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Answer:

Serious diseases LIKE polio and chicken pox are also CAUSED by VIRUSES. Diseases like dysentery and malaria are caused by protozoa(PROTOZOANS) whereas TYPHOID and tuberculosis (TB) are bacterial diseases. You have learnt about some of these microorganisms in Classes VI and VII.

Explanation:

ANSWER:

किसी रासायनिक अभिक्रिया के प्रतीकात्मक निरूपण को रासायनिक समीकरण (CHEMICAL EQUATION) कहते हैं।

मिथेन का दहन

इसे समीकरण इसलिये कहा जाता है कि इसमें समता चिन्ह (=) का प्रयोग किया जाता है (= के स्थान पर → का भी प्रयोग किया जाता है)। समता चिन्ह के बायीं ओर क्रिया करने वाले (अभिकारक) (REACTANTS) लिखे जाते हैं तथा इसके दायीं ओर उत्पाद (PRODUCTS) लिखे जाते हैं। समीकरण का अधार यह है कि किसी रासायनिक अभिक्रिया में भाग लेने वाले भिभिन्न तत्वों के परमाणुओं की संख्या अभिक्रिया के उपरान्त भी अपरिवर्तित रहती है।

सबसे पहले रासायनिक समीकरण द्वारा रासायनिक अभिक्रिया का निरूपण सन १६१५ में जीन बेग्विन ने किया।

ANSWER:

जतजतढछढछढथढछढछडचडचडचडचडचबफतसतबतबचबच

Answer:

Economics can be defined in a few different WAYS. It's the STUDY of scarcity, the study of how people USE resources and respond to INCENTIVES, or the study of decision-making. It often INVOLVES topics like wealth and finance, but it's not all about money.

ANSWER:

I don't KNOW I am REALLY SORRY

Answer:

In the question it is said that the decay CONSTANT of a radioactive element is defined as the reciprocal of the time interval when the NUMBER of ATOMS of the radioactive ELEMENTS falls. ... From this we GET that the number of decayed atoms is 0.3679 times the original number.

Explanation:

ALLOYS do not melt easily at high temperatures, so alloys are PREFERRED over pure metals. -Alloys are HARDER than pure metals. -Alloys have higher tensile strength than their CONSTITUENTS. -Color of pure metal can be modified by mixing it with other metal or nonmetal and forming an alloy.

Answer:

I don't KNOW this language pls TRY later

Answer:

TYPES of IONS

Anions have more electrons than protons and so have a NET negative charge. Cations have more protons than electrons and so have a net positive charge. ZWITTERIONS are neutral and have both positive and negative charges at different locations throughout the molecule.

Answer:

NAHI PATA ha bhai PLEASE find the ATTACHMENT of the answer

ANSWER:

Decay constant, PROPORTIONALITY between the size of a population of radioactive atoms and the RATE at which the population DECREASES because of radioactive decay. ... The TIME required for half of the original population of radioactive atoms to decay is called the half-life.

The photoelectric effect is the emission of electrons when electromagnetic radiation, such as light, hits a material. Electrons emitted in this MANNER are called photoelectrons. The phenomenon is studied in condensed matter physics, and SOLID state and quantum chemistry to draw INFERENCES about the properties of atoms, MOLECULES and solids. The effect has found use in electronic DEVICES specialized for light detection and precisely timed electron emission.

ANSWER:

ooopppsssssssss sorryyyyýyy don't KNOW

EXPLANATION:

SORRY

ANSWER:

Wires, Poles , SCREWDRIVERS and other INSTRUMENTS, Hand Gloves. ETC

Answer:

EXPLANATION:

i don"t KNOW plz mark me as a BRAINIEST

ANSWER:

I any ONE of

Explanation:

I am REALLY SORRY I am really sorry I am really

EXPLANATION:

Explanation:

CONCENTRATION= 50/50×100= 100%

I THINK I don't know PROPERLY this is jzt a GUESS :)

EXPLANATION:

ihrklrhdvjsl lhvejrphfv nohsj

ANSWER:

HII I HOPE it's HELPFUL to U

ANSWER:

How are you SISTER TELL to me

Answer:

8 electrons

So... for the element of OXYGEN, you already know that the atomic NUMBER tells you the number of electrons. That means there are 8 electrons in an oxygen atom.

Explanation:

Answer

Correct option is

D

13

Electronic configuration of Cr (atomic number 24) =[Ne]3S

2

3p

6

3d

5

4s

1

Therefore number of electrons in M shell (THIRD shell) =2+6+5=13.

ANSWER:

answer is

EXPLANATION:

( B ) - Li < Be < C < O < F

please mark as brainlist

ANSWER:

Potassium sulphate ionic solid Tin Metallic solid BENZENE Molecular (non-polar) solid UREA Polar molecular solid AMMONIA Polar molecular solid Water Hydrogen bonded molecular solid ZINC sulphide Ionic solid Granhite Covalent or network solid Rubidium Metallic solid Argon Non-polar molecular solid Silicon carbide Covalent or network solid

ANSWER:

Taj the LINK ☺️ I have not received my ORDER and more than TYPE of cumulative

Answer:

The area occupied under the VELOCITY-time graph is the distance TRAVELLED by the moving body. The area under a velocity-time graph is the displacement. The displacement of an object moving with a constant velocity is EQUAL to the product of the velocity and the AMOUNT of time the object is in motion.

Explanation:

Hope U understand

ANSWER:

I THINK I will TRY LATER no no I am TRYING

We KNOW that

Answer:

Molarity is DEFINED as the MOLES of a solute per liters of a solution. Molarity is also KNOWN as the molar CONCENTRATION of a solution.

Explanation:

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Answer:

copper (II) oxide

Upon HEATING, the copper metal melts gradually and turns black on the surface. This is because the copper POWDER PRESENT in the china dish reacts with the ATMOSPHERIC oxygen and FORMS copper (II) oxide.

REQUIRED ANSWER:

☑ Any reaction that evolves heat as a by-product of the reaction is called an exothermic reaction. > Therefore, respiration is an exothermic reaction and the heat produced is DISTRIBUTED throughout the body as energy and that is the REASON when we breathe out or breath is warm.

I THINK 10% is the RIGHT ANSWER

REQUIRED Answer:

☑ This energy comes from the DECAY of an unstable NUCLEUS. Any nuclear species (particular configuration of protons, neutrons and energy) that exhibit RADIOACTIVITY are known as radioactive nuclei.

ANSWER:

क्या ऐसे व्यक्ति से कोविड-19 का संक्रमण फैल सकता है जिसमें इस बीमारी के कोई

Explanation:

Answer:

ATOMIC weight of the GOLD (Au) is = 196.97 (197g apprx.) That means 6.022X10^23 atoms WEIGH 196.97 g.

Explanation:

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Explanation:

3

Number of SIGNIFICANT figures are 3, because 103 is DECIMAL MULTIPLIER

Required ANSWER:

☑ Coal is KNOWN as BLACK GOLD because it's RARE like gold and black in color.

ANSWER:

I'm SORRY I don't KNOW sorry

Answer:

the WATER is a compound and not a mixture because it is made up of only one kind of ELEMENT i.e. oxygen and HYDROGEN atoms and HENCE, is a diatomic molecule.

Answer:

112

Explanation:

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Acids:-

Acids: Acids are sour in taste, turn blue litmus red, and dissolve in water to release H+ ions. Example: Sulphuric acid (H2SO4), Acetic Acid (CH3COOH), Nitric Acid (HNO3) etc. Properties of Acids: Acids have a sour taste. Turns blue litmus red.

Bases:-

Base, in chemistry, any substance that in water solution is slippery to the touch, tastes bitter, changes the colour of indicators (e.g., turns red litmus paper blue), reacts with acids to form salts, and promotes certain chemical reactions (base CATALYSIS).

Salts:-

substance produced by the reaction of an acid with a base. A SALT consists of the positive ion (cation) of a base and the negative ion (anion) of an acid. ... The TERM salt is also used to refer specifically to common table salt, or sodium chloride.

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ANSWER:

HI odisa friends i am SHRIYA SARAN and NON economic

Answer:

THUS, the EDGE length (a) or side of the cube and the radius (r) of each particle are RELATED as a = 2r. Thus the radius of an atom is HALF the side of the simple cubic unit CELL. Since a simple cubic unit cell contains only 1 atom. The packing efficiency of the simple cubic cell is 52.4 %

Answer:

Henry's law is one of the GAS laws STATES that: at a constant TEMPERATURE, the amount of a given gas that DISSOLVES in a given type and volume of liquid is directly proportional to the PARTIAL pressure of that gas in equilibrium with that liquid.

Explanation:

Explanation:

Complete step-by-step answer: Sodium ethoxide is defined as an organic COMPOUND having a CHEMICAL formula C2H5ONa. ... When sodium ethoxide is reacted with ETHANOYL chloride it results in the formation of an ester compound that is ethyl ethanoate

ANSWER:

UR answer is in ATTACHMENT

Answer:

CLASSIFICATION of paints by physical type

Solvent-borne paints contain up to 80% of solid constituents (binders, PIGMENTS and additives) dispersed in the organic solvent. Solvent-borne paints DRY fast and may contain a wide range of binders. ... Water-borne paints contain water as the paint solvent.

ANSWER:

POTASSIUM BICARBONATE

Answer:

1. Ammonium:

VALENCY- 1

Formula- NH4

2. Sulphate

Valency- 2

Formula- SO4

3. Nitrate

Valency- 1

Formula- NO3

4. IODIDE

Valency- 1

Formula- I

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ANSWER:

ऊष्मागतिकी में, एन्ट्रॉपी एक भौतिक राशि है जो सीधे मापी नहीं जाती बल्कि गणना (कैल्कुलेशन) द्वारा इसका मान निकाला जाता है। इसका प्रतीक S है। किसी निकाय की कुल ऊर्जा का वह भाग जिसे उपयोग में नहीं लाया जा सकता (दूसरे शब्दों में, कार्य में नहीं बदला जा सकता), उस निकाय की एन्ट्रॉपी कहलाती है।