5. Assume that the particles in table salt (NaCl) vibrate just as forcefully as the particles in lead (Pb). Explain why table salt remains a solid at 500 °C while lead exists as a liquid.

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Q: 31. What is the_Molarity of 1.17 g of Na¿CO3 dissolved in 750. mL of solution?

A:

Q: What would be the measured pressure of 0.150 mol of CO2 in a 450 mL continer at room temperature…

A: Given that:  Moles of CO2 = 0.150mol V = 450mL = 450mL×1L/1000mL = 0.450L T = 22.0°C = 22.0°C + 273…

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Q: Use the concept of vacancies to explain the chemical activityof atoms

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Q: Which of the following is NOT included in Section 9: Physical and Chemical Properties   Melting…

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A:

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Q: a) Why is ammonia soluble in water?

A:

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.