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.
![### Chemical Reaction Equations
The following are skeletal reaction equations where reactants need to be filled in to predict the products.
#### b. Silver Nitrate and Ammonium Selenate
- **Reactants:**
- Silver Nitrate
- Ammonium Selenate
- **Equation Format:**
- [Reactant 1] + [Reactant 2] → [Product]
#### c. Copper(II) Sulfate and Barium Nitrate
- **Reactants:**
- Copper(II) Sulfate
- Barium Nitrate
- **Equation Format:**
- [Reactant 1] + [Reactant 2] → [Product]
#### d. Calcium Nitrate and Sodium Iodide
- **Reactants:**
- Calcium Nitrate
- Sodium Iodide
- **Equation Format:**
- [Reactant 1] + [Reactant 2] → [Product]
To complete these equations, ensure that the reactants and the corresponding chemical formulas are correctly identified, and then predict the reaction products using the principles of chemical reactivity and double displacement reactions.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb692af84-21f3-4e00-9062-ab31ad5014d9%2F03553941-4fa3-418a-8a0a-3e30f495ec47%2F3csmsa_processed.png&w=3840&q=75)
Answer is given below
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