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Explain the difference between a chemical change and a physical change.

1. Explain the difference between a chemical change and a physical change. 2. List three examples of physical changes and three examples of chemical changes. Explain why these are chemical or physical changes. Laboratory Questions In the following scenarios, tell whether the change being described is a physical or a chemical change, and explain the […]

Accuracy is gauged by comparing the measured value of a known standard to its true value. Assuming the mass of the water represents a standard for the true volume of water, which piece of glassware has the highest degree of accuracy? Why?

Measurement and Uncertainty For this lab you will be given the needed data (as if you had performed the lab yourself). Fill in and answer the below using the information from the lab instructions. Student Name Date Data Data Table 1: Determination of Uncertainty in Lab Balance Trial Cup #1 Mass (g) Cup #1 Deviation […]

Describe the role of intermolecular forces in electronic and molecular shapes. How does the presence of lone (unshared) electrons change the electronic shape in the formation of the molecular shape?

In Discussion 3, describe the role of intermolecular forces in electronic and molecular shapes. How does the presence of lone (unshared) electrons change the electronic shape in the formation of the molecular shape?

Describe a real-life application of chemical equilibrium. How do we as a society benefit from equilibrium-driven processes?

Research and briefly describe a real-life application of chemical equilibrium. How do we as a society benefit from equilibrium-driven processes? Sample contexts may include nutritional, medicinal, agricultural, industrial, commercial, or any other relevant application of your choice. Be sure to cite your sources. Make sure to include any related formulas that you find.

Describe how the chemical principle you have identified is used by the individual in that career. Give some examples.

solution chemistry https://www.acs.org/content/acs/en/careers/college-to-career/chemistry-careers.html Instructions Pick an occupation that you know must use solution chemistry. Describe what that career is and how one gets trained for it. Describe how the chemical principle you have identified is used by the individual in that career. Give some examples. Note: No two people can talk about the exact same […]

Which principle do you think is most useful in impacting percent yield?

https://www.acs.org/content/acs/en/greenchemistry/principles/12-principles-of-green-chemistry.html In the pharmaceutical and material industry, there is often a multi-step process to synthesize a product to be sold. Depending on how many steps there are and how efficient each step is will determine what kind of overall yield the process has. In efforts to improve efficiency and reduce waste, often companies will work […]

Explain how the law works in your example, noting the relationships of, say, pressure, volume, temperature, etc.

Pick one of the gas laws covered in our textbook: Boyle’s Law, Charles’s Law, Gay-Lussac’s Law, The Ideal Gas Law, and Dalton’s Law. Find a real-life example of where your chosen law comes into play and claim this in your Subject heading (e.g. XXX Law, real-life example). Provide the following information. 1 Remind us what […]

Write a brief synopsis of each of your favorites.

Periodic Table Exercise Go to the website: https://ptable.com/?lang=en#Properties This is an interactive periodic table. Pick out your favorite main metal, non-metal, transition metal, and metalloid. Clickn them on the interactive chart. You will find a ii descri tion and several other pages of material concerning each o the left. Click the Name of the element […]

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