Iron reacts with oxygen in the air to make rust.

Which of the chemical equations matches the reaction above?

A.

4Fe + 3O2 2Fe2O3

B.

2I2 + 3CO2 2C3I2O3

C.

2I2 + 3O2 2I2O3

D.

4Fe + 3CO2 2Fe2C3O3

Which of the following is a skill that will aid students in preparing for a test. A. The ability to read quickly B. Having strong communication skills. C. Knowing how to dissect a test and the questions. D. The ability to write convincingly.

Community colleges have: A. highly selective admission requirements. B. a high tuition. C. flexible schedules. D. large classes.

Samantha wants to tile the floor of her bathroom that measures 20 feet long and 9 feet wide. She determines that she will need 1 tile for every 4 foot by 3 foot area.

What natural disaster was a threat in ancient China? typhoons droughts avalanches volcanic eruptions

Which of the following best explain what questions should be answered in an apartment lease? (Choose all that apply) 1. Are pets allowed in the apartment? 2. Is this apartment in a safe neighborhood? 3.

What makes a good person?

Which nonverbal communication technique is the best way to let customers know that you are honest? making eye contact holding a neutral facial expression taking written notes using expressive gestures

Why do we hav to take the sat

Which renewable energy more effecient than the other and not limited

What do you understand by the term standard features in a magazine.