Desiree Ellison C108 Task 1 Template

デジタル形式で段階的に解決 ありがとう!! SOLVE STEP BY STEP IN DIGITAL FORMAT Structure of Metal Materials: 8. A colleague calculated the density of iron with BCC structure using the following data of atomic radius equal to 1.24 Angstrom and atomic weight of 55.85 as follows: p = [(4 atoms / C. U.) x (55.85 g/atomic weight)/(atoms/atomic weight) / [2(1.24x108 cm)/√2]³ p = 68.8 g/cm³ Is the result obtained logical? Explain and justify your answer.

8. If matter is uniform throughout and cannot be separated into other substances by physical processes but can be decomposed into other substances by chemical processes, it is called a(n)

A student found that her mixture was 13% NH4Cl, 18% NaCl and 75% SiO2. Assuming that her calculations are correct, what did she most likely do incorrectly in her experiment? Group of answer choices The sublimation process was not complete. The extraction process was not complete. The decantation process was not complete. The filtration process was not complete. The drying process was not complete.

There are four sketches below. The first sketch shows a sample of Substance X. The three sketches underneath it show three different changes to the sample. You must decide whether each of these changes is possible. If a change is possible, you must also decide whether it is a physical change or a chemical change. Each sketch is drawn as if the sample were under a microscope so powerful that individual atoms could be seen. Also, you should assume that you can see the entire sample, and that the sample is in a sealed box, so that no matter can enter or leave. Sample of Substance X Change 1 Change 1 is O impossible O O a chemical change a physical change Change 2 Change 2 is: impossible O a physical change O a chemical change Change 3 000 000 Change 3 is: O impossible O a physical change O a chemical change X

There are four sketches below. The first sketch shows a sample of Substance X. The three sketches underneath it show three different changes to the sample. You must decide whether each of these changes is possible. If a change is possible, you must also decide whether it is a physical change or a chemical change. Each sketch is drawn as if the sample were under a microscope so powerful that individual atoms could be seen. Also, you should assume that you can see the entire sample, and that the sample is in a sealed box, so that no matter can enter or leave.

There are four sketches below. The first sketch shows a sample of Substance X. The three sketches underneath it show three different changes to the sample. You must decide whether each of these changes is possible. If a change is possible, you must also decide whether it is a physical change or a chemical change. Each sketch is drawn as if the sample were under a microscope so powerful that individual atoms could be seen. Also, you should assume that you can see the entire sample, and that the sample is in a sealed box, so that no matter can enter or leave.

Write balanced complete ionic equation for CaS(aq) +CdCl2 (aq) → CdS(s) + CaCl (aq). Express your answer as a chemical equation. Identify all of the phases in your answer. ΑΣφ You have already submitted thin

The study of the structure of a material can be carried out at four different levels. The first is the subatomic level, which studies the atom individually and the behavior of its nucleus and electrons. The second level is the atomic level, which studies the interaction between several atoms and the formation of bonds and molecules. The third level is the microscopic level, which corresponds to the atomic and molecular arrangements and the formation of crystalline, molecular, and amorphous structures. Finally, the macroscopic level relates to the material's behavior in service. (CALLISTER JR., W. D.; RETHWISCH, D. G. Materials Science and Engineering: An Introduction. 8th ed. Rio de Janeiro: LTC Publisher, 2013). Regarding the basic concepts of materials science, mark the correct option: One of the basic concepts of materials science concerns how the atoms, molecules, or ions that constitute a material are spatially organized. This is the concept of material composition. Basic…

PbO2(s)+HCl(aq)→Cl2(g)+PbCl2(aq)+H2O(l)PbO2(s)+HCl(aq)→Cl2(g)+PbCl2(aq)+H2O(l) Express your answer as a chemical equation. Identify all of the phases in your answer.   Balance each chemical equation.

1. Two beakers are on a desk, one containing water, one containing mercury. A glass tube is placed in each. Explain what would happen in each glass tube and why. Include a diagram

A sample of solid silver oxide with a mass of 11.4 grams was reduced to elemental silver by heating under a flow of methane gas, CH4. The reaction produced 10.6 grams of silver. Write a balanced chemical reaction for the reaction between silver oxide and methane gas. The only products formed in the reaction are solid silver metal, carbon dioxide gas, and water vapor. Include the phases of each reactant and product.

101 Chem101 C Chegg Search X b My Questions | bartleby X G Which of the following is NOT t x + -> app.101edu.co M Apps G M Gmail YouTube Maps a AMAZON Translate Gflights USCIS Ь ВАТERBLY C CHEGG > KATAPULK CUBA SUPERMARKET23 Essay Writing Ser... G calculator - Googl... Reading List Question 4 of 22 Submit Which of the following is NOT true of molecular iodine, I,? A) It has a covalent double bond. B) It has a covalent single bond. C) It is a homonuclear diatomic molecule. D) Each iodine atom has three lone pairs of electrons. +

Q1-Complete the blanks? 1-Major categories of gaseous atmospheric chemical species are................. 2-An atmospheric molecule designated by an asterisk, such as NO2*, is...................