Consider the unbalanced equation for aluminum and oxygen producing aluminum oxide: Al + O₂ → Al₂O₃. Which of the following shows the correct way to balance this chemical equation? Al + O₂ → Al₂O₃ Hint- pay attention to the subscripts. They can not change in your answer. A.
4Al + 3O₂ → 2Al₂O₃
B.
2Al + 3O₂ → Al₂O₃
C.
2Al + O₂ → Al₂O₂
D.
6Al + 3O₂ → 3Al₂O₃

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

What is i fracture in the crust called when land move up, down or sideways