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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Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?
When an acid reacts with a metal, hydrogen gas (H2) is usually liberated. The reaction between an acid and a metal is a type of single-displacement or single-replacement reaction, where the more reactive metal displaces hydrogen from the acid, forming a metal salt and...
Why should curd and sour substances not be kept in brass and copper vessels?
Curd and sour substances should not be kept in brass and copper vessels because these metals can react with acidic foods, leading to potential health hazards. The main concern is the leaching of toxic metals into the food or liquid being stored, which can contaminate...
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.
Understanding Chemical Reactions and Equations
Get ready to embark on a journey through the fascinating realm of chemical reactions and equations, where every reaction is a symphony of atoms dancing to the tunes of nature.
Multiplication Rule in Probability
The multiplication rule in probability is used to find the probability of the intersection of two or more independent event
Addition Rule in Probability
Derive the Mean or Expected Value of Random Variable that has Poisson Distribution
Finding the Expected Value μ (mean) of Random Variable that has 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.
Derive the Second Moment of the Poisson Distribution
Derive the formula of Variance of the Poisson Distribution
What is Biology?
The realm of biology encompasses a diverse array of specialized domains, including molecular biology, genetics, microbiology, botany, zoology, ecology, and more.
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.
Suppose the diameter of aerosol particles in a particular application is uniformly distributed between 2 and 6 nanometers. Find the probability that a randomly measured particle has diameter greater than 3 nanometers.
uniformly distributed aerosol particles between 2 and 6 nanometers
Chandrayaan-3: India’s Lunar Exploration Mission to Discover the Moon’s Composition
In 2008, India embarked on its first lunar exploration mission, Chandrayaan-1, marking a significant milestone in its space endeavors. Following the success of Chandrayaan-1 and the failure of Chandrayaan-2, India announced its plans for Chandrayaan-3, the country's...
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.
Random Phenomena
Information about Random Phenomena
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...
Practical Examples of Continuous Random Variables
Practical illustrations of Random Variables that we are exposed to in our daily life
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...
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...
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...
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...