Create a heating curve below knowing that the freezing point of the substance is -5 degrees Celsius and
the boiling point is 85 degrees Celsius.
What is the total energy in kJ needed for 120 grams of the unknown substance to go from a -38 degrees
Celsius to 115 degrees Celsius?

Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

Select the correct answer a modure consists of glucose and water. what is the percent composition of glucose in the mixture if it contains 1.3 moles of glucose (cho total mass of the mature is 276 grams? ) and the a 1775