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.
Please answer 2a, 2b, and 2c
![**QUESTION 2:** In their proper order from left to right and using the smallest set of whole numbers, write the proper coefficients to balance each chemical equation below. If the coefficient is "1", you have to type the number 1 in your answer.
**Example:** H₂ + O₂ ----> H₂O
*Your answer would be: 2, 1, 2*
2a. CH₄ + Cl₂ ----> HCl + CCl₄
2b. Si₃N₄ ----> Si + N₂
2c. P₄ + Cl₂ ----> PCl₃
2d. Cr₂O₃ + H₂ ----> Cr + H₂O
2e. NH₃ + O₂ ----> NO + H₂O
2f. C₆H₆ + O₂ ----> CO₂ + H₂O
2g. CH₃OH + O₂ ----> CO₂ + H₂O
2h. NiCl₂ + O₂ ----> NiO + Cl₂O₅](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3c6fee6f-4c42-45ae-a179-2e46b70b7779%2F8a9e96cb-d890-4c45-96f1-411d347d2ae8%2Fr1vir2_processed.jpeg&w=3840&q=75)
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According to the Law of conservation of mass " all atoms of different elements must be equal on both sides in a chemical reaction"
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