Explore topic-wise InterviewSolutions in .

ANSWER:

The test can be performed USING litmus paper or an AQUEOUS solution containing litmus dye. ... Red litmus paper can indicate ALKALINITY with a change to blue. In general, litmus paper is red below a pH of 4.5 and blue above a pH of 8.3. If the paper turns purple, this INDICATES the pH is near neutral.

Answer:

There are FOUR natural STATES of matter: Solids, liquids, GASES and plasma. The fifth state is the man-made Bose-Einstein condensates. In a solid, particles are packed tightly together so they don't MOVE much.

Answer:

Chemical ENERGY has no sub-types

It is the part of classified Energy forms

Explanation:

You may like it to know-

1. Bond energy- When a compound dissociates by heterolysis it result in EXOTHERMIC reaction, leading to heat evolution.

2. Nuclear energy- When a heavy element, proton : neutron RATIO 2:3 or more, continuously emits its subatomic particles in form of Alpha particles, beta Particles, GAMMA rays.

2. Anhiliation energy- When matter antimatter collision takes place result in release of tremendous energy. It leads to much broader concept of particle Physics. Not going in DETAILS.

Answer:

The number of NUCLEONS (both protons and NEUTRONS) in the nucleus is the atom's MASS number, and each isotope of a GIVEN element has a different mass number. For example, carbon-12, carbon-13, and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13, and 14, respectively

.

.

.

.

they r ignoring you but I'm not..

if u leave than I also and never talk to u..okk

plz

and wht this mean u won't GO but won't come?

ㅠ-ㅠ

.Hot liquids dramatically increase the amount of harmful chemicals RELEASED by plastic bottles, according to a STUDY. Scientists found that polycarbonate plastic bottles released a known environmental POLLUTANT 55 times more quickly when filled with BOILING water

ANSWER:

The number of nucleons (both protons and NEUTRONS) in the nucleus is the ATOM's mass number, and each isotope of a given element has a different mass number. For example, carbon-12, carbon-13, and carbon-14 are THREE isotopes of the element carbon with mass numbers 12, 13, and 14, respectively.

Explanation:

Hope this helps you mate xd.

Answer:

: X element is Boron , Its atomic number is 5 , Its mass number is 11 , Valency of atoms is 3. Y element is Oxygen , Its atomic number is 8 , Its mass number is 16 , Valency of atoms is 5

ANSWER:

4Cu + S8 → 4CuS(S)

Is the Answer

MOLE fraction REFERS to a unit of concentration. It is a formula in the field of PHYSICS that is unitless EXPRESSION. Mole fraction is equal to the number of a component's moles divided by the total number of a solution's moles.

Thanks Answer Please

ANSWER:

[NE] 3s² 3p⁶

Explanation:

HOPE it will HELP you

ANSWER:

CA(OH)2'.n2

Na(Oh)2;h2so4

mgoh2:HCL

Explanation:

We have to find the number of MOLECULES present in 16g of solid sulphur

Solution :-

➜ The MOLECULAR mass of the sulphur molecule is 32 × 8 = 256 u.

➜ 1 mole of sulphur molecules is equal to 256 grams.

➜ This means 256 g of solid sulphur contains = 6.022 x 10²³ molecules.

➜ Then, 16 g of solid sulphur contains =6.022 x 10²³ / 256 = 16 molecules

= 3.76375 x 10²² molecules

Therefore, 16 g of S8 contains 3.76 x 10²² molecules

Answer:

Reason:-

a) Because the PH range for survival of living ORGANISMS is 7.0 to 7.8 but the pH value of acid rain is less than 7 which is harmful for them.

b) Bacteria present in the mouth produce acids by degradation of sugar and food particles remaining in the mouth after EATING food. Using toothpastes, which are generally basic, for cleaning the teeth can neutralise the excess acid and prevent tooth decay.

ANSWER:

PLEASE MARK as BRAINLIST answer

Answer:

HII AP kon pahani NHI

SAY your NAME please

Answer:

YES why not.

Explanation:

EVERYTHING in the periodic table is an element WHETHER it is a solid,liquid or GAS

Exothermic reactions transfer energy to the surroundings and the TEMPERATURE of the surroundings increases. Endothermic reactions take in energy and the temperature of the surroundings decreases. Combined SCIENCE. Energy CHANGES.

Answer:

•A virus is a submicroscopic INFECTIOUS agent that REPLICATES only inside the living CELLS of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.

•They are acellular, that is, they contain no cytoplasm or cellular ORGANELLES. They carry out no metabolism on their own and must replicate using the host cell's metabolic machinery. In other words, viruses don't grow and divide. Instead, new viral components are synthesized and assembled WITHIN the infected host cell.

•Viruses cause familiar infectious diseases such as the common cold, flu and warts. They also cause severe illnesses such as HIV/AIDS, Ebola, and COVID-19. Viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves.

Explanation:

plz mark me as brainliest .✨

hope you like it and understand it !❤️

ANSWER:

∆H =∆E+P∆V

Explanation:

2Al(s) + FE2O3(s) comverted into 2FE(s) + AL2O3(s)

Answer:

IGNEOUS ROCKS :-

1.granite

2.pegmatite

sedimentary rocks:-

1.limestone

2.Shale

EXPLANATION:

HOPE IT HELP'S YOU

THANK YOU

Explanation:

SHARE complete QUESTION to GET it ANSWERED rather than spamming

Answer:

It is common for CHILDREN to limp for a few weeks after a leg cast is removed (up to a year for a thigh/femur fracture). The child MAY limp with or without pain. If the limping becomes worse, not better, over the first 2 weeks, or if the pain PERSISTS, you should return to be rechecked.

ANSWER:

CHLORINE HYDROGEN, SODIUM HYDROXIDE

A data object is a REGION of storage that contains a VALUE or group of values. Each value can be ACCESSED using its identifier or a more complex expression that refers to the object. In addition, each object has a unique data type.

Answer ❤️

the term atomic number convey denoted by the SYMBOL Z , INDICATES number of protons present in the nucleus of an ATOM which is also EQUAL to the number of electron in an uncharged atom. the number of neutrons is represented by the neutron number (N).

hope help you

brainlist please ❤️ UFF

Neon is also used to make high-voltage indicators and switching gear, lightning arresters, DIVING equipment and LASERS. LIQUID neon is an important cryogenic refrigerant. It has over 40 times more refrigerating CAPACITY per unit VOLUME than liquid helium, and more than 3 times that of liquid hydrogen.

ANSWER:

A SOLID has definite volume and shape, a LIQUID has a definite volume but no definite shape, and a gas has neither a definite volume nor shape. The CHANGE from solid to liquid usually does not significantly change the volume of a substance.

ANSWER:

Verbs have traditionally been defined as words that show action or state of being. ... Often, prefixes and suffixes (affixes) will signify that a word is a verb. For example, the suffixes -ify, -IZE, -ate, or -en USUALLY signify that a word is a verb, as in typify, characterize, IRRIGATE, and SWEETEN.

ANSWER:

COPPER oxide

Explanation:

Copper oxide is a BASE that do not DISSOLVE in water

ANSWER:

Diamond is the hardest SUBSTANCE on EARTH and is a non METAL.

Answer:

thik HAI BHAI okk you can be my FRIEND..

Explanation:

1.As the fire BLANKET completely surrounds the PERSON whose clothes CAUGHT fire, it seals the person's body surface around the fire and cut's off the oxygen supply to the fire, thereby putting it out. HENCE fire blanket acts as a fire extinguisher and stops the fire from spreading

2. The substances which have very low ignition temperature and can easily catch fire with a flame are CALLED inflammable substances. Eg: Petrol and alcohol.

Hope this helped

nice PICS they three LOOK sooo CUTE

Answer:

Evaporation depends on the AMOUNT of water VAPOUR present in air (humidity). ... On a hot dry day, the amount of water vapour present in air is less. Thus, water present INSIDE the desert cooler EVAPORATES more, thereby cooling the surroundings more. That is why a desert cooler cools better on a hot dry day.

I hope my answer is correct and KEEP it up ☺️☺️☺️

Answer:

The phenomenon of change from ONE STATE of matter to another, and then BACK to the original state is CALLED inter- conversion.

ANSWER:

VOLUME of solid as the PARTICLES of LIQUIDS are more free to move thereby more volume. But in case of ICE, density of water is maximum at 4∘C. The density of ice is less than that of water. Therefore it floats on water.

EXPLANATION:

Answer:

Explanation:

H2O O2

H2O + O2 = H2O2 - CHEMICAL Equation Balancer.

Answer:

Atmospheric GASES can be liquefied by applying pressure and lowering temperature. When ENOUGH pressure is applied, the gases are HIGHLY COMPRESSED into a small volume. The particles of gases get so close together that they start attracting one another sufficiently to form a liquid.

Explanation:

HOPE it's helpful

Answer:

prophase

Explanation:

SYNAPSIS (also CALLED syndesis) is the pairing of two chromosomes that OCCURS during meiosis. It allows matching-up of homologous pairs PRIOR to their segregation, and possible CHROMOSOMAL crossover between them. Synapsis takes place during prophase I of meiosis.

Sugar is the generic name for sweet-tasting, soluble carbohydrates, many of which are used in food. Table sugar, GRANULATED sugar, or regular sugar, refers to SUCROSE, a disaccharide COMPOSED of glucose and fructose. Simple SUGARS, also called monosaccharides, include glucose, fructose, and galactose.

ANSWER:

ANS is :-

Explanation:

answer is:- abhinadan

SHREYA MINS Shreya manna shrey mtalab THANKS.

Answer:

I know 3 elements

Explanation:

ELEMENT SYMBOL VALENCY ION

COPPER. CU. 1&2. Cu+

Cu2+

Mercury. Hv. 1&2. HG+

Hg2+

Iron. Fe. 2&3. Fe2+

Fe3+ NOMENCLATURE

Copper- Cuprous (Cu+) and Cupric (Cu2+)

Mercury- Mercurous (Hg+) and Mercuric (Hg2+)

Iron- Ferrous (Fe2+) and FERRIC (Fe3+)

GREEK PHILOSOPHER DEMOCRITUS

Answer:

I think QUESTIONS Rong he PLZ full QUESTION

Answer:

OXIDATION STATE of CARBON in CHCL3 is :

A. + 1.

B. + 2.

C. + 4.

D. - 2.

AnswéR

• Majority elements in the periodic table are metals. This includes alkali metals, transition metals, lanthanides, actinides and alkaline EARTH metals. Metals are separated by nonmetals on a periodic table through a zigzag line STARTING from carbon, till radon. The elements between the two are phosphorus, selenium and iodine.

• Very few elements in the periodic table are non-metals. These are present on the right-hand side in the periodic table. Elements that come under non-metals are sulphur, carbon, all HALOGENS, phosphorus, hydrogen, OXYGEN, selenium, nitrogen and NOBLE gases.

In the periodic table, non-metals are located left of the halogens and to the right of the metalloids. Since noble gases and halogens are also non-metals, these elements are often referred to as non-metals.

Mark it as brainliest ✨

SILVER reacts with hydrogen sulphide to produce BLACK silver sulphate

i hope it helped u

pls mrk me as BRAINLIEST

and FOLLO me

EXPLANATION:

Ans 1 Drying of wet clothes

Ans 2 -100 degree Celsius

Ans 3A.Melting point: temperature at which the solid and liquid forms of a pure substance can exist in EQUILIBRIUM. ... More heat then will CONVERT the solid into a liquid with no temperature change. When all the solid has melted, additional heat will raise the temperature of the liquid.

B.Evaporation: the process by which an element or compound transitions from its liquid state to its gaseous state below the temperature at which it boils; in particular, the process by which liquid water enters the atmosphere as water vapour.

Ans 4The reason is that we get a lot of sweat on our body in a hot summer day. Cotton being a good absorber of water, absorbs sweat from the body and provides larger surface area for evaporation which causes more cooling effect.

Ans 5 THREE states of matter:Matter can exist in one of three main states: solid, liquid, or gas.

Solid matter is composed of tightly PACKED particles.

Liquid matter is made of more loosely packed particles.

Gaseous matter is composed of particles packed so loosely that it has neither a defined shape nor a defined volume.

please mark brainlist