Answer:
There are 0.017252 moles in SnO2
Explanation:
n= m/M
n=2.6/(118.710 + 2(16))
n= 2.6/150.71
n= 0.017252
Remeber to round based on the significant digits in the question.
To determine the mass of gasoline in the the tank, we need data on the density of gasoline. We multiply this value to the capacity of the gasoline tank. We do as follows:
Mass = 13 gallons (0.0038 m^3 / 1 gallons) ( 732.22 kg/m^3 ) = 36.17 kg or 361771.67 g
36.17 kg ( 2.2 lb / 1 kg ) = 79.58 lb
Answer:
Belong to the same group.
Explanation:
Different elements are most likely to react in similar ways when they belong to the same group.
This is because the elements in the same group always have similar number of valence electrons which implies that they all have the same number of electrons in their outermost shell. For example,barium (Ba), beryllium (Be), calcium (Ca), magnesium (Mg), radium (Ra), strontium (Sr) all have 2 electrons in their outermost shell and thus they belong to group 2 of elements which are known as Alkaline earth metals and they all tend to react in the same manner with other substances
Hey there!
The correct answer is C
Hope this helps you!
Always remember, you are a Work Of Art!
- Nicole :) <3
