da7man

Write a paragraph about the picture as follows. Make sure to write in normal paragraph form (don't separate or identify sentences).

Sentence 1: Introduce the subject of the picture

Sentence 2: Use the passive voice to describe something where we don't know who performed an action in the picture, or it is not important.

Sentence 3: Use active voice to describe something showing who/what did the action

Sentence 4: Use the passive voice to describe something where we know who did the action in the picture but don't identify them

Sentence 5: Concluding sentence

NH4NO3 contains 5 % of moisture. Calculate the content of nitrogen (mass fraction) in the moist substance. The atomic mass of nitrogen is 14 g/mol and the molecular mass of NH4NO3 is 80 g/mol.

Unspoken Rules

• Why do we say, “Bless You!” when someone sneezes? Do all people say it?

• Why do we instinctively walk on the right side of a sidewalk? Do all people walk on the right side?

• Why do people instinctively line up when they are trying to get in somewhere or talk to someone? What would happen if they didn’t form a line? Who decided we should stand in a line?

• Why do we shake hands when we meet someone? Do all people shake hands? Who started this?

We do things every day without even thinking about them. They are the unspoken rules of our society. In this lab, you will choose a common social rule. You can use one of the examples above or choose one of your own. Use online sources, as well as what you learned in the unit, to help you answer the questions.

1 . What is the unspoken rule that you decided to research?

2. Where did this unspoken rule come from?

3. Is this rule universal or particular to your country or region?

4. What would happen if everyone suddenly stopped following this unspoken rule?

5. Cite the sources you used for your research.

What would you say to someone who has a great balance in their schedule at college?

Calculate the content (mass fraction) of hydrogen and oxygen in H2O. The molecular mass of H2O is 18 g/mol and the atomic masses are 1 g/mol (H) and 16 g/mol (O).

Discuss the difference between categorical frequency distribution and grouped frequency distribution using examples.

Calculate the molar mass of water (H2O) by adding up the atomic masses of hydrogen (H) and oxygen (O) atoms. Remember to consider the number of atoms in the molecule when calculating the molar mass.

Solve the following integral: ∫(2x^3 + 5x^2 - 3x + 4) dx

Remember to use the power rule for integration and follow the steps to find the antiderivative of the function.

Balance the following chemical equation: 

Fe + O2 -> Fe2O3