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.
![Title: Identifying Pure Substances and Mixtures
**Question 6**:
Label each of the following as either a pure substance or a mixture. Be sure to answer all parts.
1. **(a) Saliva:** [Dropdown menu to select "Pure Substance" or "Mixture"]
2. **(b) Table salt (sodium chloride):** [Dropdown menu to select "Pure Substance" or "Mixture"]
3. **(c) Wine:** [Dropdown menu to select "Pure Substance" or "Mixture"]
4. **(d) Helium inside of a balloon:** [Dropdown menu to select "Pure Substance" or "Mixture"]
**Timing:**
- A timer shows 2 hours, 29 minutes, and 8 seconds remaining.
**Publisher:**
- McGraw Hill Education
**Navigation:**
- Options to navigate to the previous (Prev) or next (Next) question, with indication that this is question 6 of 30.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F956324b6-9e0b-489f-86ad-f5c61d1b5207%2F3658aadd-3d16-435e-ae44-a589a42b079a%2Fenzrv13.jpeg&w=3840&q=75)
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