Chemistry
What is the symbol in the periodic table for Sodium?
Na (Natrium)
What is the force that pulls objects towards the center of the Earth?
Bonus: whats the acceleration (on earth)?
Gravity
Bonus: 9.81m/s2
Which DNA bases pair together?
AT and GC
What is the sum of interior angles of a triangle?
180 degrees
What is an example of a renewable energy source?
Solar, Wind, Biomass, Hydro, etc.
What type of reactions release heat?
Exothermic Reactions
What type of energy is stored in a stretched rubber band?
Potential Energy
Eukaryotic cells have certain structures that prokaryotic cells lack. Can you name at least two of them?
Mitochondria, nucleus, endoplasmic reticulum, chloroplasts, lysosomes, peroxisomes, and golgi apparatus
sin2 (x)+cos2 (x) = ?
1
What country emits the most greenhouse gasses?
China
What is the definition of a Brønsted–Lowry acid
Any species that can donate a proton (H+ also acceptable)
Which color of visible light has the highest energy?
Violet
List three hormones that the human body produces
Adrenaline, Melatonin, Insulin, Growth hormone, Oxytocin, Estrogen, Progesterone, Testosterone, Cortisol, Thyroid Hormones, etc.
What three numbers have the same value multiplied as they do added together?
1 + 2 + 3 = 6
1 x 2 x 3 = 6
What is the most commonly littered item in the world?
Cigarette buds
Is the following reaction a redox reaction: CH4+ O2 ->CO2 + H20
Yes because it's a combustion reaction, combustion reactions are redox reactions. Change of oxidation states occurs, C goes from -4 to +4 for example.
According to Newton’s Second Law of Motion, if you double the force on an object while keeping its mass the same, what happens to its acceleration?
Acceleration also doubles
What is the definition for: Phenotype and Enzyme?
Phenotype: The physical traits of an organism, determined by its genes and environment.
Enzyme: A protein that speeds up chemical reactions in the body without being consumed.
Solve for X:
1 + 1 = 121
1 + 2 = 134
2 + 2 = 444
2 + 3 = 459
3 + 3 = X
X = 969
How much % of a phone can be recycled? (in answers of 10%)
80%
Which of these two molecules would have the strongest intermolecular forces: hexane or benzene. What intermolecular forces could you find in these?
Benzene due to aromaticity, both have Van der Waals and London dispersion forces
What keeps satellites in orbit and not crash into Earth?
Centrifugal force and high velocity balances out Earth’s Gravity and friction to keep satellites in orbit
What are the 8 main levels of biological classification (taxonomy levels)?
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.
Solve for X:
1 2 3
4 5 4 6 7
2 1 0 10 4 6 3
6 7 X 8 9
2 6 8
X = 4
Recycling aluminium cans can save a lot of energy. How many minutes could you power your laptop with the energy you save from recycling a single aluminium can - as compared to raw material extraction ? (in minutes)
15 minutes