A) Subscripts in the reactants must be conserved in the products. B) Coefficients are used to balance the atoms on both sides. C) The law of conservation of matter must be followed. D) Phases are often shown for each compound but are not critical to balancing an equation. E) All of the above statements (a-d) are true.
With Magnetic force no movement is necessary in contrast to electric force. C. The last part requires you to compare and contrast motors and Generators, C) In a generator the interaction of moving objects creates a magnetic field and that field generates the electric power. An electric motor uses energy created by a magnetic field. FRI. POST Thread
ANSWERS TO ENO":OF-CHAPTER QUESTIONS Multiple Choice and Matching Question answers appear in Appendix F of the text. Short Answer Essay Questions 23. Energy is defined as the capacity to do work, or to put matter into motion. Energy has no mass, takes up no space, and can be measured only by its effects on matter. Potential energy is the energy an object has because of its position in relatibn to other objects.
Then Kaku states that force fields can do more than deflecting laser beams because it can levitate objects by the use of magnetic force fields. To support that, he explains that when we place two magnets opposite to each other, the two magnets will repel each other. However he wrote that making force fields and to levitate heavy objects is nearly impossible since we lack advanced technology. For my response, Kaku doesn’t completely explain everything. Suppose that you have a structure on a planet or a spaceship in the middle of nowhere, and suppose you don't want the force field on all the time either because there are times when protection isn't needed.
Observations: Quantitative & Qualitative Data Table Table 1: Solubility Qualitative data: Substances | Time (s) | Soluble or not? (Yes/No) | X | 42 | Yes | Y | 63 | Yes | Z | >180 | No | Table 2: Appearance of the substances while melting Substance X- White rocky powdery dots Qualitative data: Time (s) | Physical appearance of substance X | 10 | White powder dots | 26 | White powder dots | 44 | White powder dots | 55 | White powder dots | 65 | The color of the white powder dots changes to brown powder dots | 82 | Starts to melt a tiny bit | 107 | It stops melting, and there are still white powder left | 125 | Stays as white powder, no melting | 155 | White powder dots, nothing happens | 178 | White powder dots, no melting | 183 | White powder dots, nothing happens | 207 | A few of the tiny white dots starts to melt again | 230 | The white powder stops finally stay still | Table 3: Appearance of the substances while melting Substance Y- White crystal dots Qualitative data: Time (s) | Physical appearance of substance Y | 3 | White crystal dots | 20 | White crystal dots, no change | 40 | White crystal dots, no physical change
|reactant |e. |skeleton equation | |c. |chemical equation | | ____ 1. a chemical equation that does not indicate relative amounts of reactants and products ____ 2. a new substance formed in a chemical reaction ____ 3. a starting substance in a chemical reaction ____ 4. a concise representation
a. alkali metals b. alkaline earth metals c. halogens d. noble gases e. none of the above 3. What is the collective term for the elements in Groups 1, 2, 13-18? a. actinide series b. lanthanide series c. rare earth elements d. representative elements e. transition elements 4. What is the collective term for the elements in Groups 3-12? a. actinide series b. lanthanide series
The Stable isotope does not decay and therefore, maintains a constant concentration on Earth. An unstable isotope, also known as a radioactive isotope decays. An unstable isotope may decay by the ejection of an electron or positron, known as beta decay, or by the ejection of two protons and two neutrons, known as alpha decay. 2. Describe two recent discoveries of transuranic elements explaining how they were produced.
Apple’s employees, local government official’s that help control regulations and third party energy supplies all take a role in providing renewable energy to Apple’s retail stores, corporate offices, and data centers. By Apple ensuring that by 2025, all their offices are using renewable energy will help leave our planet in a better condition than it was when Apple first opened for business over thirty years ago. Organizational Change Management Strategies Apple’s computer’s organizations culture plays a major role in obtaining their goal of using 100 percent renewable energy in all their retail stores, corporate offices, and data centers. The company’s passion for creativity and innovation helped shape the company’s culture into using renewable energy. Strategic planning need to make sure that every level of the company is informed of the goals for renewable energy.
In each part of the experiment, you will be observing a different property of electrolytes. Keep in mind that you will be encountering three types of compounds and aqueous solutions: Ionic Compounds These are usually strong electrolytes and can be expected to 100% dissociate in aqueous solution. Example: NaNO 3 (s) → Na+(aq) + NO 3 –(aq) Molecular Compounds These are usually non-electrolytes. They do not dissociate to form ions. Resulting solutions do not conduct electricity.