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Straighterline Chemistry Final Complete Questions And Answers | 100% Correct Answers | 2024 Updated Quiz
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Straighterline Chemistry Final Complete Questions And Answers | 100% Correct Answers | 2024 Updated Quiz Straighterline Chemistry Final Complete Questions And Answers | 100% Correct Answers | 2024 Updated Quiz

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  • May 22, 2024
  • 60
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • straighterline chemistry
  • straighterline chemistry final complete questions
  • straighterline chemistry final
  • what is the term used for findings that are summar
  • which of the following is a tentative expla

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Straighterline Chemistry Final Complete Questions And Answers | 100% Correct Answers | 2024 Updated Quiz 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 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 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 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 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. a. Water, when heated, forms steam. How many micrograms are in 65.3 kg? Select one: a. 0.653 μg b. 6.53 × 107 μg c. 6.53 × 104 μg d. 6.53 × 10 -8 μg e. 6.53 × 1010 μg e. 6.53 × 1010 μg A smart phone has dimensions of 4.9 inches (height), 2.3 inches (width) and 8.0 millimeters (depth). What is the volume of the smart phone in cubic centimeters? (1 in = 2.54 cm) Select one: a. 58 cm3 b. 1.7 x 105 cm3 c. 90 cm3 d. 3.4 cm3 e. 34 cm3 a. 58 cm3 Given that 1 inch = 2.54 cm, 1.00 cm3 is equal to Select one: a. 16.4 in3 b. 6.45 in3 c. 0.394 in3 d. 0.155 in3 e. 0.0610 in3 e. 0.0610 in3 What terms defines a mass which is exactly equal to 1/12 the mass of one carbon -12 atom? Select one: a. Isotope number b. Mass number c. Mass -to-charge ratio d. Atomic number e. Atomic mass unit e. Atomic mass unit How many neutrons are there in an atom of lead whose mass number is 208? Select one: a. 82 b. 126 c. 208 d. 290 e. none of them b. 126 Which of these elements is chemically similar to magnesium? Select one: a. Sulfur b. Calcium c. Iron d. Nickel e. Potassium b. Calcium C(graphite) and C(diamond) are examples of: Select one: a. isotopes of carbon. b. allotropes of carbon. c. the law of definite proportions. d. different carbon ions. b. allotropes of carbon. The 80Br - ion has Select one: a. 45 protons, 35 neutrons, 45 electrons. b. 35 protons, 45 neutrons, 34 electrons. c. 35 protons, 45 neutrons, 36 electrons. d. 45 protons, 35 neutrons, 46 electrons. e. 35 protons, 45 neutrons, 46 electrons. e. 35 protons, 45 neutrons, 46 electrons. The formula for sodium sulfide is Select one: a. NaS b. K2S c. NaS2 d. Na2S e. SeS d. Na2S Which one of the following formulas of ionic compounds is the least likely to be correct?

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