(ex. Biology B) Jeopardy Review

Unit 1

100

could you tell me if matter has a color

Matter has no color. Not in the conventional sense. You see in physics the word color has a different meaning. In physics, the word color, refers to the property of an object which causes it to absorb or reflect certain wavelengths of light.

200

could you explain why everything is made up of matter

Matter is everything around you. Atoms and compounds are all made of very small parts of matter. Those atoms go on to build the things you see and touch every day. Matter is defined as anything that has mass and takes up space (it has volume).

300

could you explain why everything is made up in matter but energy is not

You can define any mass by a distance known as its Schwarzschild radius, which is the radius of a black hole of that mass. So in a way, energy, matter, space and time are all aspects of the same thin.

Unit 2

100

could you explain the difference between matter and atoms

Matter is defined as anything that has mass and volume. Atoms are the smallest unit of matter. This means that atoms are the building blocks of all other substances on Earth- both organic and inorganic. ... The mass of the electrons are considered insignificant compared to that of protons and neutrons.

200

could you tell me if there are nuclear reactions going on in our bodies

Nuclear reactions do indeed occur in the human body, but the body does not use them. Nuclear reactions can lead to chemical damage, which the body may notice and try to fix

300

could you tell me Do other atoms ever actually touch each

If two atoms are non-reactive and don't form covalent, ionic, or hydrogen bonds, then their electromagnetic interaction typically takes the form of the Van der Walls force. ... If "touching" is taken to mean that two atoms influence each other significantly, then atoms do indeed touch, but only when they get close enough.

400

could you tell me Does an electron in an atom move at all?

Electrons in higher-energy atomic states vibrate more quickly. Because an electron is a quantum object with wave-like properties, it must always be vibrating at some frequency. ... Furthermore, an electron in a stable atomic state does not move in the sense of waving through space

Unit 3

100

could you explain is the Periodic Table going to stay the same for the rest of humanity 

no

200

could you explain why was the Periodic Table made

Mendeleev realized that the physical and chemical properties of elements were related to their atomic mass in a 'periodic' way, and arranged them so that groups of elements with similar properties fell into vertical columns in his table.

300

could you explain why How does the periodic table affect bonding

Periodic trends affect bonding, because of how the elements are arranged on the periodic table. ... Electronegative is the atoms ability to attract other bonded atoms. Electron affinity is an atoms ability to attract another atom.

Unit 4

100

could you explain What are the similarities between chemical and nuclear reactions

Nuclear reactions involve a change in an atom's nucleus, usually producing a different element. Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei. Different isotopes of an element normally behave similarly in chemical reactions.

200

could you explain what happened a short instant after the big bang when nuclear matter is severely compressed

Around the time of inflation, the strong force likely separated out. And by about 10 trillionths of a second after the Big Bang, the electromagnetic and weak forces became distinct, too. Just after inflation, the universe was likely filled with a hot, dense plasma.

300

could you explain What is nuclear reaction in chemistry

In nuclear physics, a nuclear reaction is a process in which two nuclei or nuclear particles collide, to produce different products than the initial particles. In principle a reaction can involve more than two particles colliding, but such an event is exceptionally rare.

Unit 5

100

could you explain What do buffers do to acids and bases

A buffer is a solution that can resist pH change upon the addition of an acidic or basic components. It is able to neutralize small amounts of added acid or base, thus maintaining the pH of the solution relatively stable.

200

could you explain How are acids and bases used in everyday life give 10 examples

The most common application is the Sulphuric acid found in the car batteries. It is also used in making fertilizers, cleaning products, and manufacturing of polymers. Iron and steel industries use sulfuric acid to remove oxide coatings. It is also used in some solution to unclog the drain.

300

could you explain What are the differences between acids and bases

A substance, mostly liquid that donates a proton or accepts an electron pair in reactions. An acid increases the concentration of H+ ions. A base is a substance that releases hydroxide (OH-) ions in aqueous solution, donates electrons and accepts protons.