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ANSWER:

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Answer:

Communication is simply the act of TRANSFERRING information from ONE place, person or group to another. Every communication involves (at least) one sender, a message and a recipient. ... These include our emotions, the cultural situation, the medium used to communicate, and EVEN our LOCATION.

Explanation:

A GAS is EVOLVED which TURNS the freshly PREPARED lime water milky.

I.e CO2

CaCO3+HCL- -> CaCl2+H2O+CO2

Answer:

HNO3 is a strong acid and can only DONATE H+ IONS HENCE, it is not AMPHOTERIC in nature.

Explanation:

hope it helps you

Explanation:

What will be the value of ΔGΘ? R=8.314JK-1mol-1,T=300K. STEP by step SOLUTION by experts to help you in doubt CLEARANCE & scoring excellent MARKS in exams.

Answer:

Aquatic respiration is the process whereby an aquatic ANIMAL OBTAINS oxygen from water. This is done using diffusion of oxygen. Fish USE the process known as countercurrent flow in which water and blood flow in opposite directions ACROSS the gills, maximizing the diffusion of oxygen.

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Answer:

Given, 49% WEIGHT by VOLUME HCl solution

Therefore, weight of HCl in 1ml of solution = specific GRAVITY x 49%

= 1.41 x 49/100

=.6909 g/ml

Weight of HCl in 1000 ml of solution = 0.6909 x 1000 = 690.9 g

Molarity = weight of HCl in 1000 ml / mol.weight of HCl

= 690.9/36.4

= 18.9 M

Explanation:

The IUPAC name of the element with ATOMIC NUMBER 109 is

Unnilennium

ANSWER:

WATER PURIFICATION SYSTEM.

Explanation:

ISOSTERES are molecules or ions with similar SHAPE and often electronic properties. Many definitions are available. but the term is usually employed in the CONTEXT of bioactivity and drug DEVELOPMENT. Such biologically-active compounds containing an isostere is called a bioisostere.

EXPLANATION:

HHH and I have a few QUESTIONS about the ROLE and I have a few

Explanation:

PRESSURE AND TEMPERATURE RELATIONSHIP. In a closed system where volume is held constant, there is a direct relationship between Pressure and Temperature. ... For EXAMPLE, when the pressure INCREASES then the temperature also increases. When the pressure decreases, then the temperature decreases.

Answer:

Physical chemistry is the study of MACROSCOPIC, and particulate PHENOMENA in chemical systems in terms of the principles, practices, and concepts of PHYSICS such as motion, energy, force, time, thermodynamics, quantum chemistry, STATISTICAL mechanics, analytical dynamics and chemical equilibrium.

Answer:

The reaction rate or rate of reaction is the speed at which a chemical reaction TAKES place, defined as proportional to the increase in the concentration of a product per unit time and to the decrease in the concentration of a reactant per unit time.[1] Reaction rates can vary dramatically. For example, the oxidative rusting of IRON under Earth's atmosphere is a slow reaction that can take MANY years, but the combustion of cellulose in a FIRE is a reaction that takes place in fractions of a second. For most reactions, the rate decreases as the reaction proceeds. A reaction's rate can be determined by MEASURING the changes in concentration over time.

Answer

is a combustion reaction because a LARGE amount of heat is EVOLVED during respiration by the breaking down of glucose in our BODY and releasing CO2 gas. In combustion reaction, a specific amount of heat is evolved. So, respiration is also a combustion reaction.

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ANSWER:

SODIUM: Element

Sugar Solution: MIXTURE

Silver: Element

Calcium CARBONATE: Compound

Tin: Element

Silicon: Element

Air: Mixture

ANSWER:

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Answer:

For sedimentation tank it allows solids to settle . (b) For LOADING tank is to sediment the suspended impurities . (c) For CHLORINATION tank is to KILL bacteria . THE DENSE PARTICLES PRESENT IN THE WATER IS ALLOWED TO SETTLE AT THE BOTTOM OF THE SEDIMENTATION TANK AND THEY ARE LATER SEPARATED

Answer:

In 100 g of ascorbic acid, we will have 40.92 g C, 4.58 g H, and 54.50 g O. The whole-number RATIO gives us the SUBSCRIPTS for the empirical formula. Thus, the empirical formula is C3H4O3.

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ANSWER:

SHERLOCK HOLMES called

about MR. WILSON

Acetone

Explanation:

The MAJOR product obtained by the treatment of PROPYNE with AQUEOUS H2SO4 in the presence of HGSO4 is Acetone.

Explanation:

1. Pb(NO3) ----> PbO + NO2 + O2

• White PbO Lead Oxide is formed
• Brown gas NO2 NITROGEN Dioxide is RELEASED

2. AGCL -------> AG + Cl2

• Greyish Ag Silver is formed
• Greenish gas Cl2 Chlorine gas is released

ANSWER:

answer is the NH3 is the BOND ANGLE of 180

Answer:

FIRST, I would WRITE a balanced equation for the combustion reaction, using 1 mol of ethane:

C2H6(g) + 3.5O2(g) = 2CO2(g) + 3H2O(g) T = 2950C

But 8g of ethane C2H6 is 8/30 = 0.267mol, so the equation is (multiplying the above equation by 0.267:

0.267C2H6(g) + 0.9345O2(g) = 0.534CO2(g) + 0.801H2O(g) T = 2950C

Change in FREE Energy: ΔG(2950C) = -420.4kJ (negative, so the reaction RUNS)

Change in Enthalpy: ΔH(2950C) = -389.5kJ (negative, so the reaction is EXOTHERMIC)

This reaction produces 0.801mol of water, which is 14.43g, 17.953L (as a gas)

Answer:

Changing of milk into CURD is a chemical CHANGE, because the sugar in milk gets converted to acid, which in turn changes milk from liquid FORM to SOLID form. Milk contains a sugar, lactose. This lactose turns to lactic acid DUE to the presence of bacteria in the milk (lactobacillus).

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ANSWER:

The main DIFFERENCE between fractional distillation and simple distillation is that simple distillation separate liquids with BOILING point gaps of at least 50 degrees whereas fractional distillation SEPARATES liquids with CLOSER boiling points.

Explanation:

hope it helps

ANSWER:

The DISSOLUTION of a GAS in a liquid is exothermic process. Therefore according to LeChatelier principle,with the increase in temperature,the equilibrium shifts in the BACKWARD direction. Therefore the solubility of gas in solution decreases with rise in temperature.

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There are two factors that play in weathering, viz. Temperature and Precipitation. WARM climates AFFECT by chemical weathering while COLD climates affect by physical weathering (particularly by frost action). In EITHER case the weathering is more pronounced with more moisture content.

EXPLANATION:

In the reaction, C12H22O11 + H2O → C6H12O6 + C6H12O6 , water is PRESENT in large EXCESS. ... Thus, it is an example of pseudo first order reaction

Answer:

1234567i90 7 is the LARGEST NUMERAL in this

ANSWER:

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ANSWER:

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Explanation:

WRITE a bond LINE formula CH3CH2CH2OH

ANSWER:

0.05 MOL C6H4(NO2)2 IS THE ANSWER

Answer:

HCL+CaCO3 REACT with CaCl2+ H2O+ CO2 [Balanced the EQUATION]

ANSWER:

can U WRITE the QUESTION PROPERLY...

ANSWER:

The frequency of radiation emitted when an electron FALLS from n=4 to n=1 in a H atom will be ( GIVEN that: ionisation energy of H atom : 2.18 x 10^ -18 J/atom and Planck's constant = 6.625 x 10^ -34 J/s). : a) 1.03 x

Explanation:

FE2O3+ 3CO---->2 FE +3CO2

HOPE IT HELPS YOU...

Answer:

EXAMPLES of LINEAR molecules are obviously the diatomics such as OXYGEN (O=O), carbon monoxide (C≡O), and nitrogen (N≡N). ... A spherical top molecule is a SPECIAL case of a symmetric tops with equal moment of inertia about all three axes IA = IB = IC. The spherical top molecules have cubic SYMMETRY.

Explanation:

What is a pure substance? Name the types of pure substances.

Answer: Any substance is said to be pure if and only if it is made up of single TYPE of particles means all the particles of that substance should be of same chemical nature. For example water, sugar, salt, Sodium, Tin etc.

There are two types of pure substances that are Elements and Compounds.

Examples of elements are: Iron, Silver, GOLD, Mercury etc.

Examples of compounds are: Water, Carbon dioxide, methane, vinegar etc.

What is a mixture? Name the types of mixtures? What is the difference between them?

Answer: A mixture is a combination of two or more substances (elements or compounds) which is not done chemically.

Mixtures are two types Homogeneous Mixtures and Heterogeneous mixtures.

Homogeneous Mixtures: A Homogeneous mixture has a uniform composition of its components throughout its mass. It does not have visible boundaries of separation between the various components. For example a sugar SOLUTION or a salt solution.

Heterogeneous Mixtures: A Heterogeneous mixtures does not have a uniform composition throughout its mass also it has visible boundaries of separation between various components. For example mixture of sand and water.

What is a solution? Write its properties.

Answer: A solution is a homogeneous mixture of two or more substances. A solution has a solvent and a solute as its components.The component of the solution that dissolves the other component in it (usually the component present in larger amount) is called the solvent.The component of the solution that is dissolved in the solvent (usually present in lesser quantity) is called the solute.

Properties of a solution

• A solution is a homogeneous mixture.

• The particles of a solution are smaller than 1 nm (10-9 METRE) in diameter. So, they cannot be seen by naked eyes.

• Because of very small PARTICLE size, they do not scatter a beam of light passing through the solution. So, the path of light is not visible in a solution.

• The solute particles cannot be separated from the mixture by the process of filtration. The solute particles do not settle down when left undisturbed,

that is, a solution is stable.

Concentration of Solution: Concentration of a solution is the amount of solute present in the given amount of solution. The concentration of a solution can be determined by the following ways:

class 9 IS Matter Around Us Pure Science ncert solutions

Answer:

CAOCL2 is PRESENT as an ACTIVE ingredient in bleaching POWDER because it is an oxydizing agent and therefore gives OXYGEN on oxidation.

NA2CO3 + HCL - NACL + H2 + CO2

Answer:

it will be on FORWARD DIRECTION as when the temperature is CHANGED there will be no MAJOR effect on the REACTION it will again come in equilibrium...

ANSWER:

AWESOME QUESTION .....

EXPLANATION:

REFER to the ATTACHMENT!!!!!!!!!!!!

ANSWER:

PROTON has a SMALLEST e/m value

Explanation:

because

proton

is a smallest PART of the ATOM

ANSWER:

a) METHYL glyoxal

Explanation:

Answer:

124 DEGREE CELSIUS is the TEMPERATURE of the REACTION can be SPONTANEOUS