The mass of wood before burning does not always equal the mass of the resulting ashes after burning because some other products have been produced and lost.
<h3>Burning of wood</h3>
When wood burns, a form of chemical change takes place and the reaction is reversible.
The products of wood burning include ashes, carbon dioxide, and water vapor. However, only ashes remain after burning because carbon dioxide and water vapor both escape into the atmosphere.
The escape of some of the products of burning into the atmosphere is one of the reasons the reaction seems to negate the law of conservation of mass.
According to the law of conservation of mass, masses are conserved during reactions but can be converted to different forms. Thus, if ashes were to be the only product of the burning of wood, then the mass of the ashes formed must be equivalent to the mass of the wood.
However, due to the formation of other products that happen to always escape into the air, the mass of ashes is not always equal to the mass of the woods that burn.
More on the law of conservation of mass can be found here: brainly.com/question/28711001
#SPJ1
Answer:
Since the force applied at both ends is acting in opposite directions, then the resultant force becomes negative.
= 35 - 25 = 10
The ether that is formed when ethyl alcohol is heated in the presence of sulfuric acid that is concentrated is called diethyl ether. Heating the alcohol breaks the bond between the R group and the OH group forming an ether. The formula of the ether would be CH3CH2OCH2CH3.
Answer:The purpose of the salt bridge in an electrochemical cell is to <u>maintain electrical neutrality in the half-cells via migration of ions </u>
Explanation:
A salt bridge is a u-shaped tube or filter paper bridge type laboratory device used to connect the oxidation and reduction half-cells of a galvanic/voltaic cell. it maintains electrical neutrality in the half cells thereby preventing the cell from having imbalance of charges in the flow of electrons moving from one half cell to another.
Answer:
3,550,000
Explanation:
3 significant figures is a number which has 3 figures
and zeros ( zero is not a figure )