Which kind of investigations allow for the control of variables? A. hypothesis

B. experimental

C. descriptive

D. comparative
(Will give brainliest to first answer)

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .

What is the amount of energy for a photon that has a 125 cm wavelength

Using the thermodynamic information in the aleks data tab, calculate the boiling point of titanium tetrachloride ticl4. round your answer to the nearest degree.