Chemistry Question And Answers (2023)

FAQs

What are some good chemistry questions? ›

Chemistry is the branch of science that deals with the properties, composition, and structure of elements and compounds, how they can change, and the energy that is released or absorbed when they change.

Answer: which has more calories : table sugar or aspartame ? what does synthetic gas (water gas) consist of ?

Science is the systematic effort by human beings to control nature through experiments and observation for their own use. or. Science is the systematic ongoing effort by human beings to study understand and utilise nature for meaningful purposes.

Listen to pronunciation. (A-sid) A chemical that gives off hydrogen ions in water and forms salts by combining with certain metals. Acids have a sour taste and turn certain dyes red.

The most important question in chemistry is "Where are the electrons?" electronegative atoms (e.g. F, Cl, O, N) of a molecule. The electronegative atoms pull electron density away from the less electronegative atoms (e.g. C, H) to which they are bonded.

How many elements are there? ›

At present, 118 elements are known to us. All these have different properties. Out of these 118, only 94 are naturally occurring. As different elements were being discovered, scientists gathered more and more information about the properties of these elements.

In a more formal sense, chemistry is traditionally divided into five major subdisciplines: organic chemistry, biochemistry, inorganic chemistry, analytical chemistry, and physical chemistry.

Simply put, the feeling of chemistry with another person is that of connection. It's a draw to someone else that makes you want more of them. That doesn't have to be in a romantic relationship context, though that is the way we most often use the word.

Physics is considered comparatively harder than chemistry and various other disciplines such as psychology, geology, biology, astronomy, computer science, and biochemistry. It is deemed difficult compared to other fields because the variety of abstract concepts and the level of maths in physics is incomparable.

The word chemistry derives from the word alchemy, which is found in various forms in European languages. Alchemy derives from the Arabic word kimiya (كيمياء) or al-kīmiyāʾ (الكيمياء).

Chemistry is considered very hard. In fact, Chemistry is considered one of the most difficult subjects in College. Some of the more advanced chemistry courses (like Physical Chemistry) have been determined to be the hardest classes in College.

physical chemistry is one of the toughest as it is a combination of physics and chemistry and it has lot of confusing concepts. inorganic is moderately tough but as not as physical chemistry. organic chemistry is easy as it contains basic concepts.

As far ''Easiest topics" in chemistry is concerned, Polymers & Biomolecules, S&P block elements, Hydrocarbons, Physical Chemistry chapters are very scoring topics.

So is Biology harder than Chemistry? Chemistry is more difficult than Biology because it requires critical thinking to solve complex problems. Chemistry is also more difficult than Biology because it requires more math and calculations to explain solutions to problems.

How can I pass my exam in one night? ›

Albert Einstein called Galileo the “father of modern science.” Galileo Galilei was born on February 15, 1564, in Pisa, Italy but lived in Florence, Italy for most of his childhood. His father was Vincenzo Galilei, an accomplished Florentine mathematician, and musician.

Systematic, comprehensive, investigation and exploration of natural, causes and effect is the full form of Science.

How to Remember Long Answers Quickly | Memorize New Things

In spoken English and informal writing, a short answer is a response made up of a subject and an auxiliary verb or modal. Short answers are brief but complete—they can answer "yes or no" questions or more complicated queries.

pH may look like it belongs on the periodic table of elements, but it's actually a unit of measurement. The abbreviation pH stands for potential hydrogen, and it tells us how much hydrogen is in liquids—and how active the hydrogen ion is.

Detailed Description. pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.

What are the 3 types of acids? ›

Usually acids can be divided into three major types. First one is binary acid, second one is oxyacid, and the last one is carboxylic acid. Binary acids are all written in “H-A” form, which means hydrogen bond to a nonmetal atom.

The Class 12 Chemistry paper is quite dreaded as the syllabus is long and many have problems with Organic Chemistry and the numericals.

It is one of the easiest but highly scoring chapters of Class 11 Chemistry. In order to prepare Inorganic Chemistry you just need a very sharp memory because it involves lots of learning.

In chemistry, a pure element means a substance whose atoms all (or in practice almost all) have the same atomic number, or number of protons. Nuclear scientists, however, define a pure element as one that consists of only one stable isotope.

The permanent names for elements 113, 115, 117, and 118 are nihonium, moscovium, tennessine, and oganesson.

Fire is one of the four classical elements along with Earth, Water and Air in ancient Greek philosophy and science. Fire is considered to be both hot and dry and, according to Plato, is associated with the tetrahedron.

The substances mentioned above exemplify the two basic types of chemical compounds: molecular (covalent) and ionic.

How To Pronounce Chemistry - Pronunciation Academy - YouTube

Traditionally, chemistry has been broken into five main subdisciplines: Organic, Analytical, Physical, Inorganic and Biochemistry.

The term matter refers to anything that occupies space and has mass—in other words, the “stuff” that the universe is made of. All matter is made up of substances called elements, which have specific chemical and physical properties and cannot be broken down into other substances through ordinary chemical reactions.

Is kissing chemistry important? ›

Kissing causes a chemical reaction in your brain, including a burst of the hormone oxytocin. It's often referred to as the “love hormone,” because it stirs up feelings of affection and attachment. According to a 2013 study, oxytocin is particularly important in helping men bond with a partner and stay monogamous.

But wait, it turns out that love does have a chemical formula! C8H11NO2 + C10H12N2O + C43H66N12O12S2 or in other words Dopamine + Serotonin + Oxytocin = LOVE.

According to Hani Henry, chair and associate professor of psychology in the Department of Sociology, Anthropology, Psychology and Egyptology at AUC, Robert Sternberg's psychological theory covers the most common reasons why we fall in love, namely: intimacy, passion and commitment.

The most important question in chemistry is "Where are the electrons?" electronegative atoms (e.g. F, Cl, O, N) of a molecule. The electronegative atoms pull electron density away from the less electronegative atoms (e.g. C, H) to which they are bonded.

Can the transition temperature of high-temperature superconductors be brought up to room temperature? What happens to the electron cloud at very high atomic numbers, when the innermost electrons would, using a non-relativistic model, be calculated to exceed the speed of light?

The main topics in chemistry include acids and bases, atomic structure, the periodic table, chemical bonds, and chemical reactions.

Usually acids can be divided into three major types. First one is binary acid, second one is oxyacid, and the last one is carboxylic acid. Binary acids are all written in “H-A” form, which means hydrogen bond to a nonmetal atom.

In a more formal sense, chemistry is traditionally divided into five major subdisciplines: organic chemistry, biochemistry, inorganic chemistry, analytical chemistry, and physical chemistry.

Listen to pronunciation. (A-sid) A chemical that gives off hydrogen ions in water and forms salts by combining with certain metals. Acids have a sour taste and turn certain dyes red.

As a discipline, chemistry is inherently mysterious, as it deals with the chemical and physical aspect of how substances – particularly their atoms – interact with each other, which is a tall task to complete for all the known substances.

What is matter made of? ›

Matter on Earth is in the form of solid, liquid, or gas. Solids, liquids, and gases are made of tiny particles called atoms and molecules.

Acid:- An acid is defined as a substance whose water solution tastes sour, turns blue litmus red, and neutralizes bases. Base:- A substance is called base if its aqueous solution tastes bitter, turns red litmus blue, or neutralizes acids. Salt:- Salt is a neutral substance whose aqueous solution does not affect litmus.

Chemistry is considered very hard. In fact, Chemistry is considered one of the most difficult subjects in College. Some of the more advanced chemistry courses (like Physical Chemistry) have been determined to be the hardest classes in College.

At present, 118 elements are known to us. All these have different properties. Out of these 118, only 94 are naturally occurring. As different elements were being discovered, scientists gathered more and more information about the properties of these elements.