Me. you very much! 15 points : )
how does a steam engine do work?
a. steam expands and spins an axle.
b. steam turns a turbine.
c. steam causes wheels to turn.
d. steam enters a cylinder and pushes a piston.

Express the following number in scientific notation. 0.026890 =

Compare and contrast physical changes with chemical changes.

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide