What is the molar ratio between fe and h2o

What happens if a solid changes the state of substance to liquid?

An atom is most stable when it has eight electrons in its outermost energy level.

How is the sun the major source of energy in the water cycle? Group of answer choices It provides the energy to condense atmospheric water vapor into rain. It provides the energy to create winds that blow air masses across the Earth.

Maria poured 25 grams of water into a beaker. She stirred in 5 grams of salt. The salt dissolved. What is the total mass of Maria's solution of salt water?

Two reactants combine to form one new product. Which of the following best describes this type of chemical reaction? Combustion Synthesis Decomposition Single Replacement

If you add a large piece of zinc to a beaker of acid and, in a separate beaker, zinc shavings to a beaker of acid (of equal concentration/volume), the sample with the zinc shavings will react faster than the sample with the large piece.

How many atoms of oxygen are in 0.100 miles of silicon dioxide, SiO^2

All heat engines involve combustion. True False

What is the mass of 2.2 moles of aluminum oxide (Al2O3) ?

Which are components of cell theory? Check all that apply. All living things are made of cells. Cells are the basic unit of structure and function of all living things. All cells come from other cells. All cells come from nonliving matter.