4. Write a chemical formula for a compound that has two atoms of oxygen (0) and

three atoms of iron (Fe).

What is the Kelvin temperature for 30°C? 130 K 30 K 273 K 293 K 303 K

Which statement best explains how isotopes can have different masses and still be the same element?

Which of the following is an example of geographic isolation? A. a population of salmon dies out because they cannot find food. B. a zebra with a long mane moves into a population of zebras with short manes. C.

Which statement best explains the symbol [NaCl]? moles of water per liter of NaCl moles of water per liter of solution moles of NaCl per liter of solution moles of NaCl per liter of water

Difference between qualitative and quantitative observations?

If the average American throws away 4.5 lb of trash each day, and the population of the US is estimated to be 311 million people, calculated the number of metric tons of garbage thrown away in the US each year.

Difference between radical and compound

Water is a produced when 30.0 grams of hydrogen reacts with 80.0 grams of oxygen what is the limiting reagent

How are reactions and products related in a chemical reaction?

Ollie wants to sign up with an online social network called TeensMeet, which other kids at school have joined.