Chem to Go

  • Table sugar – carbon, hydrogen and oxygen
  • Marble – calcium, carbon and oxygen
  • Natural gas – carbon and hydrogen
  • Rubbing alcohol – carbon, hydrogen and oxygen 
  • Glass – silicon and oxygen 
  • Table sugar – 12 atoms of carbon, 22 atoms of hydrogen and 11 atoms of oxygen
  • Marble – 1 atom of calcium, 1 atom of carbon and 3 atoms of oxygen
  • Natural gas – 1 atom of carbon and 4 atoms of hydrogen
  • Rubbing alcohol – 3 atoms of carbon, 8 atoms of hydrogen and 1 atom of oxygen
  • Glass – 1 atom of silicon and 2 atoms of oxygen
  • Table sugar – 45 atoms present 
  • Marble – 5 atoms present
  • Natural gas – 5 atoms present 
  • Rubbing alcohol – 12 atoms present 
  • Glass – 3 atoms present

2. NO2 (2 should be smaller than the symbol O)

3. Rubbing alcohol is made up of carbon, hydrogen and oxygen. One of carbon’s forms is a diamond which is the hardest substance known to man. It has 6 electrons. Hydrogen is a colorless, odorless, highly flammable element with one electron in its outer shell. Oxygen is also a colorless, tasteless and odorless element with 8 electrons. 

The property of the compound, rubbing alcohol is similar to hydrogen and oxygen. Rubbing alcohol is flammable like hydrogen. It is colorless like hydrogen and oxygen. Although it has some different properties such as it has a slight odor and a bitter taste. 

 

Chem Talk 1

In the lab today, we decomposed water into hydrogen and oxygen using electricity. Hydrogen and Oxygen are examples of elements. An element is any material that cannot be broken down into simpler materials. For example, some elements you might be familiar with are zinc, gold, carbon, lithium and helium. Everyday everything we see is made up of a hundred different elements as well as hundreds of different combinations of elements. If you look at the Periodic Table there are many letters instead of the full name of the element. That is because elements have symbols. It is easier to just write O instead of writing out oxygen. Another example, the symbol for hydrogen is H and the symbol for carbon is C. 

What happens when elements combine? Compounds! When elements combine and make a compound, that compound has many new characteristics. For example, water is a compound, it is made up of 2 atoms of hydrogen and 1 atom of oxygen (side note: an atom is the smallest particle of an element). Similar to elements, instead of symbols, compounds are represented with chemical formulas. The chemical formula consists of the symbols of the elements that made up that compound. For example, with the compound water, the chemical formula would be H2O.

 

Fixed Mind Sets and Growth Mind Sets

Which are better, fixed mind sets or growth mind sets? Growth mind sets are proven to be better to have in life. People with growth mind sets take on whatever is put in front of them and put their best effort into it even if they might fail. Most importantly, if they fail, they go back and reflect and work even harder the next time. In a classroom, when the student has a growth mind set it allows them to not feel dumb if they get an answer wrong instead feel more determined to fix it.

People with fixed mind sets are afraid to raise their hand unless they know they are absolutely correct. They lose motivation on one bad grade or one small mistake. They think that if they do not have the ability to do it the first time, why go back and try again?

Everything a teacher does in front of his or her students sends a message. When the teacher praises someone for answering the question first it has an effect on other students. It makes them feel dumb because they couldn’t get the answer fast enough. If the teacher has a fixed mind set it is reflected back on the student. However if the teacher has a growth mind set it allows the student to feel comfortable in getting an answer wrong or finishing a test last. When the student starts to have a growth mind set, they excel in their learning. They start to believe that with hard work they can develop intelligence.