This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
Fresh day Phenyo, let's solve. Here are the answers to your questions: QUESTION 1: Basic 1.1) Define each term: 1.1.1 Pure substance:* A substance that consists of only one type of matter, either an element or a compound, with a fixed chemical composition and distinct properties. 1.1.2 Mixture:* A substance containing two or more different substances that are physically combined but not chemically bonded, retaining their individual properties. 1.1.3 Separation by physical means:* Methods used to separate components of a mixture without changing their chemical identities, such as filtration, evaporation, or magnetism. 1.1.4 Separation by chemical means:* Methods used to break down a compound into its constituent elements or simpler compounds by chemical reactions, which involve changing the chemical identities of the substances. 1.2) Complete the sentence: Mixtures are separated by physical means whereas compounds are separated by chemical means. QUESTION 2: Basic Identify each substance as an element, a compound or a mixture: 2.1 Carbon dioxide gas:* Compound (made of carbon and oxygen chemically bonded) 2.2 Air:* Mixture (made of nitrogen, oxygen, argon, etc., physically mixed) 2.3 Sea water:* Mixture (made of water, salts, and other dissolved substances physically mixed) 2.4 Copper metal:* Element (made of only copper atoms) What's next? Send 'em! 📸