Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life. The enzymes in your body help to perform very important tasks
Answer
D
Explanation
The conservation of mass principle says that whatever you do to a chemical, the mass of the reactants must equal the mass of the products.
There is a loss somewhere that has not been accounted for.The ribbon and oxygen add up to 6.95 which means that the reactants (oxygen and Magnesium ribbon) added up to more than the mass of the product.
The product was only 6.53 grams. Why that is so is another matter and how they measured the oxygen is still yet something else.
A is wrong. The mass of Mg was measured, it was not calculated.
B is wrong. The experiment really depends on moles not raw mass (which is measured and then converted to mass.)
C is wrong. They are not equal. The products are a little less than the mass of the reactants added together. They do not differ by much, but they do differ.
The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.
The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment. In bacterial and plant cells, a cell wall is attached to the plasma membrane on its outside surface.
