Calculate the concentration of the acid or base remaining in solution when 29.2 mL of 1.23M nitric acid is added to 49.5 mL of 0.550M calcium hydroxide solution.

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.

Pinene is an unsaturated hydrocarbon found in pine resin. if pinene has m+ = 136 and contains 1 double bond(s) and 2 ring(s); what is its molecular formula? enter the formula in the form ch first, then all other atoms in alphabetical order; do not use subscripts. the formula is case-sensitive