Chemistry Hero
What is Avogadro's number?
6.022 x 10^23
An atom that has acquired a positive or negative charge
Ion
What is chemical substance that capable of donating a hydrogen ion?
Acid
What subatomic particle did Rutherford discovered?
Proton
Saccharide is another word for....
Sugar
Who is the scientist that found the periodic table?
Dmitri Mendeleev
Elements that are alike in their number of protons and electrons, but differ in their atomic weight because of their differing numbers of neutrons in the nucleus.
Isotope
This type of energy is lowered when an enzyme is present and it is used to begin a reaction.
Activation energy
Thanks to him, to day we know how the atom react each other because we know there is electron as the subatomic particle. Who is he?
J.J. Thomson
What does MSDS stand for?
Material Safety Data Sheet
Who is the first woman that win the noble prize?
Marie Curie
A mixture formed when one substance dissolves in another.
Solution
What is the acid that makes your eyes teary when you cut the onion?
Sulfuric acid
Who is called as modern chemistry father? He discovered the conservation of mass in chemical reaction.
Antoine Lavoisier (1743–1794)
State two reasons using plastics is harmful.
What are killing marine animals, filling landfills, toxic when burned, hard to dispose off, do not biodegrade
What was Marie Curies man research about?
Radioactivity
Chemical compounds that characterize living things and built mainly out of the element carbon.
Organic compound
What is the particle that is used in sunscreen to reflect the sunlight?
Zinc oxide or Titanium oxide
Who proposed the basic atomic theory?
John Dalton (1766–1844)
One of the essential minerals in the human body is salt. How much salt (NaCl) is in the average adult human body?
1000 gram/500 gram/250 gram/practically none
250 gram
Nitrogen play an important role for crop fertilizers. Who invented the technology that enables to produce ammonia faster?
Fritz Haber and Carl Bosch (Haber-Bosch Process)
Which particles have approximately the same size and mass as each other?
Proton and Neutron
Why mineral water has expired date?
It can absorb chemical from the bottle water moreover if it is exposed by sunlight.
Joseph Priestley was the scientist who discovered the important gas for living organism. What is the gas?
Oxygen
The three main chemicals that when released make rain more acidic.
Sulfur dioxide, Carbon dioxide, Nitrogen dioxide