I think the answer is B . I really hope that this helps you out.
The density told you the mass covered by one unit of volume of that substance.
Density defines how perfectly the molecules of a substance are packed in a unit of volume.
In the given problem the substances are expressed in g/ml which means that a unit of volume will be 1 mL.
Given ,
Density of mercury = 13.546 g/ml
It means 1mL of mercury will have a mass of 13.546 g, Similarly 1 mL of ethanol will have a mass of 0.789 g.
0.350 L * 10^3 ml/1 L* 13.546/1 mL = 4,741.1 g
The volume of ethanol will have an equal mass is
4741.1 g* 1 mL/0.789g = 6,008.9 mL
6,008.9 mL* 1L/10^3mL = 6.0081 L
Hence the answer is 6.0081 L
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Answer:
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Explanation:
Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. For example, a newly quarried rock face or sand dunes. Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat.
REAL NAME - SHRESTH DUBEY
Heat is absorbed. A.
An Endothermic reaction takes in heat while an Exothermic reaction gives out heat.
Answer: 25 moles of product are formed.
Explanation:
The balanced chemical equation will be :
According to stoichiometry :
1 mole of 
require = 3 moles of 
Thus 5 moles of 
will require=
of
Thus is the limiting reagent as it limits the formation of product and is the excess reagent.
As 4 moles of reactant give = 5 moles of product
Thus 20 moles of reactants will give =
of products
