Science Quiz / 20 Questions - Chemistry

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Can you answer the 20 questions about chemistry?

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Score 0/20 Timer 06:00
1. These molecules are the basic building blocks of proteins
2. When the 3D structure of a protein breaks down due to heat, pH, or other factors
3. A measurement of the energy content of a system
4. A measurement of the randomness of a system
5. When a reaction or process gives off heat
6. The time required for half of the atoms in a redioactive sample to decay
7. Variations of an element that contain different numbers of neutrons
8. A model that shows the valence electrons of an atom using dots
9. 6.02 x 10^23
10. the flow of a liquid from an area of high concentration to an area of low concentration
11. A molecule containing many repeating units. An example is plastic
12. When the maximum amount of solute is dissolved in a liquid
13. An acid that will fully dissociate in water
14. when a soild changes directly into a gas
15. The outermost electrons in an atom
16. Anything that has mass and takes up space
17. A subatomic particle in all atomic nuclei with a positive electric charge
18. A process that involves rearrangement of the molecular or ionic structure of a substance
19. Any of the gaseous elements including neon, occupying Group (18) of the periodic table.
20. A colorless, odorless, highly flammable gas, the chemical element of atomic number 1.

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