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.
What are some common chemistry questions?
- Are two atoms of the same element identical?
- Can water stay liquid below zero degrees Celsius?
- Can you light diamond on fire?
- How bad of an alcoholic do you have to be to have your brain affected?
- How can glass be a liquid if it’s so hard?
- How do I know if something is an acid so I can avoid eating it?
What are some big unanswered questions in chemistry?
How did non-living chemical compounds generate self-replicating, complex life forms?
Protein design
: Is it possible to design highly active enzymes de novo for any desired reaction? Biosynthesis: Can desired molecules, natural products or otherwise, be produced in high yield through biosynthetic pathway manipulation?
What questions should I ask my chemistry teacher?
- What is matter in the universe made of?
- How is matter in the universe organized?
- What is the difference between chemistry terms like atoms, molecules, compounds, mixtures, etc.?
- How do mixtures work?
- What is a physical change?
What is the basic chemistry?
Chemistry is the
branch of science concerned with the substances of which matter is composed
, the investigation of their properties and reactions, and the use of such reactions to form new substances.
Who invented Chemistry?
If you are asked to identify the Father of Chemistry for a homework assignment, your best answer probably is
Antoine Lavoisier
. Lavoisier wrote the book Elements of Chemistry (1787).
Who invented the periodic table?
He arranged the elements in eight groups but left no gaps for undiscovered elements. In 1869,
Russian chemist Dmitri Mendeleev
created the framework that became the modern periodic table, leaving gaps for elements that were yet to be discovered.
What questions should I ask my chemist?
- Describe a situation when you reached a goal and tell us how you achieved it.
- Tell us about a time when you used logic to solve a problem.
- Describe a conflict you had with your colleague. …
- Tell us about the biggest mistake you’ve made in your work so far.
What are some unsolved questions?
- What is the universe made of? …
- How did life begin? …
- Are we alone in the universe? …
- What makes us human? …
- What is consciousness? …
- Why do we dream? …
- Why is there stuff? …
- Are there other universes?
What are the biggest mysteries in science?
- Dark Matter – The Spider’s Web. …
- Dark Energy – The Poltergeist. …
- Quantum Entanglement – Spooky Action. …
- Antimatter – The Evil Twins. …
- The Fermi Paradox – Little Green Men. …
- Black Holes – Massive Monsters. …
- Space Roar – Silent Scream. …
- Cosmic Rays – Ghostly Visitors.
How do I prepare for a chemistry interview?
- Research the company you’re interviewing with.
- Smile and use positive body language.
- Send a follow-up thank you note addressed to your interviewer(s).
What is called Valency?
Valency is
the combining power of an element
. Elements in the same group of the periodic table have the same valency. The valency of an element is related to how many electrons are in the outer shell. Group number.
How can I impress my chemistry teacher?
Impressing your teachers is an important part of being a good student. Stay active and engaged in class. Answer and ask questions when possible or appropriate, and follow your teacher’s directions carefully. Always do
your best in school
and your teachers will surely be impressed.
What is O called in chemistry?
“O” in chemistry stands for
an Oxygen atom
. O2 represents an oxygen molecule.
What created atoms?
Atoms were created
after the Big Bang 13.7 billion years ago
. As the hot, dense new universe cooled, conditions became suitable for quarks and electrons to form. Quarks came together to form protons and neutrons, and these particles combined into nuclei.
Who named chemistry?
The word chemistry is said to have roots in either ancient Egypt or Greece. Science historian Howard Markel discusses the word’s origin, and the modern naming of the field of chemistry by
British natural philosopher and alchemist Robert Boyle
in his 1661 treatise, The Skeptical Chymist.
Who is the God of chemistry?
Antoine Lavoisier
is god of chemistry.
What are the 10 most common interview questions and answers?
- Tell me about yourself.
- What is your greatest strength?
- What is your greatest weakness?
- Why should we hire you?
- What’s something positive your boss would say about you?
- What are your salary expectations?
- Why are you leaving your current role?
Who named the elements?
Many countries have adopted the element names that have been agreed upon by the International Union of Pure and Applied Chemistry (IUPAC). According to the IUPAC, “elements can be named
after a mythological concept
, a mineral, a place or country, a property, or a scientist”.
How was atomic number discovered?
The concept of atomic number evolved from
the historic research of Henry Gwyn-Jeffreys Moseley in the 1910s
. Moseley bombarded a number of chemical elements with x rays and observed the pattern formed by the reflected rays.
What is a chemistry interview?
A chemistry session can
take place at any part of the interview
process, it may form part of the pre-screen process or as a final stage as part of the decision-making process. These types of meetings can take place on site or over coffee in a relaxed environment to put the candidate at ease.
What is chemistry and what types of questions do chemists try to answer?
studies matter and tries to answer questions like “What makes up
this
material?,” “How does this material change when heated or cooled,?” What happens when I mix this material with another material,?” and “What rules determine how materials change in different situations?” What makes up Chemical X?
What problems Cannot solve science?
- Turbulence. Turbulence isn’t a new word. …
- A simulation snapshot showing turbulence in a jet.
- The Origin of Life. …
- Abiogenesis.
- Protein Folding. …
- DNA-binding domain.
- A Quantum Theory of Gravity. …
- Riemann Hypothesis.
What is the most mysterious question?
- What is matter made of? …
- Why is gravity so weird? …
- Why does time seem to flow only in one direction? …
- Where did all the antimatter go? …
- What happens in the gray zone between solid and liquid? …
- Can we find a unified theory of physics?
- How did life evolve from nonliving matter?
What is the biggest problem in physics?
The theory was developed by a group of French physicists at the University of Paris-Saclay, and it introduces a few new particles in an attempt to unify multiple different theories to solve five of the biggest problems in physics:
dark matter, cosmic inflation
, the strong CP problem, neutrino oscillations, and …
Is Dark Matter real?
Because
dark matter has not yet been observed directly
, if it exists, it must barely interact with ordinary baryonic matter and radiation, except through gravity. Most dark matter is thought to be non-baryonic in nature; it may be composed of some as-yet-undiscovered subatomic particles.
How do you get a teacher to hate you?
- Walk into the classroom like a super spy. …
- After everything your teacher says, ask why continuously.
- If your teacher is yelling at a classmate, wait for them to finish their tantrum then ask” DOES SOMEBODY NEED A HUG?????” very loudly.
How can you make a teacher fall in love with you?
- Go to class. OK, I know that this one is really obvious, but it’s the biggest and most important step. …
- Use proper titles. …
- Don’t use text-speak in emails. …
- Look to the syllabus for logistical questions. …
- At least act like you’re paying attention. …
- Speak up in class. …
- Engage. …
- Go to office hours.
What does U mean in chemistry?
The
unified atomic mass unit
(unit symbol: u) is a non-SI unit of mass, defined as one-twelfth the mass of a single
12
C atom in its ground state.
What is inside a black hole?
At the center of a black hole, it is often postulated there is something called
a gravitational singularity
, or singularity. This is where gravity and density are infinite and space-time extends into infinity. Just what the physics is like at this point in the black hole no-one can say for sure.
Is time Travelling possible?
In Summary: Yes,
time travel is indeed a real thing
. But it’s not quite what you’ve probably seen in the movies. Under certain conditions, it is possible to experience time passing at a different rate than 1 second per second.
Who is the father of chemistry and why?
Antoine Laurent Lavoisier
is consider as the Father of Chemistry. He was a meticulous experimenter, he revolutionized chemistry.
Why do we need to hire you?
YOU can do
the work and deliver exceptional results to the company
. YOU will fit in beautifully and be a great addition to the team. YOU possess a combination of skills and experience that make you stand out. Hiring YOU will make him look smart and make his life easier.
Is there a chemistry app?
Chemistry & Periodic Table
. The Chemistry application allows you to discover chemical reactions and to solve the chemical equations with one or multiple unknown variables. The app can find the equations of chemical reactions even if the right or left part is unknown, it helps you with organic and inorganic chemistry.
What do chemists do?
Chemists
investigate the properties of matter at the level of atoms and molecules
. They measure proportions and reaction rates in order to understand unfamiliar substances and how they behave, or to create new compounds for use in a variety of practical applications.
What is molecular formula?
Definition of molecular formula
:
a chemical formula that gives the total number of atoms of each element in each molecule of a substance
— compare structural formula.
What is the atomic number?
atomic number,
the number of a chemical element in the periodic system
, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number.
How many electrons are in each shell?
| Energy shell Maximum number of electrons | First 2 | Second 8 | Third 8 |
|---|
