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• Sulphate (SO4) : -2
• NITRATE (NO3) : -2
• Carbonate (CO3) : -2

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Explanation:

Science (from the Latin word scientia, meaning "knowledge")[1] is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.[2][3][4]

The Universe represented as multiple disk-shaped slices across time, which passes from left to right

The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3500 to 3000 BCE.[5][6] Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to PROVIDE explanations of events in the physical world based on natural causes.[5][6] After the fall of the Western Roman Empire, knowledge of Greek conceptions of the world deteriorated in Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages[7] but was preserved in the MUSLIM world during the Islamic Golden Age.[8] The recovery and assimilation of Greek works and Islamic inquiries into Western Europe from the 10th to 13th century revived "natural philosophy",[7][9] which was later transformed by the SCIENTIFIC Revolution that began in the 16th century[10] as new ideas and discoveries departed from previous Greek conceptions and traditions.[11][12][13][14] The scientific method soon played a greater role in knowledge CREATION and it was not until the 19th century that MANY of the institutional and professional features of science began to take shape;[15][16][17] along with the changing of "natural philosophy" to "natural science."[18]

Modern science is typically divided into three major branches that consist of the natural sciences (e.g., biology, chemistry, and physics), which study nature in the broadest sense; the social sciences (e.g., economics, psychology, and sociology), which study individuals and societies; and the formal sciences (e.g., logic, mathematics, and theoretical computer science), which study abstract concepts. There is disagreement,[19][20][21] however, on whether the formal sciences actually constitute a science as they do not rely on empirical evidence.[22][20] Disciplines that use existing scientific knowledge for practical purposes, such as engineering and medicine, are described as applied sciences.[23][24][25][26]

Science is based on research, which is commonly conducted in academic and research institutions as well as in government agencies and companies. The practical impactccvcws of scientific research has led to the emergence of science policies that seek teffo influence the scientific enterprise by prioritizing the development of commercial products, armaments, health care, and environmental protection.fffffff

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Atoms consist of a nucleus made of protons and neutrons ORBITED by electrons. ... We now know that atoms are made up of three particles: protons, neutrons and electrons — which are composed of even smaller particles, such as QUARKS. Atoms were created after the BIG Bang 13.7 BILLION years ago

Answer:

J clin invest the YEAR and I have SEND you the year and I have send you

ANSWER:

Flipkart is the leader in Indian commerce with the highest market SHARE. Flipkart is one of the websites in India which sells products at affordable rates. Flipkart OFFERS a HUGE range of products. It is ALSO said that Flipkart has more products than a mall.

Explanation:

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ANSWER:

SOLIDS, LIQUIDS and GASES

Explanation:

Citric acid does not corrode other EQUIPMENT and structures, either, like NITRIC acid. There is no hazardous waste removal, or the costs and regulatory OVERSIGHT ASSOCIATED with it, and citric acids is stored as a non-hazardous MATERIAL......

ANSWER:

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ANSWER:

COPPER sulphate

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ANSWER:

TUNGSTEN is the ANS I THINK ...

Answer:

1) Maharashtra - Our state

2) MUMBAI - CAPITAL city

3) East - Sunrise

4) WEST - Sunset

5) Temple - manmade

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ANSWER:

CARBON dioxide

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Answer:

The theme for 2020 is "WATER and Climate Change" and explores how the two issues are inextricably linked. Due to the COVID-19 pandemic, the 2020 CAMPAIGN also promoted messages of hand washing and hygiene and gave guidance on STAYING safe while supporting the campaign. The 2019 theme was "Leaving no ONE behind".

Answer:

pH of Acids and Bases

pH of Acids and BasespH of Acids and BasesAnother way to check if a substance is acidic or basic is to use litmus paper. There are two types of litmus paper available that can be used to identify acids and bases – red litmus paper and BLUE litmus paper.

Substances that have a level of more than 7 are basic in nature. For e.g. Basic substances such as baking soda, limewater, ammonia, etc. Whereas substances which have a pH value of 7 are neither basic nor acidic which means they're neutral in nature. For e.g. Pure water.Swedish chemist Arrhenius defined an acid as a substance that ionizes in water to give HYDROGEN ions, and a base as a substance that ionizes in water to give hydroxide ions. ... ACIDIC solutions are formed when an acid transfers a proton to water.The pH Scale

If the pH of a solution is less than 7, it is acidic. If the pH is 7, the solution is neutral and if the pH is greater than 7,the solution is basic. This scale indicates the amount of actual H+ ions (acidity) floating around in the solution, which is directly RELATED to the definition of an acid.To determine whether a substance is an acid or a base, count the hydrogens on each substance before and after the reaction. If the number of hydrogens has decreased that substance is the acid (donates hydrogen ions). If the number of hydrogens has INCREASED that substance is the base (accepts hydrogen ions).Name a substance that is used to identify whether a given substance is acid or bases.

tungsten

In terms of tensile strength, tungsten is the strongest out of any natural METAL (142,000 psi). But in terms of IMPACT strength, tungsten is weak — it's a BRITTLE metal that's known to shatter on impact.

EXPLANATION:

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ANSWER:

SKELETON..............

ANSWER:

this is very good i LIKE it

Explanation:

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Answer:

The five conditions of CHEMICAL change: color CHAGE, formation of a PRECIPITATE, formation of a GAS, odor change, temperature change.

Answer:

Liquid metal is a metal or a metal alloy which is liquid at or NEAR room TEMPERATURE. A few elemental metals are liquid at or near room temperature. The most well known is MERCURY (HG), which is molten above −38.8 °C (234.3 K, −37.9 °F).

ANSWER:

cjvkvkvkvk GG and SMART WAYS of LEARNING and smart ways

Explanation:

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Answer:

Lead (Pb8

Explanation:

It is a metal which is good conductor of HEAT and ELECTRICITY and LIQUID at room temperature. ALSO it is SILVERY in colour

Answer:

please tell WEATHER the "10" is in minutes or seconds

and what is the MEANING of "next charge" ?

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False

False

True

True....

ANSWER:

MATTER can be CHANGED to another state is called phase change.

Explanation:

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A food calorie is actually a “KILOCALORIE.” In other words it is the amount of energy needed to raise the TEMPERATURE of ONE liter of water by one degree. Originally, the calorie CONTENT of a food was MEASURED in a calorimeter

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ANSWER:

what do you MEAN by the QUESTION ?

ANSWER:

GO d

Explanation:

SORRY it BLUR ........

ANSWER:

product are those substances which is form as a result of chemical reaction

reactant are those substances which take PART in a chemical reaction

1) coper carbonate is product and coper oxide aur JO likha hai vo dikh nhi rha bhai jo bhi hai vo reactant hoga

2) here phosphorus and oxygen is reactant and phosphorus pentagaox is product

3) here mercuric oxide is product and mercury and oxygen is reactant

4) ALUMINIUM and nitrogen is reactant and aluminium nitride is product

5) sodium water reactant and sodium hydroxide is product

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Answer:

1) an atom COMBINES with other MOLECULES as to FORM different compounds

2) an ion is a charged particle as it is carrying a positive or a negative charge

3) the periodic table is based on the ATOMIC number so as to give clear information on the different elements of the periodic table.

Enthalpy of NEUTRALISATION.

Answer:

have just joined a NEW school in a big city where your father has been posted

It was DIFFICULT for you to leave your FRIENDS and shift to a strange place. You are

apprehensive about the new classmates and teachers. MAKE a diary ENTRY on your

second day at school.

Answer:

OPPOSITE

EXPLANATION:

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• ANSWER :-

A SOLUTION is a homogeneous MIXTURE of two or more components.

• Solution = solvent + solute
• EX → SALT solution
• Salt → solute
• water → solvent

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Answer:

When you heat a gas, both its vapor PRESSURE and the volume it occupies increase. The individual gas PARTICLES become more energetic and the temperature of the gas increases. At HIGH TEMPERATURES, the gas turns into a PLASMA.

ANSWER:

d.

Explanation:

ATOMS cannot be divided

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Explanation:

Because ant's sting contains acid which is neutralize soon when we rub BAKING SODA which is BASIC in nature

ANSWER:

Because soap solution is basic. Take china rose PETALS in beaker and ADD water. This coloured water is indicator. China rose indicator TURNS acidic solutions DARK pink and basic solutions green.

Answer:

Salt, in chemistry, SUBSTANCE produced by the reaction of an acid with a base.

Salt has long been used for flavoring and for preserving food. It has also been used in tanning, dyeing and bleaching, and the PRODUCTION of pottery, soap, and chlorine. Today, it is widely used in the chemical industry.

Some salts used in labs are÷

Sodium Chloride. Table salt, or sodium chloride, is the ionic product of the combination of lye, or sodium hydroxide, and hydrochloric acid. ...

Ammonium Dichlorate. ...

Magnesium SULFATE. ...

Sodium BICARBONATE.

Answer:

FACTORY wastes contain acids which if untreated and discharged into WATER bodies will cause harm to fish and other aquatic ORGANISMS living in water bodies. Therefore, they should first be treated with basic substances to NEUTRALISE them and then discharged into water bodies.

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Answer:

the lady BIRD beetle and the DRAGONFLY are BIOCONTROL AGENTS..

Neutralisation is the REACTION of an acid with a BASE that results in the pH moving towards seven. It is a useful PROCESS that occurs in everyday life such as in the treatment of acid indigestion and the treating of acidic soil by adding lime. When an acid is NEUTRALISED, its pH increases towards seven.

Explanation:

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Answer:

21

Explanation:

it will be same

ANSWER:

FALSE

EXPLANATION:

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ANSWER:

OSMOSIS is a PROCESS of movement particles from higher concentration to LOWER concentration through SEMI permeable membrane