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Answer:

heavy WATER is USED as atom in nuclear RADIATION

Answer:

Salts that contain WATER molecules are KNOWN as hydrated salts. For EXAMPLE: copper SULPHATE, gyspsum, sodium carbonate, etc.

Explanation:

Answer:

Magnetization of iron occurs to due to the temporary ALIGNMENT of the electrons present in it in one direction only. This is done by rubbing the north POLE of the magnet on the middle if the magnet TOWARDS its END. It is temporary because after some time, the electrons DIVERT from the alignment.

However, iron rusts because its surface adsorbs oxygen (meaning only the surface reacts with oxygen). It is a chemical reaction where new compounds are formed. So obviously, rusting of iron is a chemical change, but magnetization of iron is not.

Explanation:

EXPLANATION:

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Answer:

[a] Iron- 26

[c] OXYGEN- 8

I EVEN gave the atomic numbers.

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Answer:

Water Of crystallisation

• Copper SULPHATE crystals contain 5 molecules of water of crystallisation(CuSO4.5H2O) It is blue in colour.
• Sodium CARBONATE crystals contains 10 molecules of water of crystallisation(Na2CO3.10H2O)
• Calcium sulphate crystals contains 2 molecules of water of crystallisation(CaSO4.2H20)

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ANSWER:

S

F are the ANSWERS RESPECTIVELY

ANSWER:

ok

Explanation:

(i) Thin METAL of pure copper metal

(II) Anode reaction:  

IMPURE rod

Cu

​  

→Cu  

2+

(AQ)+2e  

−

ANSWER:

/14-a-hydrocarbon-contains-48-g-of-carbon-per-gram-ofhydrogen-calculate-a-the-gram-2/. I

EXPLANATION:

/14-a-hydrocarbon-contains-48-g-of-carbon-per-gram-ofhydrogen-calculate-a-the-gram-2/.

An atom is the smallest constituent unit of ordinary matter that constitutes a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. 

Characteristics of atom :-

Atoms are the smallest FRACTION of an element that can EXIST, and still show the characteristics of the element. Atoms themselves are composed essentially of ELECTRONS (1 NEGATIVE charge), protons (1 positive charge), and neutrons (no charge).

ANSWER:

ANSWER

Molecular formula of calcium phosphate is CA

3

(PO

4

)

2

.

Its MOLAR mass is 3(40)+2(31)+8(16)=310 g/mol.

Percent of calcium =

310

120

×100=38.71%

Percent of phosphorus =

310

62

×100=20.0%

Percent of oxygen =

310

128

×100=41.29%

Answer:

GERMINATION of SEEDS is a permenent change. Its is a slow IRREVERSIBLE chemical change as a SEED will develop into a plant

Explanation:

Answer:

38 ATP

Explanation:

Ek KREBS cycle K DORAN 38 ATP produce hote H pr KUCH cells m 2ATP dobara se consume kr liye jate h

Answer:

Explanation: \bold{MOLECULAR \: WEIGHT \: OF \: POTASSIUM A: CHLORATE(KClO_3)}

K = 39

Cl = 35.5

O = 16

Molecular MASS = K + Cl + 3(O)

= 39 + 35.5 + 3(16)

= 39 + 35.5 + 48

=122.5 g

◼For Potassium (K)

Weight of pottasium present in potassium chlorate = 39 g

Answer:

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The photoelectric effect cannot be explained by classical theory. We can explain the photoelectric effect by assuming that radiation consists of photons (particles of light). Each photon carries a quantum of energy. The energy of a photon depends only on its frequency, which is the frequency of the radiation.

Photoelectric effect can only be explained by the quantum concept of radiation.

The observations of photoelectric effect experimentally provides with the following conclusions -

1) The PHOTOCURRENT is proportional to the intensity of incident radiation.

2) The MAGNITUDE of stopping potential and hence the maximum kinetic energy of emitted photoelectrons is proportional to the frequency of emitted radiation.

3) There exists a minimum threshold frequency so that if radiation of frequency lesser than this threshold frequency is incident on the metal surface, there is no photoemission irrespective of intensity of radiation.

Einstein's explanation -

Einstein used Max Planck's concept of quantized radiation packets each of an energy

E

=

h

ν

where

h

is Planck's constant and

ν

is frequency of radiation.

According to Einstein, a single photon upon being incident on the metal surface interacts with one electron and transfers it's entire energy to the electron.

Then it is emitted with a maximum kinetic energy,

K

max=hν−ϕ0

Where,

ϕ0

is the work function of the metal.

This explains the fact that maximum kinetic energy increases linearly with frequency of incident radiation.

Now for a frequency,

ν0

so that

hν0=ϕ0

implies that for radiation of frequency less than

ν

0

the maximum kinetic energy of the photoelectron turns out to be negative and hence, no photoemission is possible.

This explains the concept of threshold frequency

ν

0

below which photoemission is not possible even with an extremely intense beam of light.

Since

ϕ

0

depends on the metal and the nature of the surface, the work function and hence the threshold frequency varies from substance to substance.

Also intensity of radiation from the quantum concept is associated with NUMBER of photons incident on a unit area in unit time.

That is, a greater intensity implies that a greater number of photons are incident on the metal surface per unit area in unit time.

Now since a single photon interacts with a single electron causing the emission of the electron, a higher number of incident photons implies that a greater number of photoelectrons are emitted in unit time. Consequently, the current increases with the number of photons incident and hence with the intensity of radiation used.

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Answer:

Explanation:

Electrectrolysis of water is the decomposition of water (H2​O) into oxygen (O2​) and hydrogen gas (H2​) due to an ELECTRIC current being passed through the water.

An electrical power source is connected to two electrodes, or two plates (typically made from some inert metal such as platinum, stainless steel or IRIDIUM) which are PLACED in the water. Hydrogen will appear at the cathode (the negatively charged ELECTRODE, where electrons ENTER the water), and oxygen will appear at the anode (the positively charged electrode).

Answer:

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Explanation:

Joe M. Fowler BS, RQAP-GLP, ... James Greenhaw BS, LAT, in Nonclinical Study Contracting and Monitoring, 2013

Subpart A – General Provisions

This subpart OUTLINES various definitions and general responsibilities when conducting a GLP-compliant study.

Section 58.3 (Definitions)

This section defines various terms that are used throughout the GLPs. A few terms deserve special attention.

Good Laboratory Practices (GLPs)

Although GLPs were initially required for toxicological studies Christian (1995), this requirement was extended to all safety pharmacology studies in 1987 Sullivan (1995). The GLPs regulations are designed to ensure that safety-related studies are CONDUCTED under the direction of a study monitor and are audited by quality assurance personnel. In addition to toxicity and carcinogenicity tests, GLP also applies to pharmacodynamic studies designed to assess the potential for adverse effects Sullivan (1995). In general, most safety pharmacology studies are conducted under GLP conditions, with the majority of CONTRACT research ORGANIZATIONS being certified in this regard by regulatory authorities.

All ORBITALS that have the same value of n ... subshell increases with L (s < p < d < f) . 3. Magnetic Quantum Number (ML): ml = -l ... 3. 2p. 6. 3 ____ ______ ____. ____ ____. ____ ______ ____. ____ ____.

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EXPLANATION:

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Answer: So metals have CONTAIN free ELECTRONS in their outermost shell while non-metals don't and these electrons are ones which cause the electric current by their coordinated movement. Thats why, most non-metals are poor conductors of electricity(i.e. due to a deficiency of free electrons).

In GRAPHITE, the carbon atoms are joined together and arranged in LAYERS. The LINKS between the carbon atoms in the layer are strong, but the links between the layers are weak. ... Graphite is a non-metal and it is the only non-metal that can conduct electricity.

Explanation:

EXPLANATION:

PLEASE can you TYPE this SENTENCE in ENGLISH .

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Answer:

i) SOLUTIONS of acids and bases are often good conductors of electricity because when dissolved in WATER, they form/separate into ions (anions and cations) which are ideal for conducting electricity.

Explanation:

Solutions that conduct electricity have ions in them. These ions allow for the CURRENT to pass through the solution.

Strong acids completely DISSOCIATE into

H

+

ions and some other (-) CHARGED counter ion. In this way, a solution of simple acid like HCl that is 1M, for example, will be 2 M in total ions (1M + ions, 1M (-) ions). These ions allow the solution to conduct electricity.

ANSWER:

NON METAL- oxygen

metal- SODIUM

base- sodium hydroxide

acid- HYDROCHLORIC acid

Explanation:

-

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when hydrochloric acid REACTS with sodium sulphite, it FORMS sodium chloride and sulphur dioxide which GIVES SMELL of burning sulphur.

ANSWER:

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thє αcídítч σf phєnσls ís duє tσ íts αвílítч tσ lσsє hчdrσgєn íσn tσ fσrm phєnσхídє íσns. ín α phєnσl mσlєculє, thє sp2hчвrídísєd cαrвσn αtσm σf thє вєnzєnє ríng αttαchєd dírєctlч tσ thє hчdrσхчl grσup αcts αs αn єlєctrσn-wíthdrαwíng grσup

Explanation:

Electrolysis of Sodium Chloride | Introduction to Chemistry - Lumen Learning

At the cathode (C), water is REDUCED to hydroxide and hydrogen gas. The net process is the electrolysis of an AQUEOUS solution of NaCl into industrially useful products sodium hydroxide (NaOH) and CHLORINE gas. ... So, the electrolysis of WCl4 PRODUCES W and Cl2.

Answer:

GIVEN CHOICE are : -

carbon, SULPHUR, MAGNESIUM and oxygen..

here except magnesium all remaining elements are non METALS where as magnesium is a metal.

so the odd out is magnesium...

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ANSWER:

l

Explanation:

Answer:

On catalytic dehydrogenation, primary alcohols give aldehydes, secondary alcohols give ketones and TERTIARY alcohols give alkene. Primary and secondary alcohols SHOW a type of beta-elimination in which −OH group from alfa and hydrogen from beta carbon.

Explanation:

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Answer:

True

Explanation:

When two FORCES are acting in OPPOSITE DIRECTION then they are of DIFFERENT strength / magnitude.

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ANSWER:ll

Explanation:

ANSWER:

MAGNESIUM

Explanation:

Because magnesium is a METAL..

ANSWER:

PLEASE WRITE in ENGLISH................................

Explanation:

ANSWER:

Flying SQUIRRELS can be seen on the REGION of EASTERN Himalayas and North east.

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Answer:

ACETONE is an organic COMPOUND having the formula 2 CO.

An alkene, 2,3 -Dimethyl-2-butene undergo reductive OZONOLYSIS and form acetone. It is a symmetrical alkene.

Explanation:

METAL chlorides.

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Answer:

At 10 ∘C , the solubility of POTASSIUM CHLORIDE is measured to be 31.2⋅g PER 100⋅g of water

Answer:

Explanation:

 schottky defect is also called as vacancy defect in this defect the cation and ANION present should be of same SIZE in this defect the density of the compound REMAINS the same as the cation and anion are absent in their stoichiometric RATIO

  FRENKEL defect is  also called as the interstecial   in this defect the cation and anion present have a large difference in their size density of the compound gets affected as the cation and anion are not absent in stoichiometric  ratio

Answer:

In the experimental (non-clinical) research arena, good laboratory practice or GLP is a quality system of management controls for research laboratories and organizations to ensure the uniformity, consistency, reliability, reproducibility, quality, and integrity of products in development for human or animal health (including pharmaceuticals) through non-clinical SAFETY tests; from physio-chemical properties through acute to chronic toxicity tests.[1][2]

GLP was first introduced in New Zealand and Denmark in 1972, and later in the US in 1978 in response to the Industrial BioTest LABS scandal. It was followed a few years later by the Organization for Economic Co-operation and Development (OECD) Principles of GLP in 1992; the OECD has since helped promulgate GLP to many countries.

GLP applies to non-clinical studies conducted for the assessment of the safety or efficacy of products in development (including pharmaceuticals) for man, animals and the environment.[1] GLP, a data and operational quality system, is not the same as standards for laboratory safety - appropriate gloves, glasses and clothing to handle lab MATERIALS safely. The principles of GLP aim to ensure and promote safety, consistency, high quality, and reliability of chemicals in the process of non-clinical and laboratory testing. GLP is not limited to chemicals and ALSO applies to medical devices, food additives, food packaging, colour additives, animal food additives, other non-pharmaceutical products or ingredients, biological products, and electronic products.

ANSWER:

UR QUESTION is incomplete

but the answer MAY be ALCL3

Answer:

Groups and PERIODS are two ways of categorizing ELEMENTS in the periodic table. Periods are horizontal ROWS (ACROSS) the periodic table, while groups are vertical COLUMNS (down) the table. Atomic number increases as you move down a group or across a period.

EXPLANATION:

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Answer:

Density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre. For example, the density of water is 1 gram per cubic centimetre, and Earth’s density is 5.51 grams per cubic centimetre. Density can also be expressed as kilograms per cubic metre (in MKS or SI units). For example, the density of air is 1.2 kilograms per cubic metre. The densities of common solids, liquids, and gases are listed in textbooks and handbooks. Density offers a convenient means of OBTAINING the mass of a body from its volume or vice versa; the mass is equal to the volume MULTIPLIED by the density (M = Vd), while the volume is equal to the mass divided by the density (V = M/d). The weight of a body, which is usually of more practical interest than its mass, can be obtained by multiplying the mass by the acceleration of gravity. Tables that list the weight per unit volume of substances are also available; this quantity has VARIOUS TITLES, such as weight density, specific weight, or unit weight. See also specific gravity. The expression particle density refers to the number of particles per unit volume, not to the density of a SINGLE particle, and it is usually expressed as n.

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ANSWER:

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ANSWER:

A ONE is the INCORRECT answer

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Answer:

3) LOWER ATOMIC NUMBER than URANIUM

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