Given the following combinations:   a. a homogeneous liquid mixture of bromine, Br2, and carbon tetrachloride, CCl4   b. a heterogeneous mixture of sand and silver   c. a homogeneous liquid mixture of benzene and octane, both hydrocarbons   d. a layer of octane floating on a layer of water   e. a gaseous mixture of helium, He, and argon, Ar FOR TWO POINTS EACH circle the letter of the combination that fits the following definitions.  Please note that there are five definitions and five combinations.  This means that there is one AND ONLY ONE correct letter for each of the definitions. Question: Which of the pairs is an undissolved mixture of two compounds

Q: A. MELTING ICE B. BURNING MATCH C. SAND AND SALT MIXING E. WATER FROM F. STEAM D. MILK GOING SOUR…

A:

Q: TRUE OR FALSE 1. A heterogeneous mixture can be separated into pure substances, but a homogeneous…

A: Mixture  A mixture is the physical combination of two or more substances in which the identities are…

Q: II. Tell whether if the following is an example of solid, liquid or gas. Write S for solid, L for…

A: Since you have posted multiple questions, we will solve only first question for you. If you want any…

Q: If a certain mixture contains 29.3027% water, how many grams of water are contained in a 12.2576…

A:

Q: The space between particles within a substance depends on the state of the matter. Which list ranks…

A: generally compounds exist in 3 states Solids Liquids Gas

Q: Explain this statement in your own words and give an example. The properties of the substances…

A: Every compound is made up of atoms and molecules. The atoms combine in a fixed ratio to give the…

Q: classify to be solid, liquid or gas     Particles are close together but are not held rigidly…

A: To identify whether the given statement represents solid, liquid or gas.

Q: 1. Which state of matter has a definite shape and volume ? * a. gas b. liquid C. solid d. both…

A: Since you have posted a question with multiple parts, we can solve only first three parts for you.…

Q: Question 16 Which one of the following is a physical change? A. CH4(g) +202(g) → 2H₂O(g) + CO2(g) C.…

A: Q-16)  A physical change is :-  H2O (s) →H2O (l) (Option- C)

Q: Gas is defined as O a. the form of matter that is easily compressible and will fit into a container…

A: There are three states of matter, solid, liquid, and gas. In the solid states, the intramolecular…

Q: A solution is also called a A. pure mixture O B. heterogeneous mixture C. compound O D. homogeneous…

A: Given,

Q: A chemical change

A: Chemical changes occurs when a substance reacts with another substance which results in the…

Q: Use the information and models to answer the following questiön. A group of students are trying to…

A: Electrical conductive material are those which can transfer charge from one end to other end.

Q: Classify each of the following as an element, a compound, or a mixture a. Oxygen gas b. Sea water c.…

A: a. Oxygen contains similar atoms. So, from the definition; the substance having a similar atom is…

Q: 14. A researcher finds that a solid has high melting and boiling points, and is soluble in water.…

A: Ionic compound is a chemical compound composed of ions held together by electrostatic forces termed…

Q: Question 3: Heat Capacity and Latent Heats a. Revolutionary War soldiers made their own musket balls…

A: Given :-   Mass of Lead, Pb= m = 21 g  Initial temperature of Pb = Ti = 25 °C  Final temperature of…

Q: 12. What is an element? A compound?

A: An element and a compound has to be defined.

Q: 3. As we have seen, hexane is nonpolar and if mixed with water would not dissolve. Instead two…

A: 3) Density is defyaa the ratio of mass to its volume.  Density= mass ÷ volume

Q: Identify each as a homogenous mixture, a heterogeneous mixture, a compound, or an element.a. pure…

A: The chemical combination of 2 or more elements form a compound. Materials containing more than 1…

Q: 1. Give two reasons why one substance might have a greater density than another substance from a…

A: 1. The size, mass, and arrangement of molecules affect the density of a substance. Consider sample A…

Q: How many atoms of sulfur are there in 0.0120mol of S, molecules?

A: 1 mol = 6.22 × 1023 atoms  1 mol S8 = 8 mol S atoms

Q: The space between particles within a substance depends on the state of the matter. Which list ranks…

A:

Q: 2. Structure E is a form of carbon. What is the name of this structure? A. carbide B. graphite Put a…

A: An element is a pure substance made up of only one kind of atom. The elements can be categorised…

Q: 1. Mineral nutrient, e.g. calcium ion, is a component of the A. lithosphere. B. hydrosphere. C.…

A: The different components of the earth are: Atmosphere - It is the blanket of air surrounding the…

Q: How are gases different from solids and liquids? O A. Gases can only be made up of atoms O B. Gases…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Match each substance with the correct categorization. Consider a cup or handful size sample of the…

A: Here we have to identify whether the following given matter are element, compounds , homogeneous…

Q: A student conducts an experiment using an unknown hydrate and obtains the following data Crucible…

A: Given - Crucible =  24.31g Crucible+ hydrate = 29.31g Crucible+ anhydrate =  28.26g Mg % = 29.44% S…

Q: 7. A student combines pure NaCl (sodium chloride) with pure DI water. The resulting is an example…

A: Given process,            Mixing of pure NaCl with pure DI water. a. homogeneous mixture          b.…

Q: 11. During heat conduction in solids * a. the energy of the particles expands. b. the particles…

A:

Q: 5.What similarities can you see among the particles of solid, liquid and gas? 6. Are the particles…

A: Since you have posted multiple questions, the answer for first three question is given below. Kindly…

Q: What area of study in chemistry is concerned with the heat transfers that occur during chemical…

A: Thermodynamics is one of the topic of science which is in physics as well as chemistry.

Q: Examples of solid gas mixture

A: Solid gas mixtures are those mixtures in which solid is the dispersed phase and gas is the…

Q: 26. The least energetic state of matter. 27. When it rains on you, which process just occurred?

A: In a solid, particles are tightly packed together so they do not move much. Since the atoms are…

Q: CH3Br H+, H20 NH NO N. II II IV IZ

A: The given reaction is an example of a stark enamine synthesis reaction.

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.