What is the limiting reactant when 6.8 moles of iron react with 8.9 moles of oxygen gas?

Unbalanced equation: Fe + O2 → Fe2O3

Which statement best identifies the process shown? The process must be fusion because energy is released. A. The process must be fusion because a heavier nucleus forms from smaller nuclei. B.

Hazardous waste recycling facilities will only collect batteries. True False

Which is an intensive property of a substance? density volume length mass Mark this and retum Save and Exit Submit

What is the best explanation for the frequency of eclipses? A. The Moon's orbit is tilted relative to the plane of the Earth's orbit. About every six months, the Sun, Moon and Earth are aligned enough for a solar and a lunar eclipse to occur. B.

What is a judgement based on observation and experiments called?

What is the name of the scientist who discovered the electron

Which of these is not a covalent molecule? 1. F2 2. CO 3. LiF 4. NH3

Define buffer capacity. a. buffer capacity is the amount of acid or base that can be added to a buffer without destroying its effectiveness. b. buffer capacity is the amount of acid that can be added until all of the base is used up. c.

Which of the following is not a chemical reaction a) gas formation b) solid formation c) energy change d) state change

How many moles of copper are needed to react with sulfur to produce 0.25 moles Ol copper (1) sulfide according to the following reaction: 2 Cu + S + Cuzs