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ANSWER:

NACL- SODIUM chloride -common salt

NH4Cl- ammonium chloride-ammonium salt

BaSO4-Barium sulphate

MgSO4-magnesium sulphate

CH3COONa-sodium acetate

MgCl2-magnesium chloride

Answer:

12. 2-propanamine

8. ETHOXY ETHANE

hey MATE...

A gas can't be half filled because the MOLECULES of gas don't come CLOSE like the solids. They always have a TENDENCY to be filled up in a container. A gas cylinder cannot be half filled because of the following reasons: ... Gases are the fluid form of matter which occupy the entire container.

ANSWER:

Because of the latent HEAT

Explanation:

When ice is MELTING, the particles of ice are absorbing heat which helps to decrease the INTERMOLECULAR forces between the atoms.

This is known as latent heat of FUSION.

PLEASE SPECIFY your question

Enough INFORMATION is not GIVEN

Answer:

here is your ans....

acids...

1 acids are sour in taste while bases are BITTER in taste

2 acids change the colour of blue LITMUS to red while bases change the colour of red litmus paper to blue

3 acids produce h+ ions in aqueous solution while bases give OH- ions in aqueous solutions

4 acids react with bases to FORM salt and water while bases react with acids to form salt and water(this reaction is known as NEUTRALIZATION reaction)

5 the ph of acids ranges from o to 7 while the ph of bases ranges from 7 to 14

Explanation:

HOPE this will help you

METAL NAME HELIUM(he) to KYA KARE

ANSWER:

MAYBE ELECTRONS

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

ANSWER:

hellomate.....

its becoz the DENSITY of ice is less than the density of WATER

Answer:

A) the particles can be dust particles

B) AIR

C) The phenomena exhibited by PARTICLE X is Known as Tyndall effect.

D) The Movement of particles is CAUSED DUE to loosely packed air molecules.

E) This phenomena shows that air filled with dust particles is a colloid( aerosol).

Hi dear

here is ur answer

The ETHANOL industry of today utilizes raw materials RICH in SACCHARIDES, such as sugar cane or sugar beets, and raw materials rich in starch, such as CORN and WHEAT.

HEY mate

here is your ANSWER

A RED metal is USED as wire is COPPER .

hope it helps

marked brainlest if answer helpful

thanks

ANSWER:

acid is SUBSTANCE which are disocsates are ionised COMPLETELY to form hydrogen ion ,base is compound when REACT with acid it MAKE salt + h2o

Answer:

Your the guy that cheated in UNIT 1 chem f321! ... Ethane-1,2-diol is heated under REFLUX with ETHANOIC acid and a small

Answer:

X=MGO(MAGNESIUM oxide)

2Mg+O2=2MgO

Type of reaction is combination reaction.

Here the oxidizing agent is Mg and the reducing agent is the O2.

This is because Mg is getting taking in O and is reducing itself to form MgO.

This Magnesium oxide, or magnesia, so formed is a white HYGROSCOPIC solid mineral that occurs naturally as percales and is a SOURCE of magnesium.

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Metal OXIDES are basic in nature because they react with dilute acids to form SALT and water. they also dissolve in water to form Metal hydroxides which are Alkaline in nature. ... On the other hand, if you LOOK at non metallic oxides, they react with water to form ACIDIC solutions which liberate H+ ions in solution.

ANSWER:

HOPEFULLY it will HELP U...

Heya Mate! ♥

Answer....

Photosynthesis :

Photosynthesis is a process USED by plants and other ORGANISMS to convert light energy into chemical energy that can LATER be released to fuel the organisms' activities.

Equation : Refer the attachment!

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EPICHLOROHYDRIN is very HAZARDOUS

ANSWER:

HOPE it HELPS U BUDDY.....

@dhruvchaudhary38

14 g of SOLID NAOH was dissolved in water and the

solution was made up to 1000 ml. The whole of

this will neutralized completely

(1) 100 ml of 1 M H, SO

(2) 20 ml of 2.5 M H2SO4

(3) 20 ml of 1.5 M H,SO4

(4) 30 ml of 5 M H2SO4

Option D

Diffusion of Copper SULFATE into water will takes place at the SLOWER rate Gas in gas diffusion is faster because of the LARGE SPACES present between the PARTICLES of the gases as compared to solids and liquids.

ANSWER:

(B) 2.19 × 10^6 m/s is the CORRECT answer

Answer:

Explanation:

(a) Propanoic acid

(b) If you OBSERVE the bottoms of cooking vessels getting blackened, it means that the air holes are blocked and fuel is getting wasted and that is mainly caused because of incomplete combustion of  fuel and limiting the supply of air results in incomplete combustion of even saturated hydrocarbons, giving a sooty flame.

(C) Micelle is a STRUCTURE formed when soap molecules get arranged and align along the surface of water with the ionic end in water and the HYDROCARBON tail PROTRUDING out of water.

Answer:

Explanation:Physical Adsorption

1. This is usually takes place at LOW temperature and decreases with increase in temperature.

2. The forces of attraction holding the ADSORBATE are Vander Waal’s forces

3. Heat of adsorption is low

4. It is reversible

5. It is not very specific

6. It FORMS MULTIMOLECULAR layer

7. It does not require any activation energy

Chemical Adsorption

1. This takes place at high temperature

2. The forces of attraction holding the adsorbate are chemical bond forces

3.Heat of adsorption is high

4. It is irreversible

5. It is highly specific

6. It forms monomolecular layer

7. It requires activation energy

ANSWER:

MELTING of ice

Explanation:

melting of Ice as the STATE of water is CHANGED

ANSWER:

A SOLUTION is acidic and B solution is BASIC in nature . As reading from 0 to 7 is acidic whereas reading from 7 to 14 is basic in nature .

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Answer:

HYDROGELS can ABSORB IRRIGATION and rain WATER and help to reduce deep percolation by using gravitational water as well as capillary water.

The objective of this study was to evaluate the effect of hydrogels on soil water retention characteristic curve (WRC) using RETC computer model

ANSWER:

Significant changes OCCUR in antioxidant defenses in plants subjected to environmental STRESSES, including ENZYMATIC and nonenzymatic antioxidants. The association of the antioxidant enzymes (SOD, CAT, and GR) and several others enables to keep the oxidative damages on the plant intracellular components to a very low level.7 For this reason, we measured the activity of the three antioxidant enzymes (SOD, CAT, and GR) under two conditions of thermal stress (12 and 32 °C) and under the optimal temperature (20 °C).

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ANSWER:

Galena

Explanation:

HAPPY to HELP U .......

EXPLANATION:

MAY be it is HCO2C3H4

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Answer:

Because the reaction of ACID and metal carbonates produces CARBON dioxide, which is not a SUPPORTER of COMBUSTION.

the SECOND compound is not the resonating form of the first compound. BCOZ if u observe nicely the second structure is totally WRONG as the double BOND of oxygen has moved to nitrogen but oxygen has -ve and nitrogen has +ve charge.So they are not resonating STRUCTURES.

Answer:q stands for heat

And H stands for ENTHALPY

Explanation:

Enthalpy is a state FUNCTION

ANSWER:

Explanation:

UNSATURATED lactones like coumarin, parasorbic acid, etc., came to prominence after the postulation of blastocholine, the group of unknown substances from the ripe FRUITS which were FOUND to inhibit the germination of corn seeds. Work was further extended to study the physiological behaviour1 as well as cytological effects2 produced by these unsaturated lactones. Coumarin at high concentrations has been reported to have inhibitory effects in several plants3–7. The present investigation was DESIGNED to study the effect of coumarin (the lactone of o-hydroxy-cis-cinnamic acid) at various concentrations on the germination and growth of rice seedlings.

ANSWER:

Na atoms WEIGH 1G

so 100 atom would weigh 100/Na

=1.66x10⁻²³

where Na is 6.022 x 10²³

Answer:

use DILUTE acid

Explanation:

the dull COLOUR of vessel is due to formation of oxide layer formed on it's surface if you clean it with mild acids like citric acid ( juice) it will REACT with the oxide layer and clean it and makes it shiny

If we drop UNDERWATER on our Palm in will evaporate easily and cause COOLING because it has a LOW BOILING point and it can be evaporate easily but but quantities because it has a LOCK it has a high boiling point and it does not go causes as much cooling as the underwater please follow me

Uranium is a lanthanide and a man made element​

Explanation:

• The lanthanides are a collection of 15 chemical essentials, with atomic numbers 57 over 71. ALTOGETHER these elements have one valence electron in the 5d SHELL. The elements share features in mutual with the first element in the group -- lanthanum.
• The lanthanides are reactive, silver-colored metals. The man-made elements on the periodic table are those which are not found in nature, but have been synthesized in laboratories by SCIENTISTS. These elements are extraordinarily rare.
• Technetium was the first artificially produced element. It was isolated by Carlo Perrier and Emilio Segrè in 1937. Technetium was created by bombarding molybdenum atoms with deuterons that had been ACCELERATED by a device called a cyclotron.  

Learn more about lanthanide

Discuss the CONSEQUENCES of lanthanide contraction.

brainly.in/question/10234205

Write short note on Lanthanide contraction.

brainly.in/question/5445570

Solution :

1 KJ /MOL = 0.0167 × 10-19 J / molecule

243 KJ /mol = 0.0167 × 243 × 10-19

                        = 4.067 × 10⁻¹⁹ J /molecule.

According to Planck's law,

E = HC / λ

Therefore,

λ  = hc  / E

h - Planck constant = 6.625 × 10⁻³

c - velocity of light = 3 × 10⁸ m/s

     =  (6.625 × 10⁻³ *  3 × 10⁸ m/s ) /  ( 4.067 × 10⁻¹⁹ )

     = 4.887 * 10⁻⁷ m

λ = 488 nm

nm - nanometer = 10⁻⁹ m

⭐《ANSWER》

↪Actually welcome to the CONCEPT of the REDOX REACTIONS

↪Now basically here , we have to be familiar with the concept that ,

↪--》 Whenever there is a INCREASE in the Oxidation State or Oxidation number of the Element , we have to consider it as a OXIDATION REACTION

↪Such as for an EXAMPLE,

↪Fe2+ -----》 Fe3+ + 1e-

↪so now here, we can see that , there is loss of 1 electron from the Ferrous , so this is increasein the Oxidation Number thus this is an Oxidation Reaction ,

↪Similarly , when there is Decrease in the Oxidation state or Oxidation Number , there is Reduction Reaction ,

↪So from above ,

↪here , Stannous is GOING from +4 to +2

〽thus it is decrease in the Oxidation Number , so it is a REDUCTION REACTION

1. CHEMICAL FORMULA OF bleaching powder is CaOCl2.                                      2. chemical formula of PLASTER of paris is CaSO4. 1/2 H2O.                                        3. chemical formula of washing soda is  Na2CO3.10H2O.                                          b) Baking soda ( SODIUM carbonate or sodium HYDROGEN carbonate)  formula is    NaHCO3. when it is heated it easily loses CO2 and the CO2 makes bubbles and this creates channels, which is what gives baked  goods a fluffy and light texture.

 the trapped CO2 bubbles are what allowed the baked goods to rise.                   C)  the main ingredient of baking soda is sodium bi   carbonate.  sodium bi carbonate is a base which reacts with bases like vinegar, yogurts ETC.

HELLO Buddy

Here's your answer

Refer to the attachment

Hope you FIND it useful

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ANSWER:

yes

Explanation:

so that these can REMAIN for more TIME

ANSWER:

Mg₃N₂

...MAGNESIUM NITRIDE...

HI there,

☆ Metal exist in liquid state at NORMAL conditions is MERCURY ( Hg )

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♡ PLZ mark it as brainliest

Explanation:

In the periodic table, the metals are placed on the left, and the non-metals on the RIGHT. FIRST of all, let's look at the DIFFERENCE in the chemical properties between metals and non-metals. Metals have one to THREE electrons in their outer shell, WHEREAS non-metals have four to eight electrons.

ANSWER:

_________----->>> B)0.21 MOLE

Answer:

The MAIN difference between BOILING POINT and melting point is that the melting point is defined as the TEMPERATURE at which solid and liquid phases are in EQUILIBRIUM, whereas the boiling point is the temperature at which the vapour pressure of a liquid is equal to the external pressure.

each of a PAIR of MOLECULES that are MIRROR IMAGES of each other.