Consider helium and argon gases. a.Why do helium-filled balloons rise? Justify your answer using a quantified property of helium. b.You have probably seen how people can breathe in helium and the property you discussed in part (a) causes their voices to come out much higher than normal when they talk. What would happen to your voice if you talked after breathing in argon gas? Explain why you should never actually do this.
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Consider helium and argon gases.
a.Why do helium-filled balloons rise? Justify your answer using a quantified property of helium.
b.You have probably seen how people can breathe in helium and the property you discussed in part (a) causes their voices to come out much higher than normal when they talk. What would happen to your voice if you talked after breathing in argon gas? Explain why you should never actually do this.
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