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SVEN [57.7K]
3 years ago
5

What do you think caused the balloon to expand

Chemistry
2 answers:
Anna71 [15]3 years ago
5 0
Pressure on the inside of the balloon was greater than the pressure on the outside of the balloon so it pushed out until the pressures equalized.
IgorLugansk [536]3 years ago
3 0
Balloons expand because of the pressure of the air being blown in to it is pushing against the side which causes the elastic in the balloon to expand.
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Ba(NO₃)₂ + Ca -->  Ca(NO₃)₂ + Ba

There are two types of compounds: molecular/covalent and ionic.

Molecular/covalent compounds are non-metal + non-metal.

Ionic compounds are metal + non-metal.

Looking at the periodic table, barium is a metal. Calcium is also a metal.

Checking a polyatomic ions chart would tell you NO₃⁻ is a non-metal because it has a negative charge.

Since there is no metal + metal compound, the calcium metal would displace barium. The compound remains ionic.

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