37 the accepted value for the percent by mass of water in a hydrate is 36.0%. in a laboratory activity, a student determined the percent by mass of water in the hydrate to be 37.8%. what is the percent error for the student's measured value? (1) 5.0% (3) 1.8%
(2) 4.8% (4) 0.05%

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.

Which statement best describes the he properties of iconic compounds ?