🚨LAST MINUTE! ALKANY, ALKENY I ALKINY - POWTÓRZENIE + ZADANIA 🔥 | Nowa Era, klasa 8

Hi! In this episode, review before the salt test. Adapted to the new core curriculum! [1/p.138/NE8] Classify the hydrocarbons with the given molecular formulas as alkanes, alkenes, or alkynes. C3H6, C9H16, C8H18, C3H8, C6H12, C7H12, C5H10, C4H10, C10H18, C2H6 [2/p.138/NE8] Write the molecular and structural formulas of hydrocarbons that have: a) the same number of carbon and hydrogen atoms per molecule; b) 10 hydrogen atoms per molecule. [3/p.138/NE8] Match the names of the hydrocarbons (1-5) with their molecular formulas (A-E) and group formulas (I-V). 1. propane 2. pent-1-yne 3. but-1-ene 4. propyne 5. pent-1-ene A. C5H8 B. C5H10 C. C4H8 D. C3H8 E. C3H4 I. CH2CHCH2CH3 II. CHCCH3 III. CH3CH2CH3 IV. CH2CH(CH2)2CH3 V. CHC(CH2)2CH3 [4/p.138/NE8] The solubility of gasoline in water was tested. Oil and water were added to test tubes containing gasoline. Complete the following sentences to form the correct information. Choose one term from the ones given in each parentheses. Gasoline (dissolves / does not dissolve) in water. Its density is (greater / lower) than the density of water, so when mixed with water, it forms a layer (above / below) the water layer. Gasoline (dissolves/doesn't dissolve) fats, which is why it is used to remove (greasy/colored) stains from clothes. [5/p.138/NE8] Polypropylene is a chemical compound with the formula: Calculate how many monomer molecules are needed to create a polypropylene molecule with a mass of 231,502 u. [6/p.138/NE8] Complete the equations for the combustion reactions of hydrocarbons. [7/p.138/NE8] Write the equations for the chemical reactions shown in the diagrams. a) but-1-yne = but-1-ene = butane b) propyne = dichloropropene = tetrachloropropane [8/p.138/NE8] Write the formulas and names of the substances marked with letters (W-Z) and the equations for the chemical reactions (1-7) shown using a chemograph. 🎓 Tutoring Offer: Want to expand your knowledge in chemistry, math, or other subjects? I offer flexible online tutoring tailored to your individual needs! No matter your level – from elementary to high school, from basic to advanced – we will achieve success together! 📞 Contact me: I'm happy to answer your questions and help you choose the best way to learn: 📧 Email: [email protected] 💬 Discord: luz_chemia 🌐 Discord server:   / discord   🌐 Website: https://luzchemia.pl 🌐 Our social media: 📸 Instagram:   / luz_chemia   💬 Discord:   / discord   🙏 Channel Support: If you enjoy learning and would like to support my work, you can do so at:    / @luzchemia  . Your support helps me create even better educational content and expand the range of materials available on the channel. I also encourage you to share your thoughts in the comments below the video – your opinions are valuable to me and help me tailor the content to your needs! Together, we create lighthearted and informative chemical adventures! 🔬🧪📐 for reading the description! Source: New Era, Chemistry of the New Era. Jan Kulawik, Teresa Kulawik, Maria Litwin Use in accordance with Article 29 of the Quotation Law. 0:30 Task 1 - Alkanes, alkenes, alkynes - general 3:06 Task 2 - General formula of alkanes, alkenes, alkynes 8:38 Task 3 - Names and formulas of hydrocarbons 12:06 Task 4 - Gasoline 12:59 Task 5 - Polymerization 14:24 Task 6 - Combustion of alkanes, alkenes, and alkynes 19:41 Task 7 - Addition 23:23 Task 8 - Combustion, addition