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Seventh Grade (Grade 7) Chemistry Questions

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Grade 7 :: Bonds and Mixing by Robyn_Black
Which of the following atoms do not usually form bonds?
  1. Calcium
  2. Neon
  3. Hydrogen
  4. Oxygen
Grade 7 :: Bonds and Mixing by Robyn_Black
Which types of atoms usually become negative ions?
  1. metals
  2. nonmetals
  3. noble gases
  4. all of the above
Grade 7 :: Periodic Table and Elements by Robyn_Black
The atoms of elements in Group 17 of the periodic table are very reactive. Which of the following best describes the energy transfers that happen with the elements in this group?
  1. The more easily an atom loses an electron, the less energy the atom releases.
  2. The more easily an atom gains an electron, the less energy the atom releases.
  3. The more easily an atom loses an electron, the more energy the atom releases.
  4. The more easily an atom gains an electron, the more energy the atom releases.
Grade 7 :: Bonds and Mixing by Robyn_Black
Between which of the following atoms is a covalent bond most likely to occur?
  1. calcium and lithium
  2. sodium and fluorine
  3. nitrogen and oxygen
  4. helium and argon
Grade 7 :: Molecules and Compounds by PMISIAS
Which of the following choices sequences the parts of matter from smallest to largest correctly
  1. atom -> element -> compound
  2. atom -> compound -> element
  3. element -> atom -> compound
  4. element -> compound -> atom
Grade 7 :: Properties of Matter by gwall
               The amount of space that matter occupies.
  1. ore
  2. volume
  3. electrolysis
Grade 7 :: Acids and Bases by loridickson
Which is the most acidic pH?
  1. 2.5
  2. 3.5
  3. 4.5
  4. 5.5
  5. 6.5
Grade 7 :: Properties of Matter by Teacher_T
What is the density of an object that has a mass of 184 g and a volume of 50 cm3?
  1. 9200 g / cm3
  2. 3.68 g / cm3
  3. .271 g / cm3
  4. 3.74 g / cm3
Grade 7 :: Properties of Matter by mndicks
Which choice is associated with mass?
  1. It never changes
  2. Changes as gravity changes
  3. Measured on spring scale
Grade 7 :: Molecules and Compounds by gwall
               A combination of two or more atoms.
  1. volume
  2. molecule
  3. chemical bond
Grade 7 :: Properties of Matter by drbrooks
Density is
  1. matter/solids
  2. volume/mass
  3. gas/liquid
  4. mass/volume
Grade 7 :: Properties of Matter by RebeccaK
Physical change is energy and matter?
  1. True
  2. False
Grade 7 :: Properties of Matter by brownk9
d=m/vThe mass of an object is 23.4g. The volume is 3cm. What is the density?
  1. 7.8g/cm
  2. 6.0g/cm
  3. 5.5g/cm
  4. 5.0g/cm
Grade 7 :: Acids and Bases by RebeccaK
Acids have a ph of 0 to 7?
  1. True
  2. False
Grade 7 :: Phases of Matter by gwall
               The change from the liquid to the gas state of matter.
  1. freezing
  2. vaporization
  3. melting
Grade 7 :: Bonds and Mixing by adamstein
The solubility of most solids in water can be increased by
  1. increasing the solvent
  2. increasing temperature
  3. stirring slowly
  4. increasing the solute
Grade 7 :: Phases of Matter by gwall
               The change in state from a liquid to a solid.
  1. melting
  2. boiling
  3. freezing
Grade 7 :: Atomic Structure by adamstein
An ion of the element carbon has a different number of
  1. protons
  2. electrons
  3. neutrons
  4. all of the above
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