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

The person whos says: " They must have arrived by now". a. is making a grammatical mistake b. thinks it's probable that they have arrived c. knows how long the journey takes d. has some evidence for her prediction.

Stimulants are also called what?

1. What is Dressmaking? 2. What is Tailoring? 3. What are the tools & Equipments in dressmaking/tailoring?

I know this isnt math but how do i find my gpa in middle School

A precaution for heat transfer lab

Why is it important that the cells dna is duplicated before cell division the subject is science it didnt have science as a subject

What hloaday is in January

You are visisting a mountain in the northwest part of United States the mountain has steep sides and is not part of a mountain range a crater can be seen at the top of the mountain hypotheses about what type of mountain you are visiting

Rupert is copying some files from his computer to a compact disc, like the one shown above. If the diameter of the compact disc is 120 millimeters, what is the approximate area ignoring the center hole? Use = 3.14.

A baseball player hits a ball straight up at 20 m/s. ignore any horizontal component of velocity the ball may have. how ling does the ball take to reach its maximum height?