Tutor profile: Aaron E.

How do you ensure that mass is conserved in a chemical reaction?

In order to obey the Law of Conservation of Matter, we must ensure that both the reactants (usually the left side of the equation) and the products have an equal number of chemical species for example calcium carbide as it mixes with water produces acetylene gas and calcium hydroxide. When we write this reaction in an equation we must make sure that we are diligently writing the formulas correctly - remember the criss-cross rule when writing ionic formulas. CaC2 + 2H2O --> C2H2 + Ca(OH)2 The easiest way is to make a T chart as shown 1 Ca 1Ca 2 C 2C 2H 4H 4H Note that here our hydrogens are 2 O 20 unbalanced and by simply adding a 2 in front of the water we have balanced the formula successfully and conserved matter.

Are viruses considered to be a living thing?

When answering this question you have to remember what are the traits of living organisms. 1. Living things are made of cells - A living thing could be unicellular and be considered; however, upon close inspection of a virus, you will notice they lack all of the "machinery" that other living things have. 2. Our second hint that viruses may not be living is that living things must reproduce. Viruses need to hijack other host cells in order to replicate. 3. Our third at this point clear answer that viruses are not living is that they must respond to their environment and use energy. Viruses are total moochers they take energy from their host - a parasite if you will. In addition, the book is still out about if they respond to their environment... It sure seems COVID is quite aware of its surroundings. In conclusion, while viruses may not fit our definition of living things. They are definitely unique and fascinating particles and deserve our respect as they live their lives with us.

The topic of Anatomy is often coupled with another area of study called physiology. Explain the differences and possibly any similarities between the two. Knowing that anatomy is the study of the body list examples of the different body systems that fall under the term anatomy.

Anatomy has many differences from physiology because anatomy only covers the structures (morphology) of each body part - their forms and how they are organized within the human body. Physiology however attempts to explain how each body part does the job or carries out the role that is required for life. For example, teeth are found in the oral cavity their physiology is to allow humans to crush, grind, and masticate the foods which they eat. Secondly, The body systems that are found in the study of anatomy and are as follows: Skeletal, cardiovascular, integumentary, muscular, nervous, digestive, reproductive, lymphatic, respiratory, urinary system. As you can see, Anatomy has many interesting and complex systems that all work together to make you function