Explore topic-wise InterviewSolutions in Current Affairs.

To calculate the molecular mass of a compound, you need to know two things. The first is the molecular formula, and the second is the atomic mass NUMBER of each of the elements that comprise it. The atomic mass number for each element is listed in atomic mass units under its symbol in the periodic table. This unit is DEFINED in such a way that the mass number of each element CORRESPONDS to the mass of one MOLE of the element in grams. A mole equals Avogadro's number (6.02 x 1023) of ATOMS or molecules.

Answer:

BOHR'S AMOM    MODEL IS USED AT PRESENT .

EXPLANATION:

EXPLANATION:

wedge DASH is a means of representing molecules by three TYPES of lines for a three dimensional STRUCTURE and fischer projection is a way to represent three dimensional structures as two dimensional.

Answer:

There is a vast difference between these two. Alc KOH dissociates in water to GIVE RO- IONS which is a STRONG base and abstracts hydrogen giving rise to elimination where AQ KOH dissociates in water giving - OH ions which is a good nucleophile and prefers substitution.

꧁ Mark As BRAINLIEST Answer ꧂

And Follow Me

Answer:

YES heat CONTENT of stream is MERE tha boling water and it burns more hazardously as compared to hot water.

If it helps kindly mark as BRAINLIEST

Explanation:

ANSWER:

Co-valent BOND BCZ it can be BREAK EASILY..

ANSWER:

3+

mark my answer as BRAINLIEST if you like

Explanation:

we feel relief under a fan when we prespire because WIND speed increases as the fan on and it increase the evaporation rate due to which the evaporation OCCURS FASTLY and leave a cooling effect BEHIND it

Explanation:

Gas MOLECULES are very loosely packed. So gas expands - no shape

Gas occupies the entire CONTAINER in which it is RELEASED. If the sizes of the containers VARY, volume of the gas also varies.

Please mark as brainliest if it is helpful. THANK you

Answer:

Silver CHLORIDE is stored in dark COLOURED BOTTLES because it reacts with sunlight and DECOMPOSES to form silver and chlorine gas. So to prevent this it is stored in dark coloured bottles. the type of REACTION is photolytic decomposition reaction

Explanation:

MARK MY ANSWER AS BRAINLIEST

Answer:

sulphur dioxide is a major component of acid rain since it MIXES with VAPOUR in the atmosphere REACTING to PRODUCE H2SO4

Answer:

Devarda's ALLOY is alloy used in REDUCTION of NITRATES to ammonia

Answer:

1. Rancidity can be prevented by adding anti oxidant to food containing FAT and oil
2. Rancidity can be prevented by packing fats and oil containing food in nitrogen because nitrogen is not reactive as oxygen
3. Storing food in airtight containers to slow the process of RANCIDIFICATION.
4. Refrigerating food also HELPS to slow down rancidification

mark as brainliast plz

Answer:

SICCIN a Turkish movie with ENGLISH subtitles!!!!

It's a GOOD movie you may GET it from You Tube!!!

Explanation:

Hope it HELPS!!!

ANSWER:

a

Explanation:

haksb JAHA NJ s aiiwbs jkqisqnj joqj asga WB

What are physical PROPERTIES of Geometrical Isomers?

1. Any of two or more stereoisomers that differ in the arrangement of ATOMS or groups of atoms AROUND a structurally rigid bond.
2. Geometric isomers differ from one ANOTHER in physical properties like melting & boiling points.

Answer:108

Explanation:

Explanation:

The molar mass of silver is 107.9 g/mol.(rounding to 108). As 1 mole = 6.023 X 10^23 molecules (Avogadro's number), 108 g of Silver CONTAINS 6.023 x 10^23 molecules. So, mass of 1 ATOM of silver = 108 / 6.023 x 10^23 = 1.7931 x 10^-22 g.

Answer:

A CELL Mechanism (previously REFERRED to as Cell Process), as used in neuroConstruct is an abstraction of an electrophysiological mechanism present on a cell. The three MAIN types are Channel Mechanism, Synaptic Mechanism and Ion CONCENTRATION (ALTHOUGH 2 more: Point process and Gap junction are being added).

Hope it helps uh!

Answer:

1- 2 METHYL shift

completely substituted DIOLS are CALLED pinacols

ie, R2cOH-R2cOH

ANSWER:

as because it can be EASILY PLACED INSIDE NUCLEUS

ANSWER:

CORRECT answer is 2 if U SEE this that is 2

Answer:

A) NaHCO3 is the FORMULA of BAKING SODA

HOPE IT HELPS YOU❣❣✨✨✌✌

ANSWER:

it can be SEPARATE by USING FRACTIONAL DISTILLATION

Answer:

n2 = 5 and Z = 3

Explanation:

Here, It is given that an electron in a hydrogen like species is in the excited STATE (n2). the wavelengths corresponding to a TRANSITION second orbit is 48.24nm

∴ n1 = 2 then λ = 48.24 nm

=>  from same orbit, WAVELENGTH corresponding to a transition to third orbit is 142.46 nm.

∴ n2 = 3 then  λ = 142.46 nm

=> To calculate n2 and Z we can use the below formula:

1/λ = R_H*Z² [1/n₁² - 1/n₂²]

1.48.24 = R_H*Z² R_H*Z² [1/n₁² - 1/n₂²]...(1)

1/142.46=R_H*Z² [1/9 - 1/n₂²] ...(2)

=> DIVIDING eq (1) by (2), we get

142.46/48.24 = n₂² - 4/ n₂² - 9 * 9/4

1.31 = n₂² - 4/ n₂² - 9

n₂ = 5

=> By putting this value in equation (1) we can calculate the ATOMIC number:

Rh = 109677 cm⁻¹

λ = 48.24 * 10⁻⁷ cm

1/48.24 * 10⁻⁷ = 109677 * Z² [1/4 - 1/25]

Z = 3

GO to ur school and go inside LABORATORY u will GET there

ANSWER:

No change in volume.

Explanation:

Volume change will occur once the liquid starts boiling that is at 100c.

The water will convert into GAS and the volume of the liquid will DECREASE on further heating.

Hope it HELPS you.

PLEASE mark it as the Brainliest.

Answer:

Earthen pots have SMALL pores through which the WATER seeps and as EVAPORATION leads to cooling of the SUBSTANCES the water cools down very easily.

Answer:

YELLOW colour in NaCI is due to metal excess defect due to which unpaired ELECTRONS occupy anionic sites, KNOWN as F-centres. These electrons absorb energy from the visible region for the excitation which makes crystal APPEAR yellow.

Explanation:

mark my answer as BRAINLIEST and also follow me

When formaldehyde and potassium HYDROXIDE are heated?

=> When formaldehyde and potassium hydroxide are heated then we get METHYL ALCOHOL.

ANSWER:

I did not KNOW this answer SORRY

ANSWER:

When Magnesium ribbon burns in PRESENCE of oxygen, we COULD OBSERVE a dazzling white flame and a white substance is formed which is magnesium OXIDE. The reaction is a combination reaction.

  2Mg + O2 = 2MgO

Explanation:

mark  my answer as brainliest

Explanation:

Your Answer

Unlike the other electrophilic aromatic substitution reactions, sulfonation is reversible. Removal of water from the SYSTEM favours the formation of the sulfonation PRODUCT. HEATING a sulfonic acid with aqueous sulfuric acid can result be the reverse REACTION, desulfonation.

I HOPE it can help you...

Answer:

The equivalent WEIGHT of B(OH)3 is molecular weight/1.

Explanation:

We know that the Boron is ATTACHED to three other hydroxyl group so the

n-factor MUST be 3. Hence, we know that the formulae of equivalent weight of compound is molecular weight / n-factor hence the equivalent weight must have been molecular weight /3.

Since, the B(OH)3 is a mono-basic acid hence on REACTING with WATER it will release B(OH)4 after reaction. This, concludes that the n-factor of the B(OH)3 is 1. So, the equivalent weight is molecular weight/1. Since the molecular weight of B(OH)3 is 61 g/mol hence the equivalent weight is 61.

ANSWER:

DALTON is unit of mass

Explanation:

THANKS for ASKING question

FOUNDER of vinayanagara KINGDOM is BUKKA RAYA 1

Answer:

This is for making SEVERAL products as fertillizers,nitric ACID is USED to make dyes,

HOPE this helps you.......

HEY USER ,

HERE IS OUR ANSWER :-

✍️ The RIGHT OPTION is option D none of these .

HOPE IT HELPS YOU ❣️

ANSWER:

Ask on Google u will get EVEN BETTER EQUATIONS

TUNGSTEN has the HIGHEST MELTING POINT..

ANSWER:

HYDRO CHLORIC ACID,lemon, honey

Why medical profession is a very SENSITIVE profession?

Medical profession is very sensitive and intellectual where human LIFE is at risk.

A successful effort of a doctor can save a life. Due to that, a doctor is KNOWN as 2nd God.

When he attempts a major and long surgery, his endurance, HARD work and mental ability SPOTLIGHT his character.

Explanation:

This increase is generated by INCREASING forces per nucleon in the nucleus, as each additional nucleon is attracted by other nearby nucleons, and THUS more tightly bound to the WHOLE. ... Finally, in elements HEAVIER than xenon, there is a decrease in binding ENERGY per nucleon as atomic number increases.

I hope it can help you..

Answer:

It REACT with it and form Hcl and CARBON DIOXIDE

ANSWER:

They REACT with each other

Answer:

2NH3+CuSO4———(NH3)2SO4+Cu

latric ACID , URIC acid, CITRIC acid ,meric acid

Answer:

Zr and HF have almost IDENTICAL atomic radii due to LANTHANOID CONTRACTION. Hf is post lanthanoid element. As a result of lanthanoid contraction, the atomic size of Hf is similar to Zr ( element of PREVIOUS period)

Answer:

An organic acid is an organic compound with acidic properties. The most COMMON organic acids are the carboxylic acids, whose acidity is associated with their CARBOXYL GROUP –COOH

Examples of acids include the inorganic substances KNOWN as the mineral acids—sulfuric, nitric, hydrochloric, and phosphoric acids—and the organic compounds belonging to the carboxylic acid, sulfonic acid, and PHENOL groups.