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MOLARITY CHANGES on CHANGE in TEMPERATURE .

ANSWER:

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Answer:

Choice a. The compound NAME is alphabetized incorrectly.

The correct IUPAC name of this compound should be:

4-ethyl-2,2-dimethylheptane.

Explanation:

Draw the carbon backbone structure for "2,2-dimethyl-4-ethylheptane":

.

The seven-carbon backbone is indeed the longest chain in this compound.

.

Numbering from the end with the two METHYL groups indeed minimizes the NUMBER on each group. However, the alphabetical order of the groups is not correct. There are two kinds of substitute groups in this compound:

• Two methyl groups, and
• One ethyl group.

The name for them will be :

• 2,2-dimethyl, and
• 4-ethyl.

Ignore the multiplier prefixes (di-, tri-, etc.) while alphabetizing.

The ethyl group shall be placed before the two methyl groups. The name of the compound shall be:

4-ethyl-2,2-dimethylheptane.

ANSWER:

Metals are hard, strong and shiny in appearance but minerals are not soft, WEAK, and DULL in appearance. Metalloids are both metals and non metals. Which means, they have the PROPERTIES of both metals and non metals.

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Answer:

No EVERYTHING is not MADE up of ENERGY. Energy is made up of GLUCOSE and oxygen.

Answer:

If a solution TURNS BLUE litmus PAPER red, its pH is likely to be less than 7 , indicating that the solution is acidic in nature.

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ANSWER:

HUGHES and the KIDS are at the same WAY I as

<STRONG>Answer:

PHENOLS are Acidic because they are formed by the reaction of strong acid and WEAK BASE but alcohol are neutral because they are formed by the reaction of strong acid and strong base

Answer:

lactic acid

some AMOUNT of lactic acid is ADD to MILK which help to MAKE milk into curd or yogurd by the process of fermentation

ANSWER:

ZNCO3 + heat= ZnO + CO2

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CALCIUM FERROCYANIDE

WATER at room temperature is a LIQUID because its freezing point is 0 °C and BOILING point is 100 °C.

ANSWER:

this is answer which I SENT in this IMAGE

Hydrogen is INCLUDED in the reactivity SERIES of metals because it's PROPERTY of electroposivity (i.e losing electron to FORM positive ion) is similar to that of metals, thats why we can relate it with metals.

ANSWER:

The elements which gain atom from other element to complete it's octate, they are known as Non-Metals

Explanation:

Take an example of Mg(MAGNESIUM) and Cl(Chlorine)

if we react both.elements..

Mg has at. no. is 12

Cl has at. no. 17

Then, on reacting each other...

Cl take 1 atom from Mg to complete it's octate..

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ANSWER:

+4

Explanation:

let the OXIDATION value of C in CaCO3 be x

CaCO3

(+2)+x+3×-2=0

2+x-6=0

x-4=0

x=+4

x=+IV

Compound A reacts with water to form a compound B that is used in WHITE-WASHING.

Since Ca(OH)₂ is used in white washing,

• Compound A + H₂O (L) → Ca(OH)₂ (aq)

Hence Compound A can be CaO called “Quick Lime”.

______________________________

Now, Compound B reacts with CO₂ to have compound C which is white PRECIPITATE.

• Ca(OH)₂ + CO₂ → CaCO₃ + H₂O

We also know that CaCO₃ is a white precipitate, hence Compound C is CaCO₃

______________________________

Compound A : CaO

Compound B : Ca(OH)₂

Compound C : CaCO₃

Answer:7 ATM for 5 question

Explanation:

PV = P1V1 + P2V2

P(5L + 10L) = 5(9) + 10(6)

P=105/15

=7 ATM

9th ques answer

Initially at lower end

P = 76cm of Hg + 76cm of air = 152cm

T = 300K

V=V12

Where V1 is the volume of the cylinder

Finally at lower end

P = 76cm of air + 38cm of Hg = 114 cm

T = ?

V=3V14

∴P1V1T1=P2V2T2

152×V12×300=114×3V14×T

∴T=114×3×2×300152×4

= 337.5K

Hence answer is

337.5k

ANSWER:

As TEMPERATURE increases the kinetic ENERGY of PARTICLES increases so velocity increases as a result rate of diffusion increases.

GREATER number of particles increases the collisions so rate of diffusion increases.

So higher the density higher the rate of diffusion.

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ANSWER:

Buttermilk. ... A product KNOWN as cultured buttermilk is made by the fermentation of SKIM milk or low-fat milk. Starter cultures contain, in addition to the bacteria used for filmjölk MANUFACTURE, LACTOCOCCUS lactis ssp.

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Answer:

DECREASING in ph value

where 1 is most acicdic and 6 is LEAST acidic

Explanation:

ANSWER:

if it has CHIRAL CENTRE then it FORMS OPTICAL isomer.

Explanation:

ANSWER:

You can REFER to the IMAGE above:)

ANSWER:

CHEMISTRY is important in everyday life because: ... MANY of the changes you observe in the world around you are caused by chemical reactions. Examples include leaves changing colors, cooking food and getting yourself clean. Knowing some chemistry can HELP you make day-to-day DECISIONS that affect your life.

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Answer:

This means that the melting POINT of ice is 0 degree clesius and 273.16 k. Kelvin is the SI unit of TEMPERATURE

Answer:neither 60 nor 40 but 80 percent

Explanation: the REACTION should be LIKE this 10hcl +5mg --> 5h2 +5mgcl2  

i have balanced it. the rxn shows 5 mol of H2 shoild have been produce but only 4 mol has produced.so (4/5)*100 is 80 percent so both options are INCORRECT!

Answer:

physical - tearing of paper

rooling of dough into rolled chappati

CHEMICAL - BURNING of paper

rolled chappati into BALED chappati

ANSWER:

SEE the above pic u will get the answer

Explanation:

here is the answer

CaCO3 + H2SO4 -------->CASO4 + H2O +CO2

Answer:

A complex reaction proceeds through several ELEMENTARY reactions. Numbers of molecules INVOLVED in each elementary reaction MAY be different i.e., the molecularity of each step may be different. Therefore, discussion of molecularity of overall complex reaction is meaningless. On the other hand, order of a complex reaction is determined by the slowest step in its mechanism and is not meaningless even in the CASE of complex reactions.

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Answer:

In powder FORM tungsten is gray. The metal has the highest MELTING point of all metals, and at temperatures over 1650 oC ALSO has the highest TENSILE strength.

ANSWER:

the MOLECULAR FORMULA is BH3

2 C6H6+15 O2=12 CO2+6 H2O

Explanation:

LET the variables

p

,

q

,

r

,

s

represent integers such that:

XX

p

⋅

C

6

H

6

+

q

⋅

O

2

=

r

⋅

C

O

2

+

s

⋅

H

2

O

Considering the ELEMENT

C

, we have:

XX

p

⋅

6

=

r

⋅

1

XXXX

→

r

=

6

p

Considering the element

H

, we have:

XX

p

⋅

6

=

s

⋅

2

XXXX

→

s

=

3

p

Considering the element

O

, we have:

XX

q

⋅

2

=

r

⋅

2

+

s

⋅

1

=

12

p

+

3

p

=

15

p

XXXX

→

q

=

(

15

2

)

p

The SMALLEST value of

p

>

0

for which

q

is an integer is:

XX

p

=

2

XXXX

→

{

q

=

15

;

r

=

12

;

s

=

6

}

ANSWER:

(CASO4)2H2O+H2O ------> 2CaSO4H2O

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EXPLANATION:

If there is a homomorphism from A5 to S4 , then order of element of S4 should DIVIDE the order of its preimage. Now what are the possible order of elements in S4.1,2,3 and 4. Since A5 contains (12345), which is of order 5.. what could be image of (12345). Definitely Identity element which is of order 1. Similarly all 5 CYCLES must be mapped to identity. There are 24 elements of 5 cycles. 24 elements out of 60 are mapped to identity .. now only two types of homomorphisms are possible. either 30:1mapping or 60:1 mapping. CONSIDER (12)(34) which belongs to A5. It's image can be element of order 2 or identity.there are 15 elements of order 2 . suppose these 15 elements are mapped to some element 'g' of order 2 of S4, you need another 15 elements to get mapped to 'g' to have 30 :1 mapping. Other TYPE of elements left in A5 is of order 3. None of them can be mapped to g. hence 15 elements of order 2 should be mapped to identity .. so , (24+15=39) elements mapped to identity.As mentioned earlier it should be 30 :1 or 60:1 mapping. So it must be 60:1 mapping.Hence a trivial homomorphism. Answer is 1.

ANSWER:

DECREASE the pressure...

Activity:

take a syring and fill it with water. APPLY force on the plunger, the plunger won't move down which indicate absence of intermolecular spaces..

if we press the plunger of empty syring it move which indicate the presence of intermolecular spaces in GASES..

Answer:

Nanotechnology is the control of matter on the atomic or molecular scale.  It has many different applications INCLUDING research and development of nanomaterials.  Nanomaterials have unique properties some of which are DETERMINED by instrinsic nanoscale features.  Some examples include the development of sensors based on the surface plasmon resonance effect, quantum dots and carbon nanotubes.   

Due to the microscopic scales of the MATERIALS to be analyzed, microspectrophotometers are the perfect tool.  Able to analyze micro-scale samples by absorption, reflectance or even fluorescence, these tools are easy-to-use and very accurate.  Their flexibility and accuracy make them very importance for analyzing everything from the optical effects of BUTTERFLY WINGS to surface plasmon resonance based sensors. 

Explanation:

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ANSWER:

TRY it out

ggg

FLUORINE is the most ELECTRONEGATIVE ELEMENT in PERIODIC table

Answer:

as per your question,

Explanation:

Molecular Orbitals for Heteronuclear Diatomic MOLECULES. Diatomic molecules with TWO different atoms are called heteronuclear diatomic molecules. ... On AVERAGE, they are closer to the B atom, resulting in a polar covalent bond. A molecular orbital energy-level diagram is always skewed toward the more ELECTRONEGATIVE atom

Explanation:

the process of FORMING a molecule of higher MOLECULAR mass by COMBINING similar molecules of low molecule mass

ANSWER:

H²S + CUSO4 = CUS + H²SO4

ANSWER:

hydrogen

helium

lithium

beriliyum

boron

carbon

nitrogen

oxygen

florine

neon

sodium

magnesium

aluminium

silicon

phosphorus

sulphur

chlorine

argon

potassium

calcium

Answer:

We can classify acid on many types

1.on the basis of its source

2.on the basis of presence of water

EX of acid - acetic acid, sulphuric acid, nitric acid, lactic acid, HYDROCHLORIC, etc..

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Answer:

when TEMPERATURE INCREASES it's FORM is gas.

when temperature DECREASES it's form is ice.

EXPLANATION:

WT is ur QUESTION DEAR..plz complete it

ANSWER:

nice QUESTION. keep ASKING such questions.

ANSWER:

EXPLANATION:

COTTON TEXTILE

Jute textile