Determine the number of moles of oxygen gas (o2) that are needed to react with 0. 725 moles of aluminum (al).

Has anyone here taken the orela elementary education subtest 2 (103)? if so can you link me videos, practice tests, or methods on what you did to pass it?

When graphing a linear equation that is written in the form y=mx+b, the variable m represents the y-intercept. assuming that b> 0, which of the following best describes how reversing the sign of b would affect the graph? a) the new line will be shifted down b units b) the new line will be shifted down b x 2 units c) the new line will be a perfect reflection across the x-axis d) the new line will be a perfect reflection across the y-axis

What percentage of the earth's water is available for use by living things?