is the right answer?

If you mean for the fact that it is sulfuric (aka sulphuric) acid then the symbol would be H2SO4. If you mean that it is an aqueous SOLUTION then one might WRITE H2SO4 (aq). If it was dilute, you might write dil H2SO4 but dilute is ambiguous so you might, INSTEAD, write the CONCENTRATION, for example, 0.1 M H2SO4.

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