Domanda del libro di testo
Classify each of the following mixtures as homogeneous or heterogeneous:
b. herbal tea
2441
views
Ch.3 Matter and Energy
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.1 Chemistry in Our Lives19
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy53
- Ch.4 Atoms and Elements58
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions38
- Ch.8 Gases30
- Ch.9 Solutions50
- Ch.10 Acids and Bases and Equilibrium64
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons77
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones82
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides91
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis86
- Ch.18 Metabolic Pathways and ATP Production73
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249Non è quello che usi tu?Cambia libro di testo
Capitolo 3, Problema 74a
Classify each of the following as an element, a compound, or a mixture:
b. a salad dressing of oil and vinegar
Guida verificata passo dopo passo1
Step 1: Understand the definitions of the terms 'element,' 'compound,' and 'mixture.' An element is a pure substance made of only one type of atom. A compound is a pure substance composed of two or more elements chemically combined in a fixed ratio. A mixture is a combination of two or more substances that are physically combined and can be separated by physical means.
Step 2: Analyze the given substance, which is a salad dressing made of oil and vinegar. Note that oil and vinegar are two distinct substances.
Step 3: Determine if the components (oil and vinegar) are chemically combined or physically combined. In this case, oil and vinegar are physically combined, as they do not chemically react with each other.
Step 4: Consider whether the mixture is homogeneous or heterogeneous. Since oil and vinegar do not mix uniformly and form separate layers, this is a heterogeneous mixture.
Step 5: Conclude that the salad dressing of oil and vinegar is classified as a mixture, specifically a heterogeneous mixture, because it consists of two physically combined substances that are not uniformly distributed.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
35sConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Element
An element is a pure substance that cannot be broken down into simpler substances by chemical means. It consists of only one type of atom and is represented on the periodic table. Examples include hydrogen, oxygen, and gold. Elements are the fundamental building blocks of matter.
Video consigliato:
Percorso guidato
01:14
Valence Electrons of Elements (Simplified) Example 1
Compound
A compound is a substance formed when two or more elements chemically bond together in fixed proportions. Compounds have unique properties that differ from the individual elements that compose them. Water (H2O) and carbon dioxide (CO2) are common examples of compounds, showcasing how elements combine to create new substances.
Video consigliato:
Percorso guidato
02:11Naming Ionic Compounds
Mixture
A mixture is a combination of two or more substances that retain their individual properties and can be separated by physical means. Mixtures can be homogeneous (uniform composition) or heterogeneous (distinct components). The salad dressing of oil and vinegar is a heterogeneous mixture, as the oil and vinegar do not chemically combine and can be visually distinguished.
Video consigliato:
Percorso guidato
02:35Solubility and Intermolecular Forces Concept 1
Pratica correlata
Domanda del libro di testo
Identify each of the following as a physical or chemical property:
c. Gold is a good conductor of electricity.
1915
views
Domanda del libro di testo
Calculate the energy to heat two cubes (gold and aluminum) each with a volume of 10 cm3 from 15 °C to 25 °C. Refer to Tables 2.8 and 3.11.
1943
views
Domanda del libro di testo
After a week, biochemical reactions in compost slow, and the temperature drops to 45 °C. The dark brown organic-rich mixture is ready for use in the garden. What is this temperature in degrees Fahrenheit? In kelvins? (3.3)
1648
views
Domanda del libro di testo
A 70.0-kg person had a quarter-pound cheeseburger, french fries, and a chocolate shake.
<IMAGE>
d. Using TABLE 3.10, determine the number of hours of running needed to burn off the kilocalories in this meal.
2054
views
Domanda del libro di testo
Classify each of the following mixtures as homogeneous or heterogeneous:
c. vegetable oil
2620
views