Answer:
There are seven main taxonomic ranks: kingdom, phylum or division, class, order, family, genus, species. In addition, domain (proposed by Carl Woese) is now widely used as a fundamental rank, although it is not mentioned in any of the nomenclature codes, and is a synonym for dominion (lat.
Explanation:
Answer:
4) It disrupts the normal excretion of solid wastes.
Answer:
a) Total vapor pressure = 68.948 Kpa
b) Mole fraction of A = 41%, mole fraction of B = 59%
Explanation:
Find the given attachments.
For #1, we can show conservation of mass stoichiometrically converting the starting amount of reactants into the final amount of products
For instance 2H2O2 —> 2H2O + O2
If we start with 70g H2O2,
our theoretical yield of H2O~ 37g
Our theoretical yield of O2~ 33g
So 70g = 37g + 33g
For #2, an Acid-base reaction always forms a salt and water. For instance,
HCl + NaOH —> H2O + NaCl
This is called neutralization and I would think that Chemical properties would be different, as well as the physical properties.
Answer:
When you move the burette slider to the top of a flask and add about 25 mL of NaOH to the flask, you will cause a concentration of OH- molecules. This will make the solution become a basic solution and make the litmus paper blue.
Explanation:
After reading your question, we can see that you are carrying out a test to discover the nature of the pH of a solution. This type of test uses litmus paper, which is an indicator of the presence of acids and bases, being able to determine the pH of a solution. This paper is soaked in organic ink and when placed in an acidic solution, it is red in color. However, when placed in a basic solution it has a blue color.
An acidic solution is one that has a high concentration of H+ atoms and has the ability to donate electrons. The basic solution, on the other hand, has a high concentration of OH- and has the capacity to receive electrons.
When you move the burette slider to the top of a flask and add about 25 mL of NaOH to the flask, you will cause a concentration of OH- molecules. This will make the solution become a basic solution and make the litmus paper blue, that is, the solution has the basic pH.