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- 1. Multiple Choice
What is the basic building block of matter (made of protons, electrons, and neutrons)?
Matter
Molecule
Atom
Crystal
- 2. Multiple Choice
Solid material whose atoms are arranged in an ordered pattern
Matter
Molecule
Crystal
Substance
- 3. Multiple Choice
Each atom has a charged substructure called a _______________.
membrane
nucleus
orbital
bonding region
- 4. Multiple Choice
Each atom has a charged substructure made of protons and
Neutrons
Electrons
I do not know
Blueface
- 5. Multiple Choice
The periodic table orders elements horizontally by the number of
Electrons in the outermost energy level
Energy levels
I do not know
Relative atomic mass
- 6. Multiple Choice
The amount of energy that a substance must absorb in order to change from a liquid to a gas. (Select all that apply.)
Heat of Fusion
Heat of Evaporation
Heat of Vaporization
Kinetic Theory
Latent heat of evaporation
- 7. Multiple Choice
These elements are located on the right side of the periodic table.
Metals
Metalloids
Non-metals
Supermetals
- 8. Multiple Choice
It is a structure that consists of two or more atoms that are chemically bound together and thus behaves as an independent unit.
Element
Molecule
Compound
Mixture
- 9. Multiple Choice
What do you call the liquid which has passed through a filter?
Residue
Filtrate
Titrate
Analyte
- 10. Multiple Choice
A substance made of two or more elements that cannot be separated by physical means is called a:
compound.
homogeneous mixture.
heterogeneous mixture.
multi-element.
- 11. Multiple ChoiceWhich statement correctly describes the 2 electrodes?The anode is negative and the cathode is positiveThe anode and cathode are both positiveThe anode is positive and the cathode is negativeThe anode and cathode are both negative.
- 12. Multiple Choice
Which equation shows what happen to chloride ions at the anode.
Cl- --> Cl + e-
2Cl- --> Cl2 + 2e-
Cl2 - -> 2e- + 2Cl-
Cl2 + 2e- --> 2Cl-
- 13. Fill in the Blank
Give a reason why platinum is not used as an electrode in electrolysis.
- 14. Multiple Choice
Nitrogen (IV) oxide is a
basic oxide
acidic oxide
amphoteric oxide
Neutral oxide
- 15. Multiple Choice
What is the basis of hydrogen bond?
Attraction forces between hydrogen atom bonded with another hydrogen atom
Attraction forces between hydrogen atom bonded with a high electronegativity atom (F, O, N)
Attraction forces between hydrogen atom bonded with a high electronegativity atom (F, O, N) with atom (F, O, N) of another molecule
Attraction forces between hydrogen atom with another hydrogen atom of another molecule
- 16. Multiple Choicean aqueous soln turns red lithmus blue . excess addition of which of the following would reverse the changebaking powderlimeammonium hydroxide solutionHCL
- 17. Multiple ChoiceIf a few drops of concentrated acid accidentally spills over the hand of a student,what should be donewash the hand with saline solutionwash the hand immediately with plenty of water and apply a soln of sodium hydrogen carbonateafter washing apply soln of sodium hydroxideneutralise the acid wih a strong alkali
- 18. Multiple Choice
The pressure of a 6.5 L sample of oxygen gas is measured to be 3.8 atm. If the gas is transferred into a 12 L tank, what is the new pressure?
6.6 atm
3.9 atm
4.5 atm
2.1 atm
- 19. Multiple Choice
A student transfers a gas at STP from a 11.0 L tank to a 25.0 L tank. If the pressure remains constant, what is the new temperature?
620 K
393 K
254 K
530 K
- 20. Multiple Choice
What is the pressure of a car tire that had an initial pressure of 1.8 atm but was heated from 38°C to 123°C?
0.9 atm
2.1 atm
1.6 atm
3.4 atm
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