In chemistry, pure substancesare only two things: elements or compounds. Elements are substances made up of only one kind of atom. Currently, … See more Pure substancesin chemistry are a classification of matter (substances) that are made up of all the same type of atom (elements), or all the same, molecules (covalent bonds), or … See more As said earlier, every one of the 118 elements on the Periodic Table is a pure substance, so you can start your search for examples with hydrogen, atomic number 1, and continue through to oganesson at 118. … See more All matter is either a pure substance (atoms or compounds) or mixtures. Heterogeneous mixtures are not pure substances because … See more Don’t let chemistry confuse you! See if you can answer these questions, then check your work against our answers below. 1. What does pure substance mean in science? 2. What makes something a pure substance? 3. … See more WebOct 1, 2024 · Examples of molecules that are not compounds but contain more than one atom, each of which is the same kind of atom. Which is a substance that is made up of …
Chemistry chapter 2 Flashcards Quizlet
WebAug 23, 2024 · Compounds are substances that are made up of more than one type of atom. Elements are the simplest substances made up of only one type of atom. Key Takeaways Pure substances are composed of a single element or compounds. Combinations of different substances are called mixtures. Web(i) An element is the simplest form of matter which is made up of one kind of atoms. (ii) Different elements are made up of different kinds of atoms. (iii) An element may exist as an individual atom (e.g. argon, helium etc.) or as a molecule made up of the same two or more atoms which are chemically combined (e.g. most of the non-metals). hi d way oil edgemont sd
Which statements accurately describe elements? Check all that
WebMore than 90 types of atom exist in nature, and each one forms a different element. Elements are made up of only one type of atom—gold contains only gold atoms, and neon contains only neon atoms—but other substances are mixtures of different kinds of atoms. Atoms also join together chemically to form molecules. Matter is made up of ... WebA substance which cannot be split up into simpler substances by chemical means.? The smallest particle that can exist independently.? A negatively charged particle orbiting around the nucleus.? A substance made up of two or more atoms chemically combined. WebAug 6, 2024 · Kerosene is made up of mixture of hydrocarbons. The chemical composition mainly depends on its source, but it usually consists of about ten different hydrocarbons, where each contains ten to sixteen carbon atoms per molecule. Therefore, assigning kerosene as a mixture is correct. Answer 5) - It is an element. The molecular formula of … how far can tb travel