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Ninth Grade (Grade 9) Chemistry Questions

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Grade 9 :: Biochemistry by LBeth
[math]C_6H_12O_6 + 6O_2->6CO_2+6H_2O+en ergy [/math] is the balanced chemical equation for
  1. photosynthesis
  2. glycolysis
  3. cellular respiration
  4. Krebs cycle
Grade 9 :: Bonds and Mixing by der1228
Grade 9 :: Properties of Matter by kaitlyn_woods
What is matter?
  1. anything that has mass and takes up space
  2. anything that has momentum and takes up space
  3. the study of properties of mass and how it changes
  4. something that cannot be broken down nto any other substances
Grade 9 :: Atomic Structure by der1228
The three particles that make up an atom are
  1. protons, neutrons, and isotopes
  2. neutrons, isotopes, and electrons
  3. positives, negatives, and electrons
  4. protons, neutrons, and electrons.
Grade 9 :: Reactions by mpjose
Grade 9 :: Acids and Bases by radiance
Which of the following theories defines acid as a species that forms hydronium ion in water?
  1. Arrhenius theory
  2. Lewis acid-base theory
  3. Lowry-Bronsted theory
Grade 9 :: Properties of Matter by sackjd
What can be said about the molecules represented in the diagram?
Particle State - Gas
  1. The molecules move very slowly.
  2. The molecules are very close together.
  3. The molecules have a natural resistance to flowing.
  4. The molecules have a very high energy state.
Grade 9 :: Properties of Matter by sackjd
Grade 9 :: Biochemistry by meganber
Which of these is NOT a stage of cell respiration?
  1. Calvin cycle
  2. Krebs cycle
  3. Glycolysis
  4. Electron transport chain
Grade 9 :: Biochemistry by clperez
What is the body's ability to remain at a constant internal environment called?
  1. metabolism
  2. homeostasis
  3. active transport
  4. positive feedback
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