Hi! Science stands for “Systematic Comprehensive Investigation and Exploration of Nature Causes and Effects”.
What is science?
Science is the systematic study of the structure and behavior of the physical natural world. It is also use for experience or can say it is an experience. Scientists are people who test science/experiments for the worlds. Science really is just the study of the nature. Science use math em empathic and logic, which are sometimes called “formal science”.
Answer:
D
Explanation:
Hopefully this helps you!
The chemical reaction that the situation demonstrates would be a double replacement reaction.
In double replacement reactions, the two reactants participating in the reaction are similarly built in terms of their chemical bonds and they exchange ions to form the products of the reaction. Two products are also formed from the two reactants.
It is as opposed to single replacement reactions in which the two reactants are not similar bond-wise. One of the reactants replaces or displaces one of the ions in another reactant.
In this case, the situation can be represented as follows:
Amanda-Janice + Deja-Eden ----> Amanda-Eden + Deja-Janice
Thus, it is a form of double replacement reaction.
More on double replacement reactions can be found here: brainly.com/question/392491?referrer=searchResults
Answer: The mass of 
molecules of phosphorus pentoxide is 20.5 g
Explanation:
According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number 
of particles.
To calculate the moles, we use the equation:
1 mole of 
weigh = 283.9 g
Thus 0.0772 moles of weigh = 
Thus the mass of molecules of phosphorus pentoxide is 20.5 g
Answer:
Sodium chloride will conduct electricity only when it is in a liquid state or in solution, this is because the ions are free to move in this state, allowing them to carry charge and conduct electricity
Explanation:
hope this helped you learned this in 5th grade
