Answer:
that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.
Explanation:
For a molecule AB2, 3.5g of A represents one molar fraction, and 8.00g B represents 2 molar fractions (or 4.0+4.0). Therefore, a direct ratio can be given as 3.5:4.0, or 1:1.14. This means a molecule AnBm will give a mass ratio for A:B of n:1.14xm
For a molecule AB, for every 1g of A, you will have 1.14g of B.
For a molecule AB2, for every 1g of A, you will have 2.28g of B.
For a molecule A2B3, for every 1g of A, you will have (1.14x3/2) 1.71g of B.
The model of the solar system is way smaller than the real object. The model of sub-atomic particles in a atom is way larger than the real object.
Answer: The given reaction is a neutralization reaction.
Explanation:
When an acid chemically reacts with a base then it leads to the formation of salt and water.
For example, 
Here, KOH is a the base and 
is an acid which on chemical reaction with each other leads to the formation of salt 
and water 
.
Thus, we can conclude that the given reaction is a neutralization reaction.
Answer:
First of all, why are you leaving your house during quarintine. Second of all, its illegal to drink under age.
Explanation:
