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Match it! Select the correct answer from the pull down...Good luck!
Which substances are compounds? Iron (Fe), Sodium Chloride (NaCl), Carbon Dioxide (CO2), Aluminum (Al)
10
heat energy
mixtures can be physically separated.
Particles are packed together very closely
elements
5
Add protons and neutrons
Sodium chloride and Carbon dioxide
How many of the listed substances are elements? HCl, S, Fe, Cu, Au, CaO, NaOH, NaCl, Al
10
heat energy
mixtures can be physically separated.
Particles are packed together very closely
elements
5
Add protons and neutrons
Sodium chloride and Carbon dioxide
What needs to be added to a substance to get it to change from a solid to a liquid to a gas?
10
heat energy
mixtures can be physically separated.
Particles are packed together very closely
elements
5
Add protons and neutrons
Sodium chloride and Carbon dioxide
Water is formed when two hydrogen atoms bond to an oxygen atom. The hydrogen and the oxygen in this example are different...
10
heat energy
mixtures can be physically separated.
Particles are packed together very closely
elements
5
Add protons and neutrons
Sodium chloride and Carbon dioxide
One difference between mixtures and pure substances is that
10
heat energy
mixtures can be physically separated.
Particles are packed together very closely
elements
5
Add protons and neutrons
Sodium chloride and Carbon dioxide
How would you calculate an atom’s atomic mass?
10
heat energy
mixtures can be physically separated.
Particles are packed together very closely
elements
5
Add protons and neutrons
Sodium chloride and Carbon dioxide
How many neutrons would Neon have?
10
heat energy
mixtures can be physically separated.
Particles are packed together very closely
elements
5
Add protons and neutrons
Sodium chloride and Carbon dioxide
Which of the following best describes ice?
10
heat energy
mixtures can be physically separated.
Particles are packed together very closely
elements
5
Add protons and neutrons
Sodium chloride and Carbon dioxide
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