Which of the following can be separated into its component parts by physical means?

How do chemical properties differ from physical properties?

Every sample of the sugar glucose (no matter where on Earth it comes from) consists of 8 parts (by mass) oxygen, 6 parts carbon, and 1 part hydrogen.  Based on this, how would you classify glucose? 

How many valence electrons does the following atom contain?

What is the name of our most current model of the atom?

How many protons and electrons are in an ion of suflur: S2- ?

This element gains three electrons when forming an ion; it also helps form an essential source of energy for cells.

What is the charge of an ion of gold (Au) if it has 76 electrons?

Which of the following is a physical change?

MUST USE Honorlock and a WEBCAM. 25 questions multiple-choice, multiple answer, short answer, true/false, fill-in-the-blank, and/or matching. 90 min time limit. Must complete in one sitting. ONLY Two ATTEMPTs! I suggest to take exam ONLY during normal business hours (M-F from 8:00 AM – 5:00 PM), in case you encounter any issues you can contact me or the IT department. Reminder: NO NOTES ALLOWED, NO ELECTRONICS (cellphones, headphones, etc)!!!!If it asks for a password, that means you are either:  A) not using the lockdown browser or B) don’t have your webcam-enabled.  If you receive an error (take a picture and send it to me) it is probably because the Internet (or wi-fi) connection was lost for an extended period of time. You would need to close the browser, sometimes you will need to force shut down your computer, and restart your exam. Keep in mind that your Timer is still running so you should do these steps fast!Reminder: “Students who engage in academic dishonesty also face additional sanctions from the Office of Student Conduct, including expulsion from the College, as outlined in the South Texas College Code of Student Conduct”.