Assuming the answers are:
a group of hundreds of stars a group of two or more stars
a group of stars that formed around the same time
a group of two stars in which one star is brighter than the other
The correct answer is b:
a group of stars that formed around the same time
Answer:
A
Explanation:
pooooooooooooookiemain soo howt
Answer:
✨ science ✨ and ✨ big brain stuff ✨
Explanation:
sorry
Answer: The percent yield of zinc carbonate is 5.91 %
Explanation:
To calculate the moles :

is the limiting reagent as it limits the formation of product and
is the excess reagent.
According to stoichiometry :
1 mole of produce = 1 mole of
Thus 1.7 moles of
will produce=
of 
Theoretical yield of 
percentage yield = 
The Enthalpy of Reaction is the adjustment in the enthalpy of a compound response that happens at a consistent weight. It is a thermodynamic unit of estimation helpful for figuring the measure of vitality per mole either discharged or created in a response.