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Month: July 2023
Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride. Also, determine the Metal Compound A.

Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride. Also, determine the Metal Compound A.

Based on the information provided, the metal compound A reacts with dilute hydrochloric acid to produce effervescence, and the gas evolved extinguishes a burning candle. Additionally, one of the compounds formed in the reaction is calcium chloride. Let's write the...

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Olfactory Indicators

Olfactory Indicators

Olfactory indicators, also known as smell indicators or odor indicators, are substances that change their smell in the presence of certain chemicals or conditions. They are commonly used in chemistry experiments to detect the presence or absence of specific gases or to determine the pH level of a solution. Olfactory indicators provide a visual and olfactory cue, making it easier for scientists to identify and analyze substances.

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λ (lambda) in Poisson distribution

λ (lambda) in Poisson distribution

In probability theory and statistics, λ (lambda) is a parameter used to represent the average rate or average number of events occurring in a fixed interval in the context of a Poisson distribution.

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What is Biology?

What is Biology?

The realm of biology encompasses a diverse array of specialized domains, including molecular biology, genetics, microbiology, botany, zoology, ecology, and more.

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Why should curd and sour substances not be kept in brass and copper vessels?

From Kaṇāda to Rutherford: Tracing the Evolution of Atomic Theory

The evolution of atomic theory is a long and winding road that has been travelled by some of the greatest minds in history. It began with the ancient Indians in 600 BC who gave the concept of “Parmanu” to Greeks who first proposed that matter was made up of tiny, indivisible particles. The 19th and 20th centuries saw significant advances in our understanding of atoms.

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Derive the Second Moment of the Poisson Distribution

Mastering Probability Theory: A Comprehensive Guide to Random Variable

Probability theory is a fascinating subject that has many applications in the real world. Understanding the basics of random variables and probability distributions is essential for anyone working in a field that deals with uncertainty. By mastering probability theory, you can make better decisions and improve your ability to analyze and interpret data.

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Random Event

Random Event

A random event refers to an unpredictable occurrence that has no discernible pattern or predetermined outcome. It is an event whose outcome cannot be reliably predicted or determined based on prior information or knowledge. Random events are commonly encountered in...

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Random variables

Random variables

Random variables are an important concept in probability theory and statistics. A random variable is a variable whose value is determined by the outcome of a random event. In other words, its value is not known beforehand but depends on the outcome of some underlying...

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10 Examples of combination reactions

10 Examples of combination reactions

1. The reaction between hydrogen gas and oxygen gas to form water: 2H2 + O2 → 2H2O 2. The reaction between iron and sulfur to form iron sulfide: Fe + S → FeS 3. The reaction between magnesium and oxygen to form magnesium oxide: 2Mg + O2 → 2MgO 4. The reaction between...

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The Top 10 Greatest Scientists of all times

The Top 10 Greatest Scientists of all times

The field of science has been enriched by numerous brilliant minds throughout history. Here are some of the greatest scientists who have made significant contributions to their respective fields: Isaac Newton (1643-1727) Considered one of the most influential...

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Periodic table

Periodic table

A periodic table is a tabular arrangement of chemical elements organized by their atomic number, electron configuration, and recurring chemical properties. The periodic table is one of the most important tools in chemistry, and it is used by scientists and engineers...

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