Chemistry. the science that deals with the composition and properties of substances and various elementary forms of matter. a branch of knowledge or study dealing with a body of facts or truths systematically arranged and showing the operation of general laws: Mass.
What is a good definition of chemistry quizlet?
A good definition of chemistry is: the science that seeks to understand the interactions of molecules for the sake of advancing human control over nature.
What is the main definition of chemistry?
chemistry, the science that deals with the properties, composition, and structure of substances (defined as elements and compounds), the transformations they undergo, and the energy that is released or absorbed during these processes.
What is the definition of chemistry quizlet?
Chemistry. the branch of science that deals with the study of the composition, structure, and properties of matter and the changes which matter undergoes. physical chemistry.
What is chemistry definition with example?
The definition of chemistry is a branch of science that deals with the form and properties of matter and substances or the interaction between individuals. An example of chemistry is the study of protons and neutrons. An example of chemistry is the feeling of affection and attraction between a couple.
What is the definition of a scientific theory quizlet chemistry?
what is the definition of a scientific theory? a model that explains underlying reasons for observations and laws. explain the difference between a theory and a law.
What is chemistry in short form?
chem. [chemical(ly), chemistry] agrochem.
What is the meaning of chemistry of life?
(bī′ō-kĕm′ĭ-strē) The scientific study of the chemical composition of living matter and of the chemical processes that go on in living organisms.
Why is chemistry so important?
Chemistry will help us solve many future problems, including sustainable energy and food production, managing our environment, providing safe drinking water and promoting human and environmental health.
What is the definition of matter quizlet?
matter. anything that has mass and takes up space. physical property. a characteristic of an object that can be observed or measured without changing the object.
What is an observation chemistry?
Definition. observation. anything detected with the senses, which include sight, hearing, touch, smell, and taste.
What is a hypothesis in chemistry?
A scientific hypothesis is a tentative, testable explanation for a phenomenon in the natural world. It’s the initial building block in the scientific method. Many describe it as an “educated guess” based on prior knowledge and observation. While this is true, a hypothesis is more informed than a guess.
What is the introduction of chemistry?
Chemistry primarily focuses on atoms, ions, and molecules which, in turn, make up elements and compounds. These chemical species tend to interact with each other through chemical bonds. It is important to note that the interactions between matter and energy are also studied in the field of chemistry.
Why is chemistry called the science of life?
The study of the structure and function of these biomolecules, as well as their role in biological processes at the molecular, cellular, and organismal levels, is known as the Chemistry of Life.” Cells are made up of organic and inorganic molecules, which are made up of atoms that have been bonded together.
Who discovered chemistry?
Antoine-Laurent de Lavoisier (1743–94) is considered the “Father of Modern Chemistry”.
What is the key to success in chemistry?
In addition to understanding the concepts, your ability to solve problems will be a key to your success in chemistry. You will spend a lot of time working problems in class and at home. Review the sample problems in the chapter and your notes. Do not try to memorize the sample problems.
What do you measure in chemistry?
Chemists measure the properties of matter and express these measurements as quantities. A quantity is an amount of something and consists of a number and a unit. The number tells us how many (or how much), and the unit tells us what the scale of measurement is.
Which statement defines a good scientific theory?
A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not “guesses” but reliable accounts of the real world.
Which branch of chemistry is concerned with the chemical processes that occur within living organisms?
Biochemistry is where science is applied to the study of living organisms and the chemical processes within them. It is a laboratory-based science that brings together biology and chemistry.
What are the subdivision of chemistry?
Traditionally, chemistry has been broken into five main subdisciplines: Organic, Analytical, Physical, Inorganic and Biochemistry.
What happens to the atoms within molecules undergoing a chemical reaction quizlet?
During a chemical reaction the number and type of atoms are going to stay the same, they just rearrange themselves forming new substances with different properties.
What is a form chemistry?
Any chemical element X can be represented asz X A where ‘ Z ‘ is the atomic number and ‘ A ‘ is the mass number. The Atomic number refers to the number of protons and the mass number refers to the sum of protons and neutrons in an atom.
What is the most important chemistry of life?
Carbon (18%) is synonymous with life. Its central role is due to the fact that it has four bonding sites that allow for the building of long, complex chains of molecules. Moreover, carbon bonds can be formed and broken with a modest amount of energy, allowing for the dynamic organic chemistry that goes on in our cells.
What does chemistry mean in relationship?
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.
What is the love chemistry?
High levels of dopamine and a related hormone, norepinephrine, are released during attraction. These chemicals make us giddy, energetic, and euphoric, even leading to decreased appetite and insomnia – which means you actually can be so “in love” that you can’t eat and can’t sleep.