Straighterline Chemistry Final Exam Test With Complete Solutions

What is the term used for findings that are summarized based on a pattern or trend? a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - ANSWER--a. Law Which of the following is a tentative explanation for a set of observations? Select one: a.Law b.Hypothesis c. Theory d. Phenomena e. Prediction - ANSWER--b. Hypothesis If a liquid contains 60% sugar and 40% water throughout its composition then what is it called? Select one: a.Solute b.Compound c.Homogeneous mixture d. Heterogeneous mixture e. Solvent - ANSWER--c. Homogeneous mixture Which of the following does not have a uniform composition throughout? Select one: a. Element b. Compound c. Homogeneous mixture d. Heterogeneous mixture e. Solvent - ANSWER--d. Heterogeneous mixture Which one of these represents a physical change? Select one: a. Water, when heated, forms steam. b. Bleach turns hair yellow. c. Sugar, when heated, becomes brown. d. Milk turns sour.e. Apples, when exposed to air, turn brown. - ANSWER--a. Water, when heated, forms steam. How many micrograms are in 65.3 kg? Select one: a. 0.653 g b. 6.53 107 g c. 6.53 104 g d. 6.53 10-8 g e. 6.53 1010 g - ANSWER--e. 6.53 1010 g A smart phone has dimensions of