H2O 2nd Semester

Chemistry

100

Name four halogen elements. 

Fluorine(F), Chlorine(Cl), Bromine(Br), Iodine(I), Astatine(At), Tennessine(Ts)

200

Compare the strength of these four acids (HCl, HF, HBr, HI). 

List acids from the strongest to the weakest. 

HI, HBr, HCl, HF

Method 1: Comparing pKa value (pKa = -logKa)

pKa of HF: 3.1

pKa of HCl: -6.0

pKa of HBr: -9.0

pKa of HI: -9.5

300

What is a difference between reaction quotient and equilibrium constant?

Reaction Quotient: Can differ in each situation 

Equilibrium Constant: Always same (Only depending on change in temperature)

400

What are three points of the Kinetic Molecular Theory?

1. Volume of each pariticle is neligible

2. No attraction between particles

3. Particles in the constant random motion

4. Same average kinetic energy

5. No kinetic energy is lost

500

How long must a current of 5.00 A be applied to a solution of Ag1 to produce 10.5 g silver metal (answer in seconds)? 

1.88 x 10 ³ s

Biology

100

What is a final electron acceptor in cellular respiration?

Oxygen

200

What are three factors of meiosis that lead to greater genetic diversity?

Recombination(Crossing Over), Independent Assortment, and Random Fertilization

300

Describe all steps of DNA replication (7 Steps total).

1. Helicase unwinds double helix of DNA

2. Single Strand Binding Proteins(SSBP) stabilize single strand of DNA 

3. Topoisomerase release supercoils

4. RNA primase synthesizes RNA primer

5. DNA polymerase 3 create a copied DNA

6. DNA polymerase 1 replace RNA primer with DNA sequences

7. Ligase attach to the strands.

400

Provide 6 symbiotic relationships.

Competition, Predation, Parasitism, Herbivory, Mutualism, and Commensalism 

500

What is a name of protein that exists in the centromere holding sister chromatids 

Shugoshin

Physics

100

What is the unit and symbol of inductance?

H, Henry

200

As a particle moves along the number line, its position at time t is x(t), its velocity is v(t), and its acceleration is a(t) = - cos (t). If v(ㅠ) = 2 and x(ㅠ/2) = 3ㅠ, what is x(0)?

1 + 2ㅠ

300

A simple pendulum of length L hanging an object of mass M has a period T. We replaced mass M with mass 5M. What will be the new period of this pendulum?

T

400

If the distance between the two wires is tripled, what is the magnitude of the new magnetic force exerted on wire X? (the original magnetic force was F_B)

F_B / 3

500

When a particle and its' antiparticle come into contact, this type of event occurs, releasing inordinately high amounts of energy. What is the name of this event?

annihilation event

Misc.

100

What is the acceleration of light (light travels in a straight line at a constant speed of 300,000 m/s?)

0 m/s²

200

Use of Plasma Therapy has been studied in several outbreaks of other respiratory infections? Name two outbreaks?

SARS-CoV-1
H1N1

MERS-CoV

300

Explain two ways that genetic variation arises.

crossing over, random fertilization, mutations

400

import java.util.ArrayList;

public class Main { 

  public static void main(String[] args) { 

    ArrayList<String> cars = new ArrayList<String>();

    cars.add("Hello");

    cars.add("Bye");

    cars.add("Hello");

    cars.add("Bye");

    for (String i : cars) {

      System.out.println(i);

    }

  } 

}

What will be the output of this code?

Hello

Bye

Hello

Bye

500

𝑖δ𝑡ψ=−(1/2)δ𝑥²ψ+κ|ψ|²ψ

What is the name of this equation?

Nonlinear Schrödinger equation