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E-mail Etiquette: How to Request Information Politely

Learn how to request information politely via email, including correct formatting and respectful language. Understand the differences between elements, compounds, and mixtures in chemistry with clear examples. Improve your communication skills today!

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E-mail Etiquette: How to Request Information Politely

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  1. A quick lesson in e-mail etiquette Dear Ms. Schnell, I am in you ___period chemistry class and think I might of copied down your website incorrectly since I have tried reaching it many times and from different computers. The link I copied down is this https://www.greenechemistry.wikispace.com/ and it hasn't been working for me. If I did copy it down wrong as I suspect would you please send me the actual link. I am very sorry for disturbing you but thank you for reading this. Thank you, ________ Div. ___ Chemistry ____st/th period.

  2. Elements, Compounds, and Mixtures Ms. Schnell Lane Tech College Prep 2014-2015

  3. VS How are Elements and Compounds Different? • And • NaCl • salt

  4. Distinguishing Elements and Compounds • Element - the simplest form of matter that has a unique set of properties. *Every atom of an element has the same number of protons • Ex: Carbon ,helium, lithium • Compound - a substance that contains two or more elements combined in a fixed proportion • Ex: Magnesium oxide (MgO), water (H2O), Sodium Chloride (NaCl)

  5. Breaking Down Compounds • In general, Compounds CAN be broken down into simpler substances by chemical or physical changes. Elements cannot. • Ex: When sugar is heated, it goes through a chemical change • Sugar —> Carbon + Water • compound element compound • C12H22O11 —> C H2O

  6. Mixtures • A mixture can be defined as: something that has variable composition. *Mixtures can be separated into pure substances- elements or compounds • EX: AIR is a mixture of oxygen, nitrogen, water, carbon dioxide, argon, and other pure substances • wood is a mixture (composition varies depending on what type of tree it originated from) • Homogeneous Mixture • Heterogeneous Mixture • Vs • The same throughout • Also called a “solution” • Ex: Apple juice, milk, NaOH solution (this means that NaOH has been dissolved in water) • contains regions that have different properties from those of other regions • Ex: water and oil, chocolate chip cookies, a mixture of salt and pepper

  7. Element, Compound, Mixture

  8. Fill in the Concept Map • Matter • Pure • Substance • Mixture • Element • Compound • Homogeneous • Heterogeneous

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